Merge branch 'quilt/i2c'

Conflicts:

	drivers/i2c/i2c-core.c

84 files changed, 5038 insertions, 4035 deletions

diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c
index 1d76de7d75c7..c90e97e02937 100644
--- a/drivers/hwmon/adm1025.c
+++ b/drivers/hwmon/adm1025.c
@@ -2,7 +2,7 @@
  * adm1025.c
  *
  * Copyright (C) 2000       Chen-Yuan Wu <gwu@esoft.com>
- * Copyright (C) 2003-2004  Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2003-2008  Jean Delvare <khali@linux-fr.org>
  *
  * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
  * voltages (including its own power source) and up to two temperatures
@@ -109,22 +109,35 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
  * Functions declaration
  */
 
-static int adm1025_attach_adapter(struct i2c_adapter *adapter);
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind);
+static int adm1025_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1025_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
 static void adm1025_init_client(struct i2c_client *client);
-static int adm1025_detach_client(struct i2c_client *client);
+static int adm1025_remove(struct i2c_client *client);
 static struct adm1025_data *adm1025_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id adm1025_id[] = {
+	{ "adm1025", adm1025 },
+	{ "ne1619", ne1619 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1025_id);
+
 static struct i2c_driver adm1025_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "adm1025",
 	},
-	.attach_adapter	= adm1025_attach_adapter,
-	.detach_client	= adm1025_detach_client,
+	.probe		= adm1025_probe,
+	.remove		= adm1025_remove,
+	.id_table	= adm1025_id,
+	.detect		= adm1025_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -132,7 +145,6 @@ static struct i2c_driver adm1025_driver = {
  */
 
 struct adm1025_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -344,13 +356,6 @@ static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
  * Real code
  */
 
-static int adm1025_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, adm1025_detect);
-}
-
 static struct attribute *adm1025_attributes[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -403,31 +408,16 @@ static const struct attribute_group adm1025_group_in4 = {
 	.attrs = adm1025_attributes_in4,
 };
 
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1025_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	struct i2c_client *client;
-	struct adm1025_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = client->adapter;
 	const char *name = "";
 	u8 config;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &adm1025_driver;
+		return -ENODEV;
 
 	/*
 	 * Now we do the remaining detection. A negative kind means that
@@ -448,8 +438,8 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
 		     ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
 			dev_dbg(&adapter->dev,
 				"ADM1025 detection failed at 0x%02x.\n",
-				address);
-			goto exit_free;
+				client->addr);
+			return -ENODEV;
 		}
 	}
 
@@ -465,7 +455,7 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
 			}
 		} else
 		if (man_id == 0xA1) { /* Philips */
-			if (address != 0x2E
+			if (client->addr != 0x2E
 			 && (chip_id & 0xF0) == 0x20) { /* NE1619 */
 				kind = ne1619;
 			}
@@ -475,7 +465,7 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_info(&adapter->dev,
 			    "Unsupported chip (man_id=0x%02X, "
 			    "chip_id=0x%02X).\n", man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
@@ -484,23 +474,36 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
 	} else if (kind == ne1619) {
 		name = "ne1619";
 	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
 
-	/* We can fill in the remaining client fields */
-	strlcpy(client->name, name, I2C_NAME_SIZE);
-	mutex_init(&data->update_lock);
+	return 0;
+}
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
+static int adm1025_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1025_data *data;
+	int err;
+	u8 config;
+
+	data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
 
 	/* Initialize the ADM1025 chip */
 	adm1025_init_client(client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	/* Pin 11 is either in4 (+12V) or VID4 */
+	config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
 	if (!(config & 0x20)) {
 		if ((err = sysfs_create_group(&client->dev.kobj,
 					      &adm1025_group_in4)))
@@ -518,8 +521,6 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
 	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
-exit_detach:
-	i2c_detach_client(client);
 exit_free:
 	kfree(data);
 exit:
@@ -568,18 +569,14 @@ static void adm1025_init_client(struct i2c_client *client)
 					  (reg&0x7E)|0x01);
 }
 
-static int adm1025_detach_client(struct i2c_client *client)
+static int adm1025_remove(struct i2c_client *client)
 {
 	struct adm1025_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
 	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
index fe2eea4d799b..32ecae3c5211 100644
--- a/drivers/hwmon/asb100.c
+++ b/drivers/hwmon/asb100.c
@@ -176,10 +176,8 @@ static u8 DIV_TO_REG(long val)
    data is pointed to by client->data. The structure itself is
    dynamically allocated, at the same time the client itself is allocated. */
 struct asb100_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex lock;
-	enum chips type;
 
 	struct mutex update_lock;
 	unsigned long last_updated;	/* In jiffies */
@@ -206,18 +204,30 @@ struct asb100_data {
 static int asb100_read_value(struct i2c_client *client, u16 reg);
 static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val);
 
-static int asb100_attach_adapter(struct i2c_adapter *adapter);
-static int asb100_detect(struct i2c_adapter *adapter, int address, int kind);
-static int asb100_detach_client(struct i2c_client *client);
+static int asb100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int asb100_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int asb100_remove(struct i2c_client *client);
 static struct asb100_data *asb100_update_device(struct device *dev);
 static void asb100_init_client(struct i2c_client *client);
 
+static struct i2c_device_id asb100_id[] = {
+	{ "asb100", asb100 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, asb100_id);
+
 static struct i2c_driver asb100_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "asb100",
 	},
-	.attach_adapter	= asb100_attach_adapter,
-	.detach_client	= asb100_detach_client,
+	.probe		= asb100_probe,
+	.remove		= asb100_remove,
+	.id_table	= asb100_id,
+	.detect		= asb100_detect,
+	.address_data	= &addr_data,
 };
 
 /* 7 Voltages */
@@ -619,35 +629,13 @@ static const struct attribute_group asb100_group = {
 	.attrs = asb100_attributes,
 };
 
-/* This function is called when:
-	asb100_driver is inserted (when this module is loaded), for each
-		available adapter
-	when a new adapter is inserted (and asb100_driver is still present)
- */
-static int asb100_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, asb100_detect);
-}
-
-static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
-		int kind, struct i2c_client *client)
+static int asb100_detect_subclients(struct i2c_client *client)
 {
 	int i, id, err;
+	int address = client->addr;
+	unsigned short sc_addr[2];
 	struct asb100_data *data = i2c_get_clientdata(client);
-
-	data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!(data->lm75[0])) {
-		err = -ENOMEM;
-		goto ERROR_SC_0;
-	}
-
-	data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!(data->lm75[1])) {
-		err = -ENOMEM;
-		goto ERROR_SC_1;
-	}
+	struct i2c_adapter *adapter = client->adapter;
 
 	id = i2c_adapter_id(adapter);
 
@@ -665,37 +653,34 @@ static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
 		asb100_write_value(client, ASB100_REG_I2C_SUBADDR,
 					(force_subclients[2] & 0x07) |
 					((force_subclients[3] & 0x07) << 4));
-		data->lm75[0]->addr = force_subclients[2];
-		data->lm75[1]->addr = force_subclients[3];
+		sc_addr[0] = force_subclients[2];
+		sc_addr[1] = force_subclients[3];
 	} else {
 		int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR);
-		data->lm75[0]->addr = 0x48 + (val & 0x07);
-		data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07);
+		sc_addr[0] = 0x48 + (val & 0x07);
+		sc_addr[1] = 0x48 + ((val >> 4) & 0x07);
 	}
 
-	if (data->lm75[0]->addr == data->lm75[1]->addr) {
+	if (sc_addr[0] == sc_addr[1]) {
 		dev_err(&client->dev, "duplicate addresses 0x%x "
-				"for subclients\n", data->lm75[0]->addr);
+				"for subclients\n", sc_addr[0]);
 		err = -ENODEV;
 		goto ERROR_SC_2;
 	}
 
-	for (i = 0; i <= 1; i++) {
-		i2c_set_clientdata(data->lm75[i], NULL);
-		data->lm75[i]->adapter = adapter;
-		data->lm75[i]->driver = &asb100_driver;
-		strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE);
-	}
-
-	if ((err = i2c_attach_client(data->lm75[0]))) {
+	data->lm75[0] = i2c_new_dummy(adapter, sc_addr[0]);
+	if (!data->lm75[0]) {
 		dev_err(&client->dev, "subclient %d registration "
-			"at address 0x%x failed.\n", i, data->lm75[0]->addr);
+			"at address 0x%x failed.\n", 1, sc_addr[0]);
+		err = -ENOMEM;
 		goto ERROR_SC_2;
 	}
 
-	if ((err = i2c_attach_client(data->lm75[1]))) {
+	data->lm75[1] = i2c_new_dummy(adapter, sc_addr[1]);
+	if (!data->lm75[1]) {
 		dev_err(&client->dev, "subclient %d registration "
-			"at address 0x%x failed.\n", i, data->lm75[1]->addr);
+			"at address 0x%x failed.\n", 2, sc_addr[1]);
+		err = -ENOMEM;
 		goto ERROR_SC_3;
 	}
 
@@ -703,55 +688,31 @@ static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
 
 /* Undo inits in case of errors */
 ERROR_SC_3:
-	i2c_detach_client(data->lm75[0]);
+	i2c_unregister_device(data->lm75[0]);
 ERROR_SC_2:
-	kfree(data->lm75[1]);
-ERROR_SC_1:
-	kfree(data->lm75[0]);
-ERROR_SC_0:
 	return err;
 }
 
-static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int asb100_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	int err;
-	struct i2c_client *client;
-	struct asb100_data *data;
+	struct i2c_adapter *adapter = client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
 		pr_debug("asb100.o: detect failed, "
 				"smbus byte data not supported!\n");
-		err = -ENODEV;
-		goto ERROR0;
+		return -ENODEV;
 	}
 
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access asb100_{read,write}_value. */
-
-	if (!(data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL))) {
-		pr_debug("asb100.o: detect failed, kzalloc failed!\n");
-		err = -ENOMEM;
-		goto ERROR0;
-	}
-
-	client = &data->client;
-	mutex_init(&data->lock);
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &asb100_driver;
-
-	/* Now, we do the remaining detection. */
-
 	/* The chip may be stuck in some other bank than bank 0. This may
 	   make reading other information impossible. Specify a force=... or
 	   force_*=... parameter, and the chip will be reset to the right
 	   bank. */
 	if (kind < 0) {
 
-		int val1 = asb100_read_value(client, ASB100_REG_BANK);
-		int val2 = asb100_read_value(client, ASB100_REG_CHIPMAN);
+		int val1 = i2c_smbus_read_byte_data(client, ASB100_REG_BANK);
+		int val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN);
 
 		/* If we're in bank 0 */
 		if ((!(val1 & 0x07)) &&
@@ -761,48 +722,60 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
 				((val1 & 0x80) && (val2 != 0x06)))) {
 			pr_debug("asb100.o: detect failed, "
 					"bad chip id 0x%02x!\n", val2);
-			err = -ENODEV;
-			goto ERROR1;
+			return -ENODEV;
 		}
 
 	} /* kind < 0 */
 
 	/* We have either had a force parameter, or we have already detected
 	   Winbond. Put it now into bank 0 and Vendor ID High Byte */
-	asb100_write_value(client, ASB100_REG_BANK,
-		(asb100_read_value(client, ASB100_REG_BANK) & 0x78) | 0x80);
+	i2c_smbus_write_byte_data(client, ASB100_REG_BANK,
+		(i2c_smbus_read_byte_data(client, ASB100_REG_BANK) & 0x78)
+		| 0x80);
 
 	/* Determine the chip type. */
 	if (kind <= 0) {
-		int val1 = asb100_read_value(client, ASB100_REG_WCHIPID);
-		int val2 = asb100_read_value(client, ASB100_REG_CHIPMAN);
+		int val1 = i2c_smbus_read_byte_data(client, ASB100_REG_WCHIPID);
+		int val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN);
 
 		if ((val1 == 0x31) && (val2 == 0x06))
 			kind = asb100;
 		else {
 			if (kind == 0)
-				dev_warn(&client->dev, "ignoring "
+				dev_warn(&adapter->dev, "ignoring "
 					"'force' parameter for unknown chip "
 					"at adapter %d, address 0x%02x.\n",
-					i2c_adapter_id(adapter), address);
-			err = -ENODEV;
-			goto ERROR1;
+					i2c_adapter_id(adapter), client->addr);
+			return -ENODEV;
 		}
 	}
 
-	/* Fill in remaining client fields and put it into the global list */
-	strlcpy(client->name, "asb100", I2C_NAME_SIZE);
-	data->type = kind;
-	mutex_init(&data->update_lock);
+	strlcpy(info->type, "asb100", I2C_NAME_SIZE);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto ERROR1;
+	return 0;
+}
+
+static int asb100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int err;
+	struct asb100_data *data;
+
+	data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL);
+	if (!data) {
+		pr_debug("asb100.o: probe failed, kzalloc failed!\n");
+		err = -ENOMEM;
+		goto ERROR0;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
 
 	/* Attach secondary lm75 clients */
-	if ((err = asb100_detect_subclients(adapter, address, kind,
-			client)))
-		goto ERROR2;
+	err = asb100_detect_subclients(client);
+	if (err)
+		goto ERROR1;
 
 	/* Initialize the chip */
 	asb100_init_client(client);
@@ -827,39 +800,25 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
 ERROR4:
 	sysfs_remove_group(&client->dev.kobj, &asb100_group);
 ERROR3:
-	i2c_detach_client(data->lm75[1]);
-	i2c_detach_client(data->lm75[0]);
-	kfree(data->lm75[1]);
-	kfree(data->lm75[0]);
-ERROR2:
-	i2c_detach_client(client);
+	i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
 ERROR1:
 	kfree(data);
 ERROR0:
 	return err;
 }
 
-static int asb100_detach_client(struct i2c_client *client)
+static int asb100_remove(struct i2c_client *client)
 {
 	struct asb100_data *data = i2c_get_clientdata(client);
-	int err;
-
-	/* main client */
-	if (data) {
-		hwmon_device_unregister(data->hwmon_dev);
-		sysfs_remove_group(&client->dev.kobj, &asb100_group);
-	}
 
-	if ((err = i2c_detach_client(client)))
-		return err;
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &asb100_group);
 
-	/* main client */
-	if (data)
-		kfree(data);
+	i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
 
-	/* subclient */
-	else
-		kfree(client);
+	kfree(data);
 
 	return 0;
 }
diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c
index 01c17e387f03..d44172d29264 100644
--- a/drivers/hwmon/atxp1.c
+++ b/drivers/hwmon/atxp1.c
@@ -46,21 +46,32 @@ static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END };
 
 I2C_CLIENT_INSMOD_1(atxp1);
 
-static int atxp1_attach_adapter(struct i2c_adapter * adapter);
-static int atxp1_detach_client(struct i2c_client * client);
+static int atxp1_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int atxp1_remove(struct i2c_client *client);
 static struct atxp1_data * atxp1_update_device(struct device *dev);
-static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind);
+static int atxp1_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
+
+static struct i2c_device_id atxp1_id[] = {
+	{ "atxp1", atxp1 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, atxp1_id);
 
 static struct i2c_driver atxp1_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "atxp1",
 	},
-	.attach_adapter = atxp1_attach_adapter,
-	.detach_client	= atxp1_detach_client,
+	.probe		= atxp1_probe,
+	.remove		= atxp1_remove,
+	.id_table	= atxp1_id,
+	.detect		= atxp1_detect,
+	.address_data	= &addr_data,
 };
 
 struct atxp1_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	unsigned long last_updated;
@@ -263,35 +274,16 @@ static const struct attribute_group atxp1_group = {
 };
 
 
-static int atxp1_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int atxp1_detect(struct i2c_client *new_client, int kind,
+			struct i2c_board_info *info)
 {
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, &atxp1_detect);
-};
+	struct i2c_adapter *adapter = new_client->adapter;
 
-static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client * new_client;
-	struct atxp1_data * data;
-	int err = 0;
 	u8 temp;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct atxp1_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &atxp1_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Detect ATXP1, checking if vendor ID registers are all zero */
 	if (!((i2c_smbus_read_byte_data(new_client, 0x3e) == 0) &&
@@ -305,35 +297,46 @@ static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind)
 
 		if (!((i2c_smbus_read_byte_data(new_client, 0x10) == temp) &&
 			 (i2c_smbus_read_byte_data(new_client, 0x11) == temp) ))
-			goto exit_free;
+			return -ENODEV;
 	}
 
 	/* Get VRM */
-	data->vrm = vid_which_vrm();
+	temp = vid_which_vrm();
 
-	if ((data->vrm != 90) && (data->vrm != 91)) {
-		dev_err(&new_client->dev, "Not supporting VRM %d.%d\n",
-				data->vrm / 10, data->vrm % 10);
-		goto exit_free;
+	if ((temp != 90) && (temp != 91)) {
+		dev_err(&adapter->dev, "atxp1: Not supporting VRM %d.%d\n",
+				temp / 10, temp % 10);
+		return -ENODEV;
 	}
 
-	strncpy(new_client->name, "atxp1", I2C_NAME_SIZE);
-
-	data->valid = 0;
+	strlcpy(info->type, "atxp1", I2C_NAME_SIZE);
 
-	mutex_init(&data->update_lock);
+	return 0;
+}
 
-	err = i2c_attach_client(new_client);
+static int atxp1_probe(struct i2c_client *new_client,
+		       const struct i2c_device_id *id)
+{
+	struct atxp1_data *data;
+	int err;
 
-	if (err)
-	{
-		dev_err(&new_client->dev, "Attach client error.\n");
-		goto exit_free;
+	data = kzalloc(sizeof(struct atxp1_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
 	}
 
+	/* Get VRM */
+	data->vrm = vid_which_vrm();
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+
+	mutex_init(&data->update_lock);
+
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &atxp1_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -348,30 +351,22 @@ static int atxp1_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &atxp1_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 };
 
-static int atxp1_detach_client(struct i2c_client * client)
+static int atxp1_remove(struct i2c_client *client)
 {
 	struct atxp1_data * data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &atxp1_group);
 
-	err = i2c_detach_client(client);
-
-	if (err)
-		dev_err(&client->dev, "Failed to detach client.\n");
-	else
-		kfree(data);
+	kfree(data);
 
-	return err;
+	return 0;
 };
 
 static int __init atxp1_init(void)
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index dc1f30e432ea..1692de369969 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -87,7 +87,6 @@ I2C_CLIENT_INSMOD_2(f75373, f75375);
 
 struct f75375_data {
 	unsigned short addr;
-	struct i2c_client *client;
 	struct device *hwmon_dev;
 
 	const char *name;
@@ -114,21 +113,12 @@ struct f75375_data {
 	s8 temp_max_hyst[2];
 };
 
-static int f75375_attach_adapter(struct i2c_adapter *adapter);
-static int f75375_detect(struct i2c_adapter *adapter, int address, int kind);
-static int f75375_detach_client(struct i2c_client *client);
+static int f75375_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
 static int f75375_probe(struct i2c_client *client,
 			const struct i2c_device_id *id);
 static int f75375_remove(struct i2c_client *client);
 
-static struct i2c_driver f75375_legacy_driver = {
-	.driver = {
-		.name = "f75375_legacy",
-	},
-	.attach_adapter = f75375_attach_adapter,
-	.detach_client = f75375_detach_client,
-};
-
 static const struct i2c_device_id f75375_id[] = {
 	{ "f75373", f75373 },
 	{ "f75375", f75375 },
@@ -137,12 +127,15 @@ static const struct i2c_device_id f75375_id[] = {
 MODULE_DEVICE_TABLE(i2c, f75375_id);
 
 static struct i2c_driver f75375_driver = {
+	.class = I2C_CLASS_HWMON,
 	.driver = {
 		.name = "f75375",
 	},
 	.probe = f75375_probe,
 	.remove = f75375_remove,
 	.id_table = f75375_id,
+	.detect = f75375_detect,
+	.address_data = &addr_data,
 };
 
 static inline int f75375_read8(struct i2c_client *client, u8 reg)
@@ -607,22 +600,6 @@ static const struct attribute_group f75375_group = {
 	.attrs = f75375_attributes,
 };
 
-static int f75375_detach_client(struct i2c_client *client)
-{
-	int err;
-
-	f75375_remove(client);
-	err = i2c_detach_client(client);
-	if (err) {
-		dev_err(&client->dev,
-			"Client deregistration failed, "
-			"client not detached.\n");
-		return err;
-	}
-	kfree(client);
-	return 0;
-}
-
 static void f75375_init(struct i2c_client *client, struct f75375_data *data,
 		struct f75375s_platform_data *f75375s_pdata)
 {
@@ -651,7 +628,6 @@ static int f75375_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
-	data->client = client;
 	mutex_init(&data->update_lock);
 	data->kind = id->driver_data;
 
@@ -700,29 +676,13 @@ static int f75375_remove(struct i2c_client *client)
 	return 0;
 }
 
-static int f75375_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, f75375_detect);
-}
-
-/* This function is called by i2c_probe */
-static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int f75375_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	struct i2c_client *client;
+	struct i2c_adapter *adapter = client->adapter;
 	u8 version = 0;
-	int err = 0;
 	const char *name = "";
-	struct i2c_device_id id;
-
-	if (!(client = kzalloc(sizeof(*client), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &f75375_legacy_driver;
 
 	if (kind < 0) {
 		u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
@@ -736,7 +696,7 @@ static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_err(&adapter->dev,
 				"failed,%02X,%02X,%02X\n",
 				chipid, version, vendid);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
@@ -746,43 +706,18 @@ static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
 		name = "f75373";
 	}
 	dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
-	strlcpy(client->name, name, I2C_NAME_SIZE);
-
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
-
-	strlcpy(id.name, name, I2C_NAME_SIZE);
-	id.driver_data = kind;
-	if ((err = f75375_probe(client, &id)) < 0)
-		goto exit_detach;
+	strlcpy(info->type, name, I2C_NAME_SIZE);
 
 	return 0;
-
-exit_detach:
-	i2c_detach_client(client);
-exit_free:
-	kfree(client);
-exit:
-	return err;
 }
 
 static int __init sensors_f75375_init(void)
 {
-	int status;
-	status = i2c_add_driver(&f75375_driver);
-	if (status)
-		return status;
-
-	status = i2c_add_driver(&f75375_legacy_driver);
-	if (status)
-		i2c_del_driver(&f75375_driver);
-
-	return status;
+	return i2c_add_driver(&f75375_driver);
 }
 
 static void __exit sensors_f75375_exit(void)
 {
-	i2c_del_driver(&f75375_legacy_driver);
 	i2c_del_driver(&f75375_driver);
 }
 
diff --git a/drivers/hwmon/fscher.c b/drivers/hwmon/fscher.c
index ed26b66e0831..3a3373427a74 100644
--- a/drivers/hwmon/fscher.c
+++ b/drivers/hwmon/fscher.c
@@ -106,9 +106,11 @@ I2C_CLIENT_INSMOD_1(fscher);
  * Functions declaration
  */
 
-static int fscher_attach_adapter(struct i2c_adapter *adapter);
-static int fscher_detect(struct i2c_adapter *adapter, int address, int kind);
-static int fscher_detach_client(struct i2c_client *client);
+static int fscher_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fscher_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fscher_remove(struct i2c_client *client);
 static struct fscher_data *fscher_update_device(struct device *dev);
 static void fscher_init_client(struct i2c_client *client);
 
@@ -119,12 +121,21 @@ static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
  * Driver data (common to all clients)
  */
  
+static struct i2c_device_id fscher_id[] = {
+	{ "fscher", fscher },
+	{ }
+};
+
 static struct i2c_driver fscher_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "fscher",
 	},
-	.attach_adapter	= fscher_attach_adapter,
-	.detach_client	= fscher_detach_client,
+	.probe		= fscher_probe,
+	.remove		= fscher_remove,
+	.id_table	= fscher_id,
+	.detect		= fscher_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -132,7 +143,6 @@ static struct i2c_driver fscher_driver = {
  */
 
 struct fscher_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -283,38 +293,14 @@ static const struct attribute_group fscher_group = {
  * Real code
  */
 
-static int fscher_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, fscher_detect);
-}
-
-static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int fscher_detect(struct i2c_client *new_client, int kind,
+			 struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct fscher_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	 * client structure, even though we cannot fill it completely yet.
-	 * But it allows us to access i2c_smbus_read_byte_data. */
-	if (!(data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-  	}
-
-	/* The common I2C client data is placed right before the
-	 * Hermes-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &fscher_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Do the remaining detection unless force or force_fscher parameter */
 	if (kind < 0) {
@@ -324,24 +310,35 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
 		     FSCHER_REG_IDENT_1) != 0x45)	/* 'E' */
 		 || (i2c_smbus_read_byte_data(new_client,
 		     FSCHER_REG_IDENT_2) != 0x52))	/* 'R' */
-			goto exit_free;
+			return -ENODEV;
+	}
+
+	strlcpy(info->type, "fscher", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int fscher_probe(struct i2c_client *new_client,
+			const struct i2c_device_id *id)
+{
+	struct fscher_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
 	}
 
-	/* Fill in the remaining client fields and put it into the
-	 * global list */
-	strlcpy(new_client->name, "fscher", I2C_NAME_SIZE);
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	fscher_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &fscher_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -353,25 +350,19 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &fscher_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int fscher_detach_client(struct i2c_client *client)
+static int fscher_remove(struct i2c_client *client)
 {
 	struct fscher_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &fscher_group);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index bd89d270a5ed..aa320f297194 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -171,20 +171,37 @@ static const int FSCHMD_NO_TEMP_SENSORS[5] = { 3, 3, 4, 3, 5 };
  * Functions declarations
  */
 
-static int fschmd_attach_adapter(struct i2c_adapter *adapter);
-static int fschmd_detach_client(struct i2c_client *client);
+static int fschmd_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fschmd_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fschmd_remove(struct i2c_client *client);
 static struct fschmd_data *fschmd_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id fschmd_id[] = {
+	{ "fscpos", fscpos },
+	{ "fscher", fscher },
+	{ "fscscy", fscscy },
+	{ "fschrc", fschrc },
+	{ "fschmd", fschmd },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, fschmd_id);
+
 static struct i2c_driver fschmd_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= FSCHMD_NAME,
 	},
-	.attach_adapter	= fschmd_attach_adapter,
-	.detach_client	= fschmd_detach_client,
+	.probe		= fschmd_probe,
+	.remove		= fschmd_remove,
+	.id_table	= fschmd_id,
+	.detect		= fschmd_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -192,7 +209,6 @@ static struct i2c_driver fschmd_driver = {
  */
 
 struct fschmd_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	int kind;
@@ -269,7 +285,7 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute
 	v = SENSORS_LIMIT(v, -128, 127) + 128;
 
 	mutex_lock(&data->update_lock);
-	i2c_smbus_write_byte_data(&data->client,
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
 		FSCHMD_REG_TEMP_LIMIT[data->kind][index], v);
 	data->temp_max[index] = v;
 	mutex_unlock(&data->update_lock);
@@ -346,14 +362,14 @@ static ssize_t store_fan_div(struct device *dev, struct device_attribute
 
 	mutex_lock(&data->update_lock);
 
-	reg = i2c_smbus_read_byte_data(&data->client,
+	reg = i2c_smbus_read_byte_data(to_i2c_client(dev),
 		FSCHMD_REG_FAN_RIPPLE[data->kind][index]);
 
 	/* bits 2..7 reserved => mask with 0x03 */
 	reg &= ~0x03;
 	reg |= v;
 
-	i2c_smbus_write_byte_data(&data->client,
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
 		FSCHMD_REG_FAN_RIPPLE[data->kind][index], reg);
 
 	data->fan_ripple[index] = reg;
@@ -416,7 +432,7 @@ static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
 
 	mutex_lock(&data->update_lock);
 
-	i2c_smbus_write_byte_data(&data->client,
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
 		FSCHMD_REG_FAN_MIN[data->kind][index], v);
 	data->fan_min[index] = v;
 
@@ -448,14 +464,14 @@ static ssize_t store_alert_led(struct device *dev,
 
 	mutex_lock(&data->update_lock);
 
-	reg = i2c_smbus_read_byte_data(&data->client, FSCHMD_REG_CONTROL);
+	reg = i2c_smbus_read_byte_data(to_i2c_client(dev), FSCHMD_REG_CONTROL);
 
 	if (v)
 		reg |= FSCHMD_CONTROL_ALERT_LED_MASK;
 	else
 		reg &= ~FSCHMD_CONTROL_ALERT_LED_MASK;
 
-	i2c_smbus_write_byte_data(&data->client, FSCHMD_REG_CONTROL, reg);
+	i2c_smbus_write_byte_data(to_i2c_client(dev), FSCHMD_REG_CONTROL, reg);
 
 	data->global_control = reg;
 
@@ -600,32 +616,15 @@ static void fschmd_dmi_decode(const struct dmi_header *header)
 	}
 }
 
-static int fschmd_detect(struct i2c_adapter *adapter, int address, int kind)
+static int fschmd_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	struct i2c_client *client;
-	struct fschmd_data *data;
-	u8 revision;
-	const char * const names[5] = { "Poseidon", "Hermes", "Scylla",
-					"Heracles", "Heimdall" };
+	struct i2c_adapter *adapter = client->adapter;
 	const char * const client_names[5] = { "fscpos", "fscher", "fscscy",
 						"fschrc", "fschmd" };
-	int i, err = 0;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		return 0;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	 * client structure, even though we cannot fill it completely yet.
-	 * But it allows us to access i2c_smbus_read_byte_data. */
-	if (!(data = kzalloc(sizeof(struct fschmd_data), GFP_KERNEL)))
-		return -ENOMEM;
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &fschmd_driver;
-	mutex_init(&data->update_lock);
+		return -ENODEV;
 
 	/* Detect & Identify the chip */
 	if (kind <= 0) {
@@ -650,9 +649,31 @@ static int fschmd_detect(struct i2c_adapter *adapter, int address, int kind)
 		else if (!strcmp(id, "HMD"))
 			kind = fschmd;
 		else
-			goto exit_free;
+			return -ENODEV;
 	}
 
+	strlcpy(info->type, client_names[kind - 1], I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int fschmd_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct fschmd_data *data;
+	u8 revision;
+	const char * const names[5] = { "Poseidon", "Hermes", "Scylla",
+					"Heracles", "Heimdall" };
+	int i, err;
+	enum chips kind = id->driver_data;
+
+	data = kzalloc(sizeof(struct fschmd_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
 	if (kind == fscpos) {
 		/* The Poseidon has hardwired temp limits, fill these
 		   in for the alarm resetting code */
@@ -674,11 +695,6 @@ static int fschmd_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* i2c kind goes from 1-5, we want from 0-4 to address arrays */
 	data->kind = kind - 1;
-	strlcpy(client->name, client_names[data->kind], I2C_NAME_SIZE);
-
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
 
 	for (i = 0; i < ARRAY_SIZE(fschmd_attr); i++) {
 		err = device_create_file(&client->dev,
@@ -726,25 +742,14 @@ static int fschmd_detect(struct i2c_adapter *adapter, int address, int kind)
 	return 0;
 
 exit_detach:
-	fschmd_detach_client(client); /* will also free data for us */
-	return err;
-
-exit_free:
-	kfree(data);
+	fschmd_remove(client); /* will also free data for us */
 	return err;
 }
 
-static int fschmd_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, fschmd_detect);
-}
-
-static int fschmd_detach_client(struct i2c_client *client)
+static int fschmd_remove(struct i2c_client *client)
 {
 	struct fschmd_data *data = i2c_get_clientdata(client);
-	int i, err;
+	int i;
 
 	/* Check if registered in case we're called from fschmd_detect
 	   to cleanup after an error */
@@ -760,9 +765,6 @@ static int fschmd_detach_client(struct i2c_client *client)
 		device_remove_file(&client->dev,
 					&fschmd_fan_attr[i].dev_attr);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c
index 00f48484e54b..30a7a4756972 100644
--- a/drivers/hwmon/fscpos.c
+++ b/drivers/hwmon/fscpos.c
@@ -87,9 +87,11 @@ static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
 /*
  * Functions declaration
  */
-static int fscpos_attach_adapter(struct i2c_adapter *adapter);
-static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind);
-static int fscpos_detach_client(struct i2c_client *client);
+static int fscpos_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fscpos_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fscpos_remove(struct i2c_client *client);
 
 static int fscpos_read_value(struct i2c_client *client, u8 reg);
 static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value);
@@ -101,19 +103,27 @@ static void reset_fan_alarm(struct i2c_client *client, int nr);
 /*
  * Driver data (common to all clients)
  */
+static struct i2c_device_id fscpos_id[] = {
+	{ "fscpos", fscpos },
+	{ }
+};
+
 static struct i2c_driver fscpos_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "fscpos",
 	},
-	.attach_adapter	= fscpos_attach_adapter,
-	.detach_client	= fscpos_detach_client,
+	.probe		= fscpos_probe,
+	.remove		= fscpos_remove,
+	.id_table	= fscpos_id,
+	.detect		= fscpos_detect,
+	.address_data	= &addr_data,
 };
 
 /*
  * Client data (each client gets its own)
  */
 struct fscpos_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; 		/* 0 until following fields are valid */
@@ -470,39 +480,14 @@ static const struct attribute_group fscpos_group = {
 	.attrs = fscpos_attributes,
 };
 
-static int fscpos_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, fscpos_detect);
-}
-
-static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int fscpos_detect(struct i2c_client *new_client, int kind,
+			 struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct fscpos_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	/*
-	 * OK. For now, we presume we have a valid client. We now create the
-	 * client structure, even though we cannot fill it completely yet.
-	 * But it allows us to access fscpos_{read,write}_value.
-	 */
-
-	if (!(data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &fscpos_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Do the remaining detection unless force or force_fscpos parameter */
 	if (kind < 0) {
@@ -512,22 +497,30 @@ static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
 			!= 0x45) /* 'E' */
 		|| (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
 			!= 0x47))/* 'G' */
-		{
-			dev_dbg(&new_client->dev, "fscpos detection failed\n");
-			goto exit_free;
-		}
+			return -ENODEV;
 	}
 
-	/* Fill in the remaining client fields and put it in the global list */
-	strlcpy(new_client->name, "fscpos", I2C_NAME_SIZE);
+	strlcpy(info->type, "fscpos", I2C_NAME_SIZE);
 
+	return 0;
+}
+
+static int fscpos_probe(struct i2c_client *new_client,
+			const struct i2c_device_id *id)
+{
+	struct fscpos_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Inizialize the fscpos chip */
 	fscpos_init_client(new_client);
 
@@ -536,7 +529,7 @@ static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &fscpos_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -548,24 +541,19 @@ static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &fscpos_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int fscpos_detach_client(struct i2c_client *client)
+static int fscpos_remove(struct i2c_client *client)
 {
 	struct fscpos_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &fscpos_group);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
index 33e9e8a8d1ce..b6c10d13f525 100644
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -114,7 +114,6 @@ static inline u8 FAN_TO_REG(long rpm, int div)
 
 /* Each client has this additional data */
 struct gl518_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	enum chips type;
 
@@ -138,21 +137,33 @@ struct gl518_data {
 	u8 beep_enable;		/* Boolean */
 };
 
-static int gl518_attach_adapter(struct i2c_adapter *adapter);
-static int gl518_detect(struct i2c_adapter *adapter, int address, int kind);
+static int gl518_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int gl518_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
 static void gl518_init_client(struct i2c_client *client);
-static int gl518_detach_client(struct i2c_client *client);
+static int gl518_remove(struct i2c_client *client);
 static int gl518_read_value(struct i2c_client *client, u8 reg);
 static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
 static struct gl518_data *gl518_update_device(struct device *dev);
 
+static struct i2c_device_id gl518_id[] = {
+	{ "gl518sm", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl518_id);
+
 /* This is the driver that will be inserted */
 static struct i2c_driver gl518_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "gl518sm",
 	},
-	.attach_adapter	= gl518_attach_adapter,
-	.detach_client	= gl518_detach_client,
+	.probe		= gl518_probe,
+	.remove		= gl518_remove,
+	.id_table	= gl518_id,
+	.detect		= gl518_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -472,46 +483,23 @@ static const struct attribute_group gl518_group_r80 = {
  * Real code
  */
 
-static int gl518_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, gl518_detect);
-}
-
-static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int gl518_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info)
 {
+	struct i2c_adapter *adapter = client->adapter;
 	int i;
-	struct i2c_client *client;
-	struct gl518_data *data;
-	int err = 0;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 				     I2C_FUNC_SMBUS_WORD_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access gl518_{read,write}_value. */
-
-	if (!(data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &gl518_driver;
+		return -ENODEV;
 
 	/* Now, we do the remaining detection. */
 
 	if (kind < 0) {
 		if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80)
 		 || (gl518_read_value(client, GL518_REG_CONF) & 0x80))
-			goto exit_free;
+			return -ENODEV;
 	}
 
 	/* Determine the chip type. */
@@ -526,19 +514,32 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
 				dev_info(&adapter->dev,
 				    "Ignoring 'force' parameter for unknown "
 				    "chip at adapter %d, address 0x%02x\n",
-				    i2c_adapter_id(adapter), address);
-			goto exit_free;
+				    i2c_adapter_id(adapter), client->addr);
+			return -ENODEV;
 		}
 	}
 
-	/* Fill in the remaining client fields */
-	strlcpy(client->name, "gl518sm", I2C_NAME_SIZE);
-	data->type = kind;
-	mutex_init(&data->update_lock);
+	strlcpy(info->type, "gl518sm", I2C_NAME_SIZE);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
+	return 0;
+}
+
+static int gl518_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct gl518_data *data;
+	int err, revision;
+
+	data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	revision = gl518_read_value(client, GL518_REG_REVISION);
+	data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
+	mutex_init(&data->update_lock);
 
 	/* Initialize the GL518SM chip */
 	data->alarm_mask = 0xff;
@@ -546,7 +547,7 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&client->dev.kobj, &gl518_group)))
-		goto exit_detach;
+		goto exit_free;
 	if (data->type == gl518sm_r80)
 		if ((err = sysfs_create_group(&client->dev.kobj,
 					      &gl518_group_r80)))
@@ -564,8 +565,6 @@ exit_remove_files:
 	sysfs_remove_group(&client->dev.kobj, &gl518_group);
 	if (data->type == gl518sm_r80)
 		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
-exit_detach:
-	i2c_detach_client(client);
 exit_free:
 	kfree(data);
 exit:
@@ -591,19 +590,15 @@ static void gl518_init_client(struct i2c_client *client)
 	gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
 }
 
-static int gl518_detach_client(struct i2c_client *client)
+static int gl518_remove(struct i2c_client *client)
 {
 	struct gl518_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &gl518_group);
 	if (data->type == gl518sm_r80)
 		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c
index 8984ef141627..bd27a7790e83 100644
--- a/drivers/hwmon/gl520sm.c
+++ b/drivers/hwmon/gl520sm.c
@@ -79,26 +79,37 @@ static const u8 GL520_REG_TEMP_MAX_HYST[]	= { 0x06, 0x18 };
  * Function declarations
  */
 
-static int gl520_attach_adapter(struct i2c_adapter *adapter);
-static int gl520_detect(struct i2c_adapter *adapter, int address, int kind);
+static int gl520_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int gl520_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
 static void gl520_init_client(struct i2c_client *client);
-static int gl520_detach_client(struct i2c_client *client);
+static int gl520_remove(struct i2c_client *client);
 static int gl520_read_value(struct i2c_client *client, u8 reg);
 static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value);
 static struct gl520_data *gl520_update_device(struct device *dev);
 
 /* Driver data */
+static struct i2c_device_id gl520_id[] = {
+	{ "gl520sm", gl520sm },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl520_id);
+
 static struct i2c_driver gl520_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "gl520sm",
 	},
-	.attach_adapter	= gl520_attach_adapter,
-	.detach_client	= gl520_detach_client,
+	.probe		= gl520_probe,
+	.remove		= gl520_remove,
+	.id_table	= gl520_id,
+	.detect		= gl520_detect,
+	.address_data	= &addr_data,
 };
 
 /* Client data */
 struct gl520_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid;		/* zero until the following fields are valid */
@@ -669,37 +680,15 @@ static const struct attribute_group gl520_group_opt = {
  * Real code
  */
 
-static int gl520_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, gl520_detect);
-}
-
-static int gl520_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int gl520_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info)
 {
-	struct i2c_client *client;
-	struct gl520_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 				     I2C_FUNC_SMBUS_WORD_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access gl520_{read,write}_value. */
-
-	if (!(data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &gl520_driver;
+		return -ENODEV;
 
 	/* Determine the chip type. */
 	if (kind < 0) {
@@ -707,24 +696,36 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind)
 		    ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) ||
 		    ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) {
 			dev_dbg(&client->dev, "Unknown chip type, skipping\n");
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
-	/* Fill in the remaining client fields */
-	strlcpy(client->name, "gl520sm", I2C_NAME_SIZE);
-	mutex_init(&data->update_lock);
+	strlcpy(info->type, "gl520sm", I2C_NAME_SIZE);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
+	return 0;
+}
+
+static int gl520_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct gl520_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
 
 	/* Initialize the GL520SM chip */
 	gl520_init_client(client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	if (data->two_temps) {
 		if ((err = device_create_file(&client->dev,
@@ -764,8 +765,6 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_remove_files:
 	sysfs_remove_group(&client->dev.kobj, &gl520_group);
 	sysfs_remove_group(&client->dev.kobj, &gl520_group_opt);
-exit_detach:
-	i2c_detach_client(client);
 exit_free:
 	kfree(data);
 exit:
@@ -811,18 +810,14 @@ static void gl520_init_client(struct i2c_client *client)
 	gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
 }
 
-static int gl520_detach_client(struct i2c_client *client)
+static int gl520_remove(struct i2c_client *client)
 {
 	struct gl520_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &gl520_group);
 	sysfs_remove_group(&client->dev.kobj, &gl520_group_opt);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 116287008083..100398b2c112 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -1,7 +1,7 @@
 /*
  * lm63.c - driver for the National Semiconductor LM63 temperature sensor
  *          with integrated fan control
- * Copyright (C) 2004-2006  Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2004-2008  Jean Delvare <khali@linux-fr.org>
  * Based on the lm90 driver.
  *
  * The LM63 is a sensor chip made by National Semiconductor. It measures
@@ -128,24 +128,36 @@ I2C_CLIENT_INSMOD_1(lm63);
  * Functions declaration
  */
 
-static int lm63_attach_adapter(struct i2c_adapter *adapter);
-static int lm63_detach_client(struct i2c_client *client);
+static int lm63_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm63_remove(struct i2c_client *client);
 
 static struct lm63_data *lm63_update_device(struct device *dev);
 
-static int lm63_detect(struct i2c_adapter *adapter, int address, int kind);
+static int lm63_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
 static void lm63_init_client(struct i2c_client *client);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id lm63_id[] = {
+	{ "lm63", lm63 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm63_id);
+
 static struct i2c_driver lm63_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm63",
 	},
-	.attach_adapter	= lm63_attach_adapter,
-	.detach_client	= lm63_detach_client,
+	.probe		= lm63_probe,
+	.remove		= lm63_remove,
+	.id_table	= lm63_id,
+	.detect		= lm63_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -153,7 +165,6 @@ static struct i2c_driver lm63_driver = {
  */
 
 struct lm63_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -411,43 +422,14 @@ static const struct attribute_group lm63_group_fan1 = {
  * Real code
  */
 
-static int lm63_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm63_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
 {
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm63_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client *new_client;
-	struct lm63_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* The common I2C client data is placed right before the
-	   LM63-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &lm63_driver;
-	new_client->flags = 0;
-
-	/* Default to an LM63 if forced */
-	if (kind == 0)
-		kind = lm63;
+		return -ENODEV;
 
 	if (kind < 0) { /* must identify */
 		u8 man_id, chip_id, reg_config1, reg_config2;
@@ -477,25 +459,38 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_dbg(&adapter->dev, "Unsupported chip "
 				"(man_id=0x%02X, chip_id=0x%02X).\n",
 				man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
-	strlcpy(new_client->name, "lm63", I2C_NAME_SIZE);
+	strlcpy(info->type, "lm63", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm63_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm63_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Initialize the LM63 chip */
 	lm63_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj,
 				      &lm63_group)))
-		goto exit_detach;
+		goto exit_free;
 	if (data->config & 0x04) { /* tachometer enabled */
 		if ((err = sysfs_create_group(&new_client->dev.kobj,
 					      &lm63_group_fan1)))
@@ -513,8 +508,6 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
 	sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
@@ -556,18 +549,14 @@ static void lm63_init_client(struct i2c_client *client)
 		(data->config_fan & 0x20) ? "manual" : "auto");
 }
 
-static int lm63_detach_client(struct i2c_client *client)
+static int lm63_remove(struct i2c_client *client)
 {
 	struct lm63_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm63_group);
 	sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c
index 36d5a8c3ad8c..cc5abc7c9f0c 100644
--- a/drivers/hwmon/lm77.c
+++ b/drivers/hwmon/lm77.c
@@ -52,7 +52,6 @@ I2C_CLIENT_INSMOD_1(lm77);
 
 /* Each client has this additional data */
 struct lm77_data {
-	struct i2c_client	client;
 	struct device 		*hwmon_dev;
 	struct mutex		update_lock;
 	char			valid;
@@ -65,23 +64,35 @@ struct lm77_data {
 	u8			alarms;
 };
 
-static int lm77_attach_adapter(struct i2c_adapter *adapter);
-static int lm77_detect(struct i2c_adapter *adapter, int address, int kind);
+static int lm77_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm77_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
 static void lm77_init_client(struct i2c_client *client);
-static int lm77_detach_client(struct i2c_client *client);
+static int lm77_remove(struct i2c_client *client);
 static u16 lm77_read_value(struct i2c_client *client, u8 reg);
 static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
 
 static struct lm77_data *lm77_update_device(struct device *dev);
 
 
+static struct i2c_device_id lm77_id[] = {
+	{ "lm77", lm77 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm77_id);
+
 /* This is the driver that will be inserted */
 static struct i2c_driver lm77_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm77",
 	},
-	.attach_adapter = lm77_attach_adapter,
-	.detach_client	= lm77_detach_client,
+	.probe		= lm77_probe,
+	.remove		= lm77_remove,
+	.id_table	= lm77_id,
+	.detect		= lm77_detect,
+	.address_data	= &addr_data,
 };
 
 /* straight from the datasheet */
@@ -215,13 +226,6 @@ static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
 
-static int lm77_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm77_detect);
-}
-
 static struct attribute *lm77_attributes[] = {
 	&dev_attr_temp1_input.attr,
 	&dev_attr_temp1_crit.attr,
@@ -240,32 +244,15 @@ static const struct attribute_group lm77_group = {
 	.attrs = lm77_attributes,
 };
 
-/* This function is called by i2c_probe */
-static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm77_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct lm77_data *data;
-	int err = 0;
-	const char *name = "";
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 				     I2C_FUNC_SMBUS_WORD_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access lm77_{read,write}_value. */
-	if (!(data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &lm77_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Here comes the remaining detection.  Since the LM77 has no
 	   register dedicated to identification, we have to rely on the
@@ -294,7 +281,7 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
 			    || i2c_smbus_read_word_data(new_client, i + 3) != crit
 			    || i2c_smbus_read_word_data(new_client, i + 4) != min
 			    || i2c_smbus_read_word_data(new_client, i + 5) != max)
-				goto exit_free;
+				return -ENODEV;
 
 		/* sign bits */
 		if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0)
@@ -302,51 +289,55 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
 		    || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0)
 		    || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0)
 		    || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0))
-			goto exit_free;
+			return -ENODEV;
 
 		/* unused bits */
 		if (conf & 0xe0)
-			goto exit_free;
+			return -ENODEV;
 
 		/* 0x06 and 0x07 return the last read value */
 		cur = i2c_smbus_read_word_data(new_client, 0);
 		if (i2c_smbus_read_word_data(new_client, 6) != cur
 		    || i2c_smbus_read_word_data(new_client, 7) != cur)
-			goto exit_free;
+			return -ENODEV;
 		hyst = i2c_smbus_read_word_data(new_client, 2);
 		if (i2c_smbus_read_word_data(new_client, 6) != hyst
 		    || i2c_smbus_read_word_data(new_client, 7) != hyst)
-			goto exit_free;
+			return -ENODEV;
 		min = i2c_smbus_read_word_data(new_client, 4);
 		if (i2c_smbus_read_word_data(new_client, 6) != min
 		    || i2c_smbus_read_word_data(new_client, 7) != min)
-			goto exit_free;
+			return -ENODEV;
 
 	}
 
-	/* Determine the chip type - only one kind supported! */
-	if (kind <= 0)
-		kind = lm77;
+	strlcpy(info->type, "lm77", I2C_NAME_SIZE);
 
-	if (kind == lm77) {
-		name = "lm77";
+	return 0;
+}
+
+static int lm77_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm77_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
 	}
 
-	/* Fill in the remaining client fields and put it into the global list */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Initialize the LM77 chip */
 	lm77_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm77_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -358,20 +349,17 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove:
 	sysfs_remove_group(&new_client->dev.kobj, &lm77_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int lm77_detach_client(struct i2c_client *client)
+static int lm77_remove(struct i2c_client *client)
 {
 	struct lm77_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm77_group);
-	i2c_detach_client(client);
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
index 26c91c9d4769..37a3169a4c04 100644
--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -108,7 +108,6 @@ static inline long TEMP_FROM_REG(u16 temp)
  */
 
 struct lm80_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
@@ -132,10 +131,12 @@ struct lm80_data {
  * Functions declaration
  */
 
-static int lm80_attach_adapter(struct i2c_adapter *adapter);
-static int lm80_detect(struct i2c_adapter *adapter, int address, int kind);
+static int lm80_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm80_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
 static void lm80_init_client(struct i2c_client *client);
-static int lm80_detach_client(struct i2c_client *client);
+static int lm80_remove(struct i2c_client *client);
 static struct lm80_data *lm80_update_device(struct device *dev);
 static int lm80_read_value(struct i2c_client *client, u8 reg);
 static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
@@ -144,12 +145,22 @@ static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id lm80_id[] = {
+	{ "lm80", lm80 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm80_id);
+
 static struct i2c_driver lm80_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm80",
 	},
-	.attach_adapter	= lm80_attach_adapter,
-	.detach_client	= lm80_detach_client,
+	.probe		= lm80_probe,
+	.remove		= lm80_remove,
+	.id_table	= lm80_id,
+	.detect		= lm80_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -383,13 +394,6 @@ static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 13);
  * Real code
  */
 
-static int lm80_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm80_detect);
-}
-
 static struct attribute *lm80_attributes[] = {
 	&sensor_dev_attr_in0_min.dev_attr.attr,
 	&sensor_dev_attr_in1_min.dev_attr.attr,
@@ -442,53 +446,46 @@ static const struct attribute_group lm80_group = {
 	.attrs = lm80_attributes,
 };
 
-static int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm80_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info)
 {
+	struct i2c_adapter *adapter = client->adapter;
 	int i, cur;
-	struct i2c_client *client;
-	struct lm80_data *data;
-	int err = 0;
-	const char *name;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access lm80_{read,write}_value. */
-	if (!(data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &lm80_driver;
+		return -ENODEV;
 
 	/* Now, we do the remaining detection. It is lousy. */
 	if (lm80_read_value(client, LM80_REG_ALARM2) & 0xc0)
-		goto error_free;
+		return -ENODEV;
 	for (i = 0x2a; i <= 0x3d; i++) {
 		cur = i2c_smbus_read_byte_data(client, i);
 		if ((i2c_smbus_read_byte_data(client, i + 0x40) != cur)
 		 || (i2c_smbus_read_byte_data(client, i + 0x80) != cur)
 		 || (i2c_smbus_read_byte_data(client, i + 0xc0) != cur))
-		    goto error_free;
+		    return -ENODEV;
 	}
 
-	/* Determine the chip type - only one kind supported! */
-	kind = lm80;
-	name = "lm80";
+	strlcpy(info->type, "lm80", I2C_NAME_SIZE);
 
-	/* Fill in the remaining client fields */
-	strlcpy(client->name, name, I2C_NAME_SIZE);
-	mutex_init(&data->update_lock);
+	return 0;
+}
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto error_free;
+static int lm80_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id)
+{
+	struct lm80_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
 
 	/* Initialize the LM80 chip */
 	lm80_init_client(client);
@@ -499,7 +496,7 @@ static int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&client->dev.kobj, &lm80_group)))
-		goto error_detach;
+		goto error_free;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -511,23 +508,18 @@ static int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
 
 error_remove:
 	sysfs_remove_group(&client->dev.kobj, &lm80_group);
-error_detach:
-	i2c_detach_client(client);
 error_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int lm80_detach_client(struct i2c_client *client)
+static int lm80_remove(struct i2c_client *client)
 {
 	struct lm80_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm80_group);
-	if ((err = i2c_detach_client(client)))
-		return err;
 
 	kfree(data);
 	return 0;
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
index 6a8642fa25fb..8872ab25630c 100644
--- a/drivers/hwmon/lm83.c
+++ b/drivers/hwmon/lm83.c
@@ -1,7 +1,7 @@
 /*
  * lm83.c - Part of lm_sensors, Linux kernel modules for hardware
  *          monitoring
- * Copyright (C) 2003-2006  Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2003-2008  Jean Delvare <khali@linux-fr.org>
  *
  * Heavily inspired from the lm78, lm75 and adm1021 drivers. The LM83 is
  * a sensor chip made by National Semiconductor. It reports up to four
@@ -118,21 +118,34 @@ static const u8 LM83_REG_W_HIGH[] = {
  * Functions declaration
  */
 
-static int lm83_attach_adapter(struct i2c_adapter *adapter);
-static int lm83_detect(struct i2c_adapter *adapter, int address, int kind);
-static int lm83_detach_client(struct i2c_client *client);
+static int lm83_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info);
+static int lm83_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm83_remove(struct i2c_client *client);
 static struct lm83_data *lm83_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
  
+static struct i2c_device_id lm83_id[] = {
+	{ "lm83", lm83 },
+	{ "lm82", lm82 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm83_id);
+
 static struct i2c_driver lm83_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm83",
 	},
-	.attach_adapter	= lm83_attach_adapter,
-	.detach_client	= lm83_detach_client,
+	.probe		= lm83_probe,
+	.remove		= lm83_remove,
+	.id_table	= lm83_id,
+	.detect		= lm83_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -140,7 +153,6 @@ static struct i2c_driver lm83_driver = {
  */
 
 struct lm83_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -278,40 +290,15 @@ static const struct attribute_group lm83_group_opt = {
  * Real code
  */
 
-static int lm83_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm83_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
 {
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm83_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client *new_client;
-	struct lm83_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = new_client->adapter;
 	const char *name = "";
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* The common I2C client data is placed right after the
-	 * LM83-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &lm83_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Now we do the detection and identification. A negative kind
 	 * means that the driver was loaded with no force parameter
@@ -335,8 +322,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 		    ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_CONFIG)
 		    & 0x41) != 0x00)) {
 			dev_dbg(&adapter->dev,
-			    "LM83 detection failed at 0x%02x.\n", address);
-			goto exit_free;
+				"LM83 detection failed at 0x%02x.\n",
+				new_client->addr);
+			return -ENODEV;
 		}
 	}
 
@@ -361,7 +349,7 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_info(&adapter->dev,
 			    "Unsupported chip (man_id=0x%02X, "
 			    "chip_id=0x%02X).\n", man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
@@ -372,15 +360,27 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 		name = "lm82";
 	}
 
-	/* We can fill in the remaining client fields */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm83_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm83_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/*
 	 * Register sysfs hooks
 	 * The LM82 can only monitor one external diode which is
@@ -389,9 +389,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 	 */
 
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm83_group)))
-		goto exit_detach;
+		goto exit_free;
 
-	if (kind == lm83) {
+	if (id->driver_data == lm83) {
 		if ((err = sysfs_create_group(&new_client->dev.kobj,
 					      &lm83_group_opt)))
 			goto exit_remove_files;
@@ -408,26 +408,20 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &lm83_group);
 	sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int lm83_detach_client(struct i2c_client *client)
+static int lm83_remove(struct i2c_client *client)
 {
 	struct lm83_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm83_group);
 	sysfs_remove_group(&client->dev.kobj, &lm83_group_opt);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index d1a3da3dd8e0..9464d5fdc816 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -187,23 +187,40 @@ I2C_CLIENT_INSMOD_7(lm90, adm1032, lm99, lm86, max6657, adt7461, max6680);
  * Functions declaration
  */
 
-static int lm90_attach_adapter(struct i2c_adapter *adapter);
-static int lm90_detect(struct i2c_adapter *adapter, int address,
-	int kind);
+static int lm90_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static int lm90_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
 static void lm90_init_client(struct i2c_client *client);
-static int lm90_detach_client(struct i2c_client *client);
+static int lm90_remove(struct i2c_client *client);
 static struct lm90_data *lm90_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id lm90_id[] = {
+	{ "lm90", lm90 },
+	{ "adm1032", adm1032 },
+	{ "lm99", lm99 },
+	{ "lm86", lm86 },
+	{ "max6657", max6657 },
+	{ "adt7461", adt7461 },
+	{ "max6680", max6680 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm90_id);
+
 static struct i2c_driver lm90_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm90",
 	},
-	.attach_adapter	= lm90_attach_adapter,
-	.detach_client	= lm90_detach_client,
+	.probe		= lm90_probe,
+	.remove		= lm90_remove,
+	.id_table	= lm90_id,
+	.detect		= lm90_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -211,7 +228,6 @@ static struct i2c_driver lm90_driver = {
  */
 
 struct lm90_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -477,40 +493,16 @@ static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value)
 	return 0;
 }
 
-static int lm90_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm90_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm90_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct lm90_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = new_client->adapter;
+	int address = new_client->addr;
 	const char *name = "";
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* The common I2C client data is placed right before the
-	   LM90-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &lm90_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/*
 	 * Now we do the remaining detection. A negative kind means that
@@ -538,7 +530,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 						LM90_REG_R_CONFIG1)) < 0
 		 || (reg_convrate = i2c_smbus_read_byte_data(new_client,
 						LM90_REG_R_CONVRATE)) < 0)
-			goto exit_free;
+			return -ENODEV;
 		
 		if ((address == 0x4C || address == 0x4D)
 		 && man_id == 0x01) { /* National Semiconductor */
@@ -546,7 +538,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 
 			if ((reg_config2 = i2c_smbus_read_byte_data(new_client,
 						LM90_REG_R_CONFIG2)) < 0)
-				goto exit_free;
+				return -ENODEV;
 
 			if ((reg_config1 & 0x2A) == 0x00
 			 && (reg_config2 & 0xF8) == 0x00
@@ -610,10 +602,11 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_info(&adapter->dev,
 			    "Unsupported chip (man_id=0x%02X, "
 			    "chip_id=0x%02X).\n", man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
+	/* Fill the i2c board info */
 	if (kind == lm90) {
 		name = "lm90";
 	} else if (kind == adm1032) {
@@ -621,7 +614,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 		/* The ADM1032 supports PEC, but only if combined
 		   transactions are not used. */
 		if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
-			new_client->flags |= I2C_CLIENT_PEC;
+			info->flags |= I2C_CLIENT_PEC;
 	} else if (kind == lm99) {
 		name = "lm99";
 	} else if (kind == lm86) {
@@ -633,23 +626,39 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 	} else if (kind == adt7461) {
 		name = "adt7461";
 	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm90_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(new_client->dev.parent);
+	struct lm90_data *data;
+	int err;
 
-	/* We can fill in the remaining client fields */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
-	data->valid = 0;
-	data->kind = kind;
+	data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+	i2c_set_clientdata(new_client, data);
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
+	/* Set the device type */
+	data->kind = id->driver_data;
+	if (data->kind == adm1032) {
+		if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+			new_client->flags &= ~I2C_CLIENT_PEC;
+	}
 
 	/* Initialize the LM90 chip */
 	lm90_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group)))
-		goto exit_detach;
+		goto exit_free;
 	if (new_client->flags & I2C_CLIENT_PEC) {
 		if ((err = device_create_file(&new_client->dev,
 					      &dev_attr_pec)))
@@ -672,8 +681,6 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &lm90_group);
 	device_remove_file(&new_client->dev, &dev_attr_pec);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
@@ -710,10 +717,9 @@ static void lm90_init_client(struct i2c_client *client)
 		i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
 }
 
-static int lm90_detach_client(struct i2c_client *client)
+static int lm90_remove(struct i2c_client *client)
 {
 	struct lm90_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm90_group);
@@ -722,9 +728,6 @@ static int lm90_detach_client(struct i2c_client *client)
 		device_remove_file(&client->dev,
 				   &sensor_dev_attr_temp2_offset.dev_attr);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c
index c31942e08246..391e4e72fbc0 100644
--- a/drivers/hwmon/lm92.c
+++ b/drivers/hwmon/lm92.c
@@ -1,6 +1,6 @@
 /*
  * lm92 - Hardware monitoring driver
- * Copyright (C) 2005  Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2005-2008  Jean Delvare <khali@linux-fr.org>
  *
  * Based on the lm90 driver, with some ideas taken from the lm_sensors
  * lm92 driver as well.
@@ -96,7 +96,6 @@ static struct i2c_driver lm92_driver;
 
 /* Client data (each client gets its own) */
 struct lm92_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -319,32 +318,15 @@ static const struct attribute_group lm92_group = {
 	.attrs = lm92_attributes,
 };
 
-/* The following function does more than just detection. If detection
-   succeeds, it also registers the new chip. */
-static int lm92_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm92_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct lm92_data *data;
-	int err = 0;
-	char *name;
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
 					    | I2C_FUNC_SMBUS_WORD_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* Fill in enough client fields so that we can read from the chip,
-	   which is required for identication */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &lm92_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* A negative kind means that the driver was loaded with no force
 	   parameter (default), so we must identify the chip. */
@@ -364,34 +346,36 @@ static int lm92_detect(struct i2c_adapter *adapter, int address, int kind)
 			kind = lm92; /* No separate prefix */
 		}
 		else
-			goto exit_free;
-	} else
-	if (kind == 0) /* Default to an LM92 if forced */
-		kind = lm92;
-
-	/* Give it the proper name */
-	if (kind == lm92) {
-		name = "lm92";
-	} else { /* Supposedly cannot happen */
-		dev_dbg(&new_client->dev, "Kind out of range?\n");
-		goto exit_free;
+			return -ENODEV;
 	}
 
-	/* Fill in the remaining client fields */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
+	strlcpy(info->type, "lm92", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm92_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm92_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the i2c subsystem a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Initialize the chipset */
 	lm92_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm92_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -403,32 +387,19 @@ static int lm92_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove:
 	sysfs_remove_group(&new_client->dev.kobj, &lm92_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int lm92_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, lm92_detect);
-}
-
-static int lm92_detach_client(struct i2c_client *client)
+static int lm92_remove(struct i2c_client *client)
 {
 	struct lm92_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm92_group);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
@@ -438,12 +409,23 @@ static int lm92_detach_client(struct i2c_client *client)
  * Module and driver stuff
  */
 
+static struct i2c_device_id lm92_id[] = {
+	{ "lm92", lm92 },
+	/* max6635 could be added here */
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm92_id);
+
 static struct i2c_driver lm92_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm92",
 	},
-	.attach_adapter	= lm92_attach_adapter,
-	.detach_client	= lm92_detach_client,
+	.probe		= lm92_probe,
+	.remove		= lm92_remove,
+	.id_table	= lm92_id,
+	.detect		= lm92_detect,
+	.address_data	= &addr_data,
 };
 
 static int __init sensors_lm92_init(void)
diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c
index 5e678f5c883d..fc8e8ede62fc 100644
--- a/drivers/hwmon/lm93.c
+++ b/drivers/hwmon/lm93.c
@@ -200,7 +200,6 @@ struct block1_t {
  * Client-specific data
  */
 struct lm93_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 
 	struct mutex update_lock;
@@ -2501,45 +2500,14 @@ static void lm93_init_client(struct i2c_client *client)
 		 "chip to signal ready!\n");
 }
 
-static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm93_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info)
 {
-	struct lm93_data *data;
-	struct i2c_client *client;
-
-	int err = -ENODEV, func;
-	void (*update)(struct lm93_data *, struct i2c_client *);
-
-	/* choose update routine based on bus capabilities */
-	func = i2c_get_functionality(adapter);
-	if ( ((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
-			(!disable_block) ) {
-		dev_dbg(&adapter->dev,"using SMBus block data transactions\n");
-		update = lm93_update_client_full;
-	} else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
-		dev_dbg(&adapter->dev,"disabled SMBus block data "
-			"transactions\n");
-		update = lm93_update_client_min;
-	} else {
-		dev_dbg(&adapter->dev,"detect failed, "
-			"smbus byte and/or word data not supported!\n");
-		goto err_out;
-	}
+	struct i2c_adapter *adapter = client->adapter;
 
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access lm78_{read,write}_value. */
-
-	if ( !(data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL))) {
-		dev_dbg(&adapter->dev,"out of memory!\n");
-		err = -ENOMEM;
-		goto err_out;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &lm93_driver;
+	if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
+		return -ENODEV;
 
 	/* detection */
 	if (kind < 0) {
@@ -2548,7 +2516,7 @@ static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
 		if (mfr != 0x01) {
 			dev_dbg(&adapter->dev,"detect failed, "
 				"bad manufacturer id 0x%02x!\n", mfr);
-			goto err_free;
+			return -ENODEV;
 		}
 	}
 
@@ -2563,31 +2531,61 @@ static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
 			if (kind == 0)
 				dev_dbg(&adapter->dev,
 					"(ignored 'force' parameter)\n");
-			goto err_free;
+			return -ENODEV;
 		}
 	}
 
-	/* fill in remaining client fields */
-	strlcpy(client->name, "lm93", I2C_NAME_SIZE);
+	strlcpy(info->type, "lm93", I2C_NAME_SIZE);
 	dev_dbg(&adapter->dev,"loading %s at %d,0x%02x\n",
 		client->name, i2c_adapter_id(client->adapter),
 		client->addr);
 
+	return 0;
+}
+
+static int lm93_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id)
+{
+	struct lm93_data *data;
+	int err, func;
+	void (*update)(struct lm93_data *, struct i2c_client *);
+
+	/* choose update routine based on bus capabilities */
+	func = i2c_get_functionality(client->adapter);
+	if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
+			(!disable_block)) {
+		dev_dbg(&client->dev, "using SMBus block data transactions\n");
+		update = lm93_update_client_full;
+	} else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
+		dev_dbg(&client->dev, "disabled SMBus block data "
+			"transactions\n");
+		update = lm93_update_client_min;
+	} else {
+		dev_dbg(&client->dev, "detect failed, "
+			"smbus byte and/or word data not supported!\n");
+		err = -ENODEV;
+		goto err_out;
+	}
+
+	data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL);
+	if (!data) {
+		dev_dbg(&client->dev, "out of memory!\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+	i2c_set_clientdata(client, data);
+
 	/* housekeeping */
 	data->valid = 0;
 	data->update = update;
 	mutex_init(&data->update_lock);
 
-	/* tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto err_free;
-
 	/* initialize the chip */
 	lm93_init_client(client);
 
 	err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
 	if (err)
-		goto err_detach;
+		goto err_free;
 
 	/* Register hwmon driver class */
 	data->hwmon_dev = hwmon_device_register(&client->dev);
@@ -2597,43 +2595,39 @@ static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
 	err = PTR_ERR(data->hwmon_dev);
 	dev_err(&client->dev, "error registering hwmon device.\n");
 	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
-err_detach:
-	i2c_detach_client(client);
 err_free:
 	kfree(data);
 err_out:
 	return err;
 }
 
-/* This function is called when:
-     * lm93_driver is inserted (when this module is loaded), for each
-       available adapter
-     * when a new adapter is inserted (and lm93_driver is still present) */
-static int lm93_attach_adapter(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, lm93_detect);
-}
-
-static int lm93_detach_client(struct i2c_client *client)
+static int lm93_remove(struct i2c_client *client)
 {
 	struct lm93_data *data = i2c_get_clientdata(client);
-	int err = 0;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
 
-	err = i2c_detach_client(client);
-	if (!err)
-		kfree(data);
-	return err;
+	kfree(data);
+	return 0;
 }
 
+static struct i2c_device_id lm93_id[] = {
+	{ "lm93", lm93 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm93_id);
+
 static struct i2c_driver lm93_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm93",
 	},
-	.attach_adapter	= lm93_attach_adapter,
-	.detach_client	= lm93_detach_client,
+	.probe		= lm93_probe,
+	.remove		= lm93_remove,
+	.id_table	= lm93_id,
+	.detect		= lm93_detect,
+	.address_data	= &addr_data,
 };
 
 static int __init lm93_init(void)
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c
index 7e7267a04544..1926d9a79b9b 100644
--- a/drivers/hwmon/max1619.c
+++ b/drivers/hwmon/max1619.c
@@ -79,23 +79,34 @@ I2C_CLIENT_INSMOD_1(max1619);
  * Functions declaration
  */
 
-static int max1619_attach_adapter(struct i2c_adapter *adapter);
-static int max1619_detect(struct i2c_adapter *adapter, int address,
-	int kind);
+static int max1619_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max1619_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
 static void max1619_init_client(struct i2c_client *client);
-static int max1619_detach_client(struct i2c_client *client);
+static int max1619_remove(struct i2c_client *client);
 static struct max1619_data *max1619_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id max1619_id[] = {
+	{ "max1619", max1619 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max1619_id);
+
 static struct i2c_driver max1619_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max1619",
 	},
-	.attach_adapter	= max1619_attach_adapter,
-	.detach_client	= max1619_detach_client,
+	.probe		= max1619_probe,
+	.remove		= max1619_remove,
+	.id_table	= max1619_id,
+	.detect		= max1619_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -103,7 +114,6 @@ static struct i2c_driver max1619_driver = {
  */
 
 struct max1619_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -208,41 +218,15 @@ static const struct attribute_group max1619_group = {
  * Real code
  */
 
-static int max1619_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, max1619_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int max1619_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max1619_detect(struct i2c_client *new_client, int kind,
+			  struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct max1619_data *data;
-	int err = 0;
-	const char *name = "";	
+	struct i2c_adapter *adapter = new_client->adapter;
 	u8 reg_config=0, reg_convrate=0, reg_status=0;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* The common I2C client data is placed right before the
-	   MAX1619-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &max1619_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/*
 	 * Now we do the remaining detection. A negative kind means that
@@ -265,8 +249,8 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind)
 		 || reg_convrate > 0x07 || (reg_status & 0x61 ) !=0x00) {
 			dev_dbg(&adapter->dev,
 				"MAX1619 detection failed at 0x%02x.\n",
-				address);
-			goto exit_free;
+				new_client->addr);
+			return -ENODEV;
 		}
 	}
 
@@ -285,28 +269,37 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_info(&adapter->dev,
 			    "Unsupported chip (man_id=0x%02X, "
 			    "chip_id=0x%02X).\n", man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
-	if (kind == max1619)
-		name = "max1619";
+	strlcpy(info->type, "max1619", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max1619_probe(struct i2c_client *new_client,
+			 const struct i2c_device_id *id)
+{
+	struct max1619_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
 
-	/* We can fill in the remaining client fields */
-	strlcpy(new_client->name, name, I2C_NAME_SIZE);
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Initialize the MAX1619 chip */
 	max1619_init_client(new_client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&new_client->dev.kobj, &max1619_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -318,8 +311,6 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind)
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &max1619_group);
-exit_detach:
-	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
@@ -341,17 +332,13 @@ static void max1619_init_client(struct i2c_client *client)
 					  config & 0xBF); /* run */
 }
 
-static int max1619_detach_client(struct i2c_client *client)
+static int max1619_remove(struct i2c_client *client)
 {
 	struct max1619_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &max1619_group);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 	return 0;
 }
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index 52d528b76cc3..40e7ba35e4ef 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -104,22 +104,34 @@ I2C_CLIENT_INSMOD_1(max6650);
 
 #define DIV_FROM_REG(reg) (1 << (reg & 7))
 
-static int max6650_attach_adapter(struct i2c_adapter *adapter);
-static int max6650_detect(struct i2c_adapter *adapter, int address, int kind);
+static int max6650_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max6650_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
 static int max6650_init_client(struct i2c_client *client);
-static int max6650_detach_client(struct i2c_client *client);
+static int max6650_remove(struct i2c_client *client);
 static struct max6650_data *max6650_update_device(struct device *dev);
 
 /*
  * Driver data (common to all clients)
  */
 
+static struct i2c_device_id max6650_id[] = {
+	{ "max6650", max6650 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max6650_id);
+
 static struct i2c_driver max6650_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max6650",
 	},
-	.attach_adapter	= max6650_attach_adapter,
-	.detach_client	= max6650_detach_client,
+	.probe		= max6650_probe,
+	.remove		= max6650_remove,
+	.id_table	= max6650_id,
+	.detect		= max6650_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -128,7 +140,6 @@ static struct i2c_driver max6650_driver = {
 
 struct max6650_data
 {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -437,47 +448,21 @@ static struct attribute_group max6650_attr_grp = {
  * Real code
  */
 
-static int max6650_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max6650_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	if (!(adapter->class & I2C_CLASS_HWMON)) {
-		dev_dbg(&adapter->dev,
-			"FATAL: max6650_attach_adapter class HWMON not set\n");
-		return 0;
-	}
-
-	return i2c_probe(adapter, &addr_data, max6650_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-
-static int max6650_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client *client;
-	struct max6650_data *data;
-	int err = -ENODEV;
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
 
 	dev_dbg(&adapter->dev, "max6650_detect called, kind = %d\n", kind);
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
 		dev_dbg(&adapter->dev, "max6650: I2C bus doesn't support "
 					"byte read mode, skipping.\n");
-		return 0;
-	}
-
-	if (!(data = kzalloc(sizeof(struct max6650_data), GFP_KERNEL))) {
-		dev_err(&adapter->dev, "max6650: out of memory.\n");
-		return -ENOMEM;
+		return -ENODEV;
 	}
 
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &max6650_driver;
-
 	/*
 	 * Now we do the remaining detection. A negative kind means that
 	 * the driver was loaded with no force parameter (default), so we
@@ -501,28 +486,40 @@ static int max6650_detect(struct i2c_adapter *adapter, int address, int kind)
 	    ||(i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT) & 0xFC))) {
 		dev_dbg(&adapter->dev,
 			"max6650: detection failed at 0x%02x.\n", address);
-		goto err_free;
+		return -ENODEV;
 	}
 
 	dev_info(&adapter->dev, "max6650: chip found at 0x%02x.\n", address);
 
-	strlcpy(client->name, "max6650", I2C_NAME_SIZE);
-	mutex_init(&data->update_lock);
+	strlcpy(info->type, "max6650", I2C_NAME_SIZE);
 
-	if ((err = i2c_attach_client(client))) {
-		dev_err(&adapter->dev, "max6650: failed to attach client.\n");
-		goto err_free;
+	return 0;
+}
+
+static int max6650_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct max6650_data *data;
+	int err;
+
+	if (!(data = kzalloc(sizeof(struct max6650_data), GFP_KERNEL))) {
+		dev_err(&client->dev, "out of memory.\n");
+		return -ENOMEM;
 	}
 
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
 	/*
 	 * Initialize the max6650 chip
 	 */
-	if (max6650_init_client(client))
-		goto err_detach;
+	err = max6650_init_client(client);
+	if (err)
+		goto err_free;
 
 	err = sysfs_create_group(&client->dev.kobj, &max6650_attr_grp);
 	if (err)
-		goto err_detach;
+		goto err_free;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (!IS_ERR(data->hwmon_dev))
@@ -531,24 +528,19 @@ static int max6650_detect(struct i2c_adapter *adapter, int address, int kind)
 	err = PTR_ERR(data->hwmon_dev);
 	dev_err(&client->dev, "error registering hwmon device.\n");
 	sysfs_remove_group(&client->dev.kobj, &max6650_attr_grp);
-err_detach:
-	i2c_detach_client(client);
 err_free:
 	kfree(data);
 	return err;
 }
 
-static int max6650_detach_client(struct i2c_client *client)
+static int max6650_remove(struct i2c_client *client)
 {
 	struct max6650_data *data = i2c_get_clientdata(client);
-	int err;
 
 	sysfs_remove_group(&client->dev.kobj, &max6650_attr_grp);
 	hwmon_device_unregister(data->hwmon_dev);
-	err = i2c_detach_client(client);
-	if (!err)
-		kfree(data);
-	return err;
+	kfree(data);
+	return 0;
 }
 
 static int max6650_init_client(struct i2c_client *client)
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index 3c9db6598ba7..d2b7a0974261 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -96,7 +96,6 @@ static inline int TEMP_FROM_REG(s8 val)
 }
 
 struct smsc47m192_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
@@ -114,18 +113,29 @@ struct smsc47m192_data {
 	u8 vrm;
 };
 
-static int smsc47m192_attach_adapter(struct i2c_adapter *adapter);
-static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
-		int kind);
-static int smsc47m192_detach_client(struct i2c_client *client);
+static int smsc47m192_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id);
+static int smsc47m192_detect(struct i2c_client *client, int kind,
+			     struct i2c_board_info *info);
+static int smsc47m192_remove(struct i2c_client *client);
 static struct smsc47m192_data *smsc47m192_update_device(struct device *dev);
 
+static struct i2c_device_id smsc47m192_id[] = {
+	{ "smsc47m192", smsc47m192 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, smsc47m192_id);
+
 static struct i2c_driver smsc47m192_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "smsc47m192",
 	},
-	.attach_adapter	= smsc47m192_attach_adapter,
-	.detach_client	= smsc47m192_detach_client,
+	.probe		= smsc47m192_probe,
+	.remove		= smsc47m192_remove,
+	.id_table	= smsc47m192_id,
+	.detect		= smsc47m192_detect,
+	.address_data	= &addr_data,
 };
 
 /* Voltages */
@@ -440,17 +450,6 @@ static const struct attribute_group smsc47m192_group_in4 = {
 	.attrs = smsc47m192_attributes_in4,
 };
 
-/* This function is called when:
-    * smsc47m192_driver is inserted (when this module is loaded), for each
-      available adapter
-    * when a new adapter is inserted (and smsc47m192_driver is still present) */
-static int smsc47m192_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, smsc47m192_detect);
-}
-
 static void smsc47m192_init_client(struct i2c_client *client)
 {
 	int i;
@@ -481,31 +480,15 @@ static void smsc47m192_init_client(struct i2c_client *client)
 	}
 }
 
-/* This function is called by i2c_probe */
-static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
-		int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int smsc47m192_detect(struct i2c_client *client, int kind,
+			     struct i2c_board_info *info)
 {
-	struct i2c_client *client;
-	struct smsc47m192_data *data;
-	int err = 0;
-	int version, config;
+	struct i2c_adapter *adapter = client->adapter;
+	int version;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct smsc47m192_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &smsc47m192_driver;
-
-	if (kind == 0)
-		kind = smsc47m192;
+		return -ENODEV;
 
 	/* Detection criteria from sensors_detect script */
 	if (kind < 0) {
@@ -523,26 +506,39 @@ static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
 		} else {
 			dev_dbg(&adapter->dev,
 				"SMSC47M192 detection failed at 0x%02x\n",
-				address);
-			goto exit_free;
+				client->addr);
+			return -ENODEV;
 		}
 	}
 
-	/* Fill in the remaining client fields and put into the global list */
-	strlcpy(client->name, "smsc47m192", I2C_NAME_SIZE);
+	strlcpy(info->type, "smsc47m192", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int smsc47m192_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id)
+{
+	struct smsc47m192_data *data;
+	int config;
+	int err;
+
+	data = kzalloc(sizeof(struct smsc47m192_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
 	data->vrm = vid_which_vrm();
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
-
 	/* Initialize the SMSC47M192 chip */
 	smsc47m192_init_client(client);
 
 	/* Register sysfs hooks */
 	if ((err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group)))
-		goto exit_detach;
+		goto exit_free;
 
 	/* Pin 110 is either in4 (+12V) or VID4 */
 	config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
@@ -563,26 +559,20 @@ static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
 exit_remove_files:
 	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
 	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
-exit_detach:
-	i2c_detach_client(client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int smsc47m192_detach_client(struct i2c_client *client)
+static int smsc47m192_remove(struct i2c_client *client)
 {
 	struct smsc47m192_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
 	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(data);
 
 	return 0;
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 299629d47ed6..142352803650 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -267,9 +267,7 @@ DIV_TO_REG(long val)
 }
 
 struct w83792d_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
-	enum chips type;
 
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
@@ -299,9 +297,11 @@ struct w83792d_data {
 	u8 sf2_levels[3][4];	/* Smart FanII: Fan1,2,3 duty cycle levels */
 };
 
-static int w83792d_attach_adapter(struct i2c_adapter *adapter);
-static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
-static int w83792d_detach_client(struct i2c_client *client);
+static int w83792d_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int w83792d_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int w83792d_remove(struct i2c_client *client);
 static struct w83792d_data *w83792d_update_device(struct device *dev);
 
 #ifdef DEBUG
@@ -310,12 +310,22 @@ static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 
 static void w83792d_init_client(struct i2c_client *client);
 
+static struct i2c_device_id w83792d_id[] = {
+	{ "w83792d", w83792d },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83792d_id);
+
 static struct i2c_driver w83792d_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name = "w83792d",
 	},
-	.attach_adapter = w83792d_attach_adapter,
-	.detach_client = w83792d_detach_client,
+	.probe		= w83792d_probe,
+	.remove		= w83792d_remove,
+	.id_table	= w83792d_id,
+	.detect		= w83792d_detect,
+	.address_data	= &addr_data,
 };
 
 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
@@ -864,53 +874,14 @@ store_sf2_level(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-/* This function is called when:
-     * w83792d_driver is inserted (when this module is loaded), for each
-       available adapter
-     * when a new adapter is inserted (and w83792d_driver is still present) */
-static int
-w83792d_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, w83792d_detect);
-}
-
-
-static int
-w83792d_create_subclient(struct i2c_adapter *adapter,
-				struct i2c_client *new_client, int addr,
-				struct i2c_client **sub_cli)
-{
-	int err;
-	struct i2c_client *sub_client;
-
-	(*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!(sub_client)) {
-		return -ENOMEM;
-	}
-	sub_client->addr = 0x48 + addr;
-	i2c_set_clientdata(sub_client, NULL);
-	sub_client->adapter = adapter;
-	sub_client->driver = &w83792d_driver;
-	sub_client->flags = 0;
-	strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
-	if ((err = i2c_attach_client(sub_client))) {
-		dev_err(&new_client->dev, "subclient registration "
-			"at address 0x%x failed\n", sub_client->addr);
-		kfree(sub_client);
-		return err;
-	}
-	return 0;
-}
-
 
 static int
-w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
-		struct i2c_client *new_client)
+w83792d_detect_subclients(struct i2c_client *new_client)
 {
 	int i, id, err;
+	int address = new_client->addr;
 	u8 val;
+	struct i2c_adapter *adapter = new_client->adapter;
 	struct w83792d_data *data = i2c_get_clientdata(new_client);
 
 	id = i2c_adapter_id(adapter);
@@ -932,10 +903,7 @@ w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 
 	val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
 	if (!(val & 0x08)) {
-		err = w83792d_create_subclient(adapter, new_client, val & 0x7,
-						&data->lm75[0]);
-		if (err < 0)
-			goto ERROR_SC_0;
+		data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
 	}
 	if (!(val & 0x80)) {
 		if ((data->lm75[0] != NULL) &&
@@ -945,10 +913,8 @@ w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 			err = -ENODEV;
 			goto ERROR_SC_1;
 		}
-		err = w83792d_create_subclient(adapter, new_client,
-						(val >> 4) & 0x7, &data->lm75[1]);
-		if (err < 0)
-			goto ERROR_SC_1;
+		data->lm75[1] = i2c_new_dummy(adapter,
+					      0x48 + ((val >> 4) & 0x7));
 	}
 
 	return 0;
@@ -956,10 +922,8 @@ w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 /* Undo inits in case of errors */
 
 ERROR_SC_1:
-	if (data->lm75[0] != NULL) {
-		i2c_detach_client(data->lm75[0]);
-		kfree(data->lm75[0]);
-	}
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
 ERROR_SC_0:
 	return err;
 }
@@ -1294,47 +1258,25 @@ static const struct attribute_group w83792d_group = {
 	.attrs = w83792d_attributes,
 };
 
+/* Return 0 if detection is successful, -ENODEV otherwise */
 static int
-w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
+w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info)
 {
-	int i = 0, val1 = 0, val2;
-	struct i2c_client *client;
-	struct device *dev;
-	struct w83792d_data *data;
-	int err = 0;
-	const char *client_name = "";
+	struct i2c_adapter *adapter = client->adapter;
+	int val1, val2;
+	unsigned short address = client->addr;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
-		goto ERROR0;
-	}
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access w83792d_{read,write}_value. */
-
-	if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto ERROR0;
+		return -ENODEV;
 	}
 
-	client = &data->client;
-	dev = &client->dev;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &w83792d_driver;
-	client->flags = 0;
-
-	/* Now, we do the remaining detection. */
-
 	/* The w83792d may be stuck in some other bank than bank 0. This may
 	   make reading other information impossible. Specify a force=... or
 	   force_*=... parameter, and the Winbond will be reset to the right
 	   bank. */
 	if (kind < 0) {
 		if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
-			dev_dbg(dev, "Detection failed at step 1\n");
-			goto ERROR1;
+			return -ENODEV;
 		}
 		val1 = w83792d_read_value(client, W83792D_REG_BANK);
 		val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
@@ -1342,16 +1284,14 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
 		if (!(val1 & 0x07)) {  /* is Bank0 */
 			if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
 			     ((val1 & 0x80) && (val2 != 0x5c))) {
-				dev_dbg(dev, "Detection failed at step 2\n");
-				goto ERROR1;
+				return -ENODEV;
 			}
 		}
 		/* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
 		   should match */
 		if (w83792d_read_value(client,
 					W83792D_REG_I2C_ADDR) != address) {
-			dev_dbg(dev, "Detection failed at step 3\n");
-			goto ERROR1;
+			return -ENODEV;
 		}
 	}
 
@@ -1367,45 +1307,48 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
 		/* get vendor ID */
 		val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
 		if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
-			goto ERROR1;
+			return -ENODEV;
 		}
 		val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
 		if (val1 == 0x7a) {
 			kind = w83792d;
 		} else {
 			if (kind == 0)
-					dev_warn(dev,
+				dev_warn(&adapter->dev,
 					"w83792d: Ignoring 'force' parameter for"
 					" unknown chip at adapter %d, address"
 					" 0x%02x\n", i2c_adapter_id(adapter),
 					address);
-			goto ERROR1;
+			return -ENODEV;
 		}
 	}
 
-	if (kind == w83792d) {
-		client_name = "w83792d";
-	} else {
-		dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n",
-			kind);
-		goto ERROR1;
-	}
+	strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int
+w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct w83792d_data *data;
+	struct device *dev = &client->dev;
+	int i, val1, err;
 
-	/* Fill in the remaining client fields and put into the global list */
-	strlcpy(client->name, client_name, I2C_NAME_SIZE);
-	data->type = kind;
+	data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto ERROR0;
+	}
 
+	i2c_set_clientdata(client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
+	err = w83792d_detect_subclients(client);
+	if (err)
 		goto ERROR1;
 
-	if ((err = w83792d_detect_subclients(adapter, address,
-			kind, client)))
-		goto ERROR2;
-
 	/* Initialize the chip */
 	w83792d_init_client(client);
 
@@ -1457,16 +1400,10 @@ exit_remove_files:
 	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
 		sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
 ERROR3:
-	if (data->lm75[0] != NULL) {
-		i2c_detach_client(data->lm75[0]);
-		kfree(data->lm75[0]);
-	}
-	if (data->lm75[1] != NULL) {
-		i2c_detach_client(data->lm75[1]);
-		kfree(data->lm75[1]);
-	}
-ERROR2:
-	i2c_detach_client(client);
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
 ERROR1:
 	kfree(data);
 ERROR0:
@@ -1474,30 +1411,23 @@ ERROR0:
 }
 
 static int
-w83792d_detach_client(struct i2c_client *client)
+w83792d_remove(struct i2c_client *client)
 {
 	struct w83792d_data *data = i2c_get_clientdata(client);
-	int err, i;
-
-	/* main client */
-	if (data) {
-		hwmon_device_unregister(data->hwmon_dev);
-		sysfs_remove_group(&client->dev.kobj, &w83792d_group);
-		for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
-			sysfs_remove_group(&client->dev.kobj,
-					   &w83792d_group_fan[i]);
-	}
+	int i;
 
-	if ((err = i2c_detach_client(client)))
-		return err;
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &w83792d_group);
+	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
+		sysfs_remove_group(&client->dev.kobj,
+				   &w83792d_group_fan[i]);
 
-	/* main client */
-	if (data)
-		kfree(data);
-	/* subclient */
-	else
-		kfree(client);
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
 
+	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index ed3c019b78c7..4ad777640753 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -179,7 +179,6 @@ static inline s8 TEMP_TO_REG(long val, s8 min, s8 max)
 }
 
 struct w83793_data {
-	struct i2c_client client;
 	struct i2c_client *lm75[2];
 	struct device *hwmon_dev;
 	struct mutex update_lock;
@@ -226,19 +225,31 @@ struct w83793_data {
 
 static u8 w83793_read_value(struct i2c_client *client, u16 reg);
 static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
-static int w83793_attach_adapter(struct i2c_adapter *adapter);
-static int w83793_detect(struct i2c_adapter *adapter, int address, int kind);
-static int w83793_detach_client(struct i2c_client *client);
+static int w83793_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int w83793_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int w83793_remove(struct i2c_client *client);
 static void w83793_init_client(struct i2c_client *client);
 static void w83793_update_nonvolatile(struct device *dev);
 static struct w83793_data *w83793_update_device(struct device *dev);
 
+static struct i2c_device_id w83793_id[] = {
+	{ "w83793", w83793 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83793_id);
+
 static struct i2c_driver w83793_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		   .name = "w83793",
 	},
-	.attach_adapter = w83793_attach_adapter,
-	.detach_client = w83793_detach_client,
+	.probe		= w83793_probe,
+	.remove		= w83793_remove,
+	.id_table	= w83793_id,
+	.detect		= w83793_detect,
+	.address_data	= &addr_data,
 };
 
 static ssize_t
@@ -1053,89 +1064,51 @@ static void w83793_init_client(struct i2c_client *client)
 
 }
 
-static int w83793_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, w83793_detect);
-}
-
-static int w83793_detach_client(struct i2c_client *client)
+static int w83793_remove(struct i2c_client *client)
 {
 	struct w83793_data *data = i2c_get_clientdata(client);
 	struct device *dev = &client->dev;
-	int err, i;
+	int i;
 
-	/* main client */
-	if (data) {
-		hwmon_device_unregister(data->hwmon_dev);
+	hwmon_device_unregister(data->hwmon_dev);
 
-		for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
-			device_remove_file(dev,
-					   &w83793_sensor_attr_2[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
+		device_remove_file(dev,
+				   &w83793_sensor_attr_2[i].dev_attr);
 
-		for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
-			device_remove_file(dev, &sda_single_files[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+		device_remove_file(dev, &sda_single_files[i].dev_attr);
 
-		for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
-			device_remove_file(dev, &w83793_vid[i].dev_attr);
-		device_remove_file(dev, &dev_attr_vrm);
+	for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
+		device_remove_file(dev, &w83793_vid[i].dev_attr);
+	device_remove_file(dev, &dev_attr_vrm);
 
-		for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
-			device_remove_file(dev, &w83793_left_fan[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
+		device_remove_file(dev, &w83793_left_fan[i].dev_attr);
 
-		for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
-			device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
+		device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
 
-		for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
-			device_remove_file(dev, &w83793_temp[i].dev_attr);
-	}
+	for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
+		device_remove_file(dev, &w83793_temp[i].dev_attr);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
 
-	/* main client */
-	if (data)
-		kfree(data);
-	/* subclient */
-	else
-		kfree(client);
+	kfree(data);
 
 	return 0;
 }
 
 static int
-w83793_create_subclient(struct i2c_adapter *adapter,
-			struct i2c_client *client, int addr,
-			struct i2c_client **sub_cli)
-{
-	int err = 0;
-	struct i2c_client *sub_client;
-
-	(*sub_cli) = sub_client =
-	    kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (!(sub_client)) {
-		return -ENOMEM;
-	}
-	sub_client->addr = 0x48 + addr;
-	i2c_set_clientdata(sub_client, NULL);
-	sub_client->adapter = adapter;
-	sub_client->driver = &w83793_driver;
-	strlcpy(sub_client->name, "w83793 subclient", I2C_NAME_SIZE);
-	if ((err = i2c_attach_client(sub_client))) {
-		dev_err(&client->dev, "subclient registration "
-			"at address 0x%x failed\n", sub_client->addr);
-		kfree(sub_client);
-	}
-	return err;
-}
-
-static int
-w83793_detect_subclients(struct i2c_adapter *adapter, int address,
-			 int kind, struct i2c_client *client)
+w83793_detect_subclients(struct i2c_client *client)
 {
 	int i, id, err;
+	int address = client->addr;
 	u8 tmp;
+	struct i2c_adapter *adapter = client->adapter;
 	struct w83793_data *data = i2c_get_clientdata(client);
 
 	id = i2c_adapter_id(adapter);
@@ -1158,11 +1131,7 @@ w83793_detect_subclients(struct i2c_adapter *adapter, int address,
 
 	tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
 	if (!(tmp & 0x08)) {
-		err =
-		    w83793_create_subclient(adapter, client, tmp & 0x7,
-					    &data->lm75[0]);
-		if (err < 0)
-			goto ERROR_SC_0;
+		data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
 	}
 	if (!(tmp & 0x80)) {
 		if ((data->lm75[0] != NULL)
@@ -1173,10 +1142,8 @@ w83793_detect_subclients(struct i2c_adapter *adapter, int address,
 			err = -ENODEV;
 			goto ERROR_SC_1;
 		}
-		err = w83793_create_subclient(adapter, client,
-					      (tmp >> 4) & 0x7, &data->lm75[1]);
-		if (err < 0)
-			goto ERROR_SC_1;
+		data->lm75[1] = i2c_new_dummy(adapter,
+					      0x48 + ((tmp >> 4) & 0x7));
 	}
 
 	return 0;
@@ -1184,69 +1151,44 @@ w83793_detect_subclients(struct i2c_adapter *adapter, int address,
 	/* Undo inits in case of errors */
 
 ERROR_SC_1:
-	if (data->lm75[0] != NULL) {
-		i2c_detach_client(data->lm75[0]);
-		kfree(data->lm75[0]);
-	}
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
 ERROR_SC_0:
 	return err;
 }
 
-static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83793_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	int i;
-	u8 tmp, val;
-	struct i2c_client *client;
-	struct device *dev;
-	struct w83793_data *data;
-	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
-	int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
-	int files_temp = ARRAY_SIZE(w83793_temp) / 6;
-	int err = 0;
+	u8 tmp, bank;
+	struct i2c_adapter *adapter = client->adapter;
+	unsigned short address = client->addr;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
-		goto exit;
+		return -ENODEV;
 	}
 
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet.
-	   But it allows us to access w83793_{read,write}_value. */
-
-	if (!(data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	client = &data->client;
-	dev = &client->dev;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &w83793_driver;
+	bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
 
-	data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
-
-	/* Now, we do the remaining detection. */
 	if (kind < 0) {
-		tmp = data->bank & 0x80 ? 0x5c : 0xa3;
+		tmp = bank & 0x80 ? 0x5c : 0xa3;
 		/* Check Winbond vendor ID */
 		if (tmp != i2c_smbus_read_byte_data(client,
 							W83793_REG_VENDORID)) {
 			pr_debug("w83793: Detection failed at check "
 				 "vendor id\n");
-			err = -ENODEV;
-			goto free_mem;
+			return -ENODEV;
 		}
 
 		/* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
 		   should match */
-		if ((data->bank & 0x07) == 0
+		if ((bank & 0x07) == 0
 		 && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
 		    (address << 1)) {
 			pr_debug("w83793: Detection failed at check "
 				 "i2c addr\n");
-			err = -ENODEV;
-			goto free_mem;
+			return -ENODEV;
 		}
 
 	}
@@ -1255,30 +1197,47 @@ static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
 	   Winbond. Determine the chip type now */
 
 	if (kind <= 0) {
-		if (0x7b == w83793_read_value(client, W83793_REG_CHIPID)) {
+		if (0x7b == i2c_smbus_read_byte_data(client,
+						     W83793_REG_CHIPID)) {
 			kind = w83793;
 		} else {
 			if (kind == 0)
 				dev_warn(&adapter->dev, "w83793: Ignoring "
 					 "'force' parameter for unknown chip "
 					 "at address 0x%02x\n", address);
-			err = -ENODEV;
-			goto free_mem;
+			return -ENODEV;
 		}
 	}
 
-	/* Fill in the remaining client fields and put into the global list */
-	strlcpy(client->name, "w83793", I2C_NAME_SIZE);
+	strlcpy(info->type, "w83793", I2C_NAME_SIZE);
+
+	return 0;
+}
 
+static int w83793_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct w83793_data *data;
+	int i, tmp, val, err;
+	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
+	int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
+	int files_temp = ARRAY_SIZE(w83793_temp) / 6;
+
+	data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
+	err = w83793_detect_subclients(client);
+	if (err)
 		goto free_mem;
 
-	if ((err = w83793_detect_subclients(adapter, address, kind, client)))
-		goto detach_client;
-
 	/* Initialize the chip */
 	w83793_init_client(client);
 
@@ -1459,16 +1418,10 @@ exit_remove:
 	for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
 		device_remove_file(dev, &w83793_temp[i].dev_attr);
 
-	if (data->lm75[0] != NULL) {
-		i2c_detach_client(data->lm75[0]);
-		kfree(data->lm75[0]);
-	}
-	if (data->lm75[1] != NULL) {
-		i2c_detach_client(data->lm75[1]);
-		kfree(data->lm75[1]);
-	}
-detach_client:
-	i2c_detach_client(client);
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
 free_mem:
 	kfree(data);
 exit:
diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c
index 52e268e25dab..c71703527b13 100644
--- a/drivers/hwmon/w83l785ts.c
+++ b/drivers/hwmon/w83l785ts.c
@@ -81,10 +81,11 @@ I2C_CLIENT_INSMOD_1(w83l785ts);
  * Functions declaration
  */
 
-static int w83l785ts_attach_adapter(struct i2c_adapter *adapter);
-static int w83l785ts_detect(struct i2c_adapter *adapter, int address,
-	int kind);
-static int w83l785ts_detach_client(struct i2c_client *client);
+static int w83l785ts_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id);
+static int w83l785ts_detect(struct i2c_client *client, int kind,
+			    struct i2c_board_info *info);
+static int w83l785ts_remove(struct i2c_client *client);
 static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
 static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);
 
@@ -92,12 +93,22 @@ static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);
  * Driver data (common to all clients)
  */
  
+static struct i2c_device_id w83l785ts_id[] = {
+	{ "w83l785ts", w83l785ts },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83l785ts_id);
+
 static struct i2c_driver w83l785ts_driver = {
+	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "w83l785ts",
 	},
-	.attach_adapter	= w83l785ts_attach_adapter,
-	.detach_client	= w83l785ts_detach_client,
+	.probe		= w83l785ts_probe,
+	.remove		= w83l785ts_remove,
+	.id_table	= w83l785ts_id,
+	.detect		= w83l785ts_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -105,7 +116,6 @@ static struct i2c_driver w83l785ts_driver = {
  */
 
 struct w83l785ts_data {
-	struct i2c_client client;
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
@@ -135,40 +145,14 @@ static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 1);
  * Real code
  */
 
-static int w83l785ts_attach_adapter(struct i2c_adapter *adapter)
-{
-	if (!(adapter->class & I2C_CLASS_HWMON))
-		return 0;
-	return i2c_probe(adapter, &addr_data, w83l785ts_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83l785ts_detect(struct i2c_client *new_client, int kind,
+			    struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct w83l785ts_data *data;
-	int err = 0;
-
+	struct i2c_adapter *adapter = new_client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	if (!(data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* The common I2C client data is placed right before the
-	 * W83L785TS-specific data. */
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &w83l785ts_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/*
 	 * Now we do the remaining detection. A negative kind means that
@@ -188,8 +172,8 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 		      W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
 			dev_dbg(&adapter->dev,
 				"W83L785TS-S detection failed at 0x%02x.\n",
-				address);
-			goto exit_free;
+				new_client->addr);
+			return -ENODEV;
 		}
 	}
 
@@ -214,22 +198,34 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
 			dev_info(&adapter->dev,
 				 "Unsupported chip (man_id=0x%04X, "
 				 "chip_id=0x%02X).\n", man_id, chip_id);
-			goto exit_free;
+			return -ENODEV;
 		}
 	}
 
-	/* We can fill in the remaining client fields. */
-	strlcpy(new_client->name, "w83l785ts", I2C_NAME_SIZE);
+	strlcpy(info->type, "w83l785ts", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83l785ts_probe(struct i2c_client *new_client,
+			   const struct i2c_device_id *id)
+{
+	struct w83l785ts_data *data;
+	int err = 0;
+
+	data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
 	data->valid = 0;
 	mutex_init(&data->update_lock);
 
 	/* Default values in case the first read fails (unlikely). */
 	data->temp[1] = data->temp[0] = 0;
 
-	/* Tell the I2C layer a new client has arrived. */
-	if ((err = i2c_attach_client(new_client))) 
-		goto exit_free;
-
 	/*
 	 * Initialize the W83L785TS chip
 	 * Nothing yet, assume it is already started.
@@ -259,25 +255,20 @@ exit_remove:
 			   &sensor_dev_attr_temp1_input.dev_attr);
 	device_remove_file(&new_client->dev,
 			   &sensor_dev_attr_temp1_max.dev_attr);
-	i2c_detach_client(new_client);
-exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int w83l785ts_detach_client(struct i2c_client *client)
+static int w83l785ts_remove(struct i2c_client *client)
 {
 	struct w83l785ts_data *data = i2c_get_clientdata(client);
-	int err;
 
 	hwmon_device_unregister(data->hwmon_dev);
 	device_remove_file(&client->dev,
 			   &sensor_dev_attr_temp1_input.dev_attr);
 	device_remove_file(&client->dev,
 			   &sensor_dev_attr_temp1_max.dev_attr);
-	if ((err = i2c_detach_client(client)))
-		return err;
 
 	kfree(data);
 	return 0;
@@ -286,6 +277,18 @@ static int w83l785ts_detach_client(struct i2c_client *client)
 static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
 {
 	int value, i;
+	struct device *dev;
+	const char *prefix;
+
+	/* We might be called during detection, at which point the client
+	   isn't yet fully initialized, so we can't use dev_dbg on it */
+	if (i2c_get_clientdata(client)) {
+		dev = &client->dev;
+		prefix = "";
+	} else {
+		dev = &client->adapter->dev;
+		prefix = "w83l785ts: ";
+	}
 
 	/* Frequent read errors have been reported on Asus boards, so we
 	 * retry on read errors. If it still fails (unlikely), return the
@@ -293,15 +296,15 @@ static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
 	for (i = 1; i <= MAX_RETRIES; i++) {
 		value = i2c_smbus_read_byte_data(client, reg);
 		if (value >= 0) {
-			dev_dbg(&client->dev, "Read 0x%02x from register "
-				"0x%02x.\n", value, reg);
+			dev_dbg(dev, "%sRead 0x%02x from register 0x%02x.\n",
+				prefix, value, reg);
 			return value;
 		}
-		dev_dbg(&client->dev, "Read failed, will retry in %d.\n", i);
+		dev_dbg(dev, "%sRead failed, will retry in %d.\n", prefix, i);
 		msleep(i);
 	}
 
-	dev_err(&client->dev, "Couldn't read value from register 0x%02x.\n",
+	dev_err(dev, "%sCouldn't read value from register 0x%02x.\n", prefix,
 		reg);
 	return defval;
 }
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 35812823787b..eb8f72ca02f4 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -320,7 +320,7 @@ static int try_address(struct i2c_adapter *i2c_adap,
 		       unsigned char addr, int retries)
 {
 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
-	int i, ret = -1;
+	int i, ret = 0;
 
 	for (i = 0; i <= retries; i++) {
 		ret = i2c_outb(i2c_adap, addr);
@@ -508,7 +508,7 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
 			addr ^= 1;
 		ret = try_address(i2c_adap, addr, retries);
 		if ((ret != 1) && !nak_ok)
-			return -EREMOTEIO;
+			return -ENXIO;
 	}
 
 	return 0;
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index e954a20b97a6..d50b329a3c94 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -182,7 +182,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
 	}
 	if (state != 0xf8) {
 		dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state);
-		return -EIO;
+		return -EAGAIN;
 	}
 
 	DEB1("{{{ XFER %d messages\n", num);
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c
index 8907b0191677..1e328d19cd6d 100644
--- a/drivers/i2c/algos/i2c-algo-pcf.c
+++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -78,6 +78,36 @@ static void i2c_stop(struct i2c_algo_pcf_data *adap)
 	set_pcf(adap, 1, I2C_PCF_STOP);
 }
 
+static void handle_lab(struct i2c_algo_pcf_data *adap, const int *status)
+{
+	DEB2(printk(KERN_INFO
+		"i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n",
+		 *status));
+
+	/* Cleanup from LAB -- reset and enable ESO.
+	 * This resets the PCF8584; since we've lost the bus, no
+	 * further attempts should be made by callers to clean up
+	 * (no i2c_stop() etc.)
+	 */
+	set_pcf(adap, 1, I2C_PCF_PIN);
+	set_pcf(adap, 1, I2C_PCF_ESO);
+
+	/* We pause for a time period sufficient for any running
+	 * I2C transaction to complete -- the arbitration logic won't
+	 * work properly until the next START is seen.
+	 * It is assumed the bus driver or client has set a proper value.
+	 *
+	 * REVISIT: should probably use msleep instead of mdelay if we
+	 * know we can sleep.
+	 */
+	if (adap->lab_mdelay)
+		mdelay(adap->lab_mdelay);
+
+	DEB2(printk(KERN_INFO
+		"i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n",
+		get_pcf(adap, 1)));
+}
+
 static int wait_for_bb(struct i2c_algo_pcf_data *adap) {
 
 	int timeout = DEF_TIMEOUT;
@@ -109,23 +139,7 @@ static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status) {
 		*status = get_pcf(adap, 1);
 	}
 	if (*status & I2C_PCF_LAB) {
-		DEB2(printk(KERN_INFO 
-			"i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n",
-			 *status));
-		/* Cleanup from LAB-- reset and enable ESO.
-		 * This resets the PCF8584; since we've lost the bus, no
-		 * further attempts should be made by callers to clean up 
-		 * (no i2c_stop() etc.)
-		 */
-		set_pcf(adap, 1, I2C_PCF_PIN);
-		set_pcf(adap, 1, I2C_PCF_ESO);
-		/* TODO: we should pause for a time period sufficient for any
-		 * running I2C transaction to complete-- the arbitration
-		 * logic won't work properly until the next START is seen.
-		 */
-		DEB2(printk(KERN_INFO 
-			"i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n", 
-			get_pcf(adap,1)));
+		handle_lab(adap, status);
 		return(-EINTR);
 	}
 #endif
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 48438cc5d0ca..6fa027410648 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -4,6 +4,9 @@
 
 menu "I2C Hardware Bus support"
 
+comment "PC SMBus host controller drivers"
+	depends on PCI
+
 config I2C_ALI1535
 	tristate "ALI 1535"
 	depends on PCI
@@ -73,6 +76,176 @@ config I2C_AMD8111
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-amd8111.
 
+config I2C_I801
+	tristate "Intel 82801 (ICH)"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the Intel
+	  801 family of mainboard I2C interfaces.  Specifically, the following
+	  versions of the chipset are supported:
+	    82801AA
+	    82801AB
+	    82801BA
+	    82801CA/CAM
+	    82801DB
+	    82801EB/ER (ICH5/ICH5R)
+	    6300ESB
+	    ICH6
+	    ICH7
+	    ESB2
+	    ICH8
+	    ICH9
+	    Tolapai
+	    ICH10
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-i801.
+
+config I2C_PIIX4
+	tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the Intel
+	  PIIX4 family of mainboard I2C interfaces.  Specifically, the following
+	  versions of the chipset are supported (note that Serverworks is part
+	  of Broadcom):
+	    Intel PIIX4
+	    Intel 440MX
+	    ATI IXP200
+	    ATI IXP300
+	    ATI IXP400
+	    ATI SB600
+	    ATI SB700
+	    ATI SB800
+	    Serverworks OSB4
+	    Serverworks CSB5
+	    Serverworks CSB6
+	    Serverworks HT-1000
+	    SMSC Victory66
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-piix4.
+
+config I2C_NFORCE2
+	tristate "Nvidia nForce2, nForce3 and nForce4"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the Nvidia
+	  nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-nforce2.
+
+config I2C_NFORCE2_S4985
+	tristate "SMBus multiplexing on the Tyan S4985"
+	depends on I2C_NFORCE2 && EXPERIMENTAL
+	help
+	  Enabling this option will add specific SMBus support for the Tyan
+	  S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
+	  over 4 different channels, where the various memory module EEPROMs
+	  live.  Saying yes here will give you access to these in addition
+	  to the trunk.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-nforce2-s4985.
+
+config I2C_SIS5595
+	tristate "SiS 5595"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the
+	  SiS5595 SMBus (a subset of I2C) interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-sis5595.
+
+config I2C_SIS630
+	tristate "SiS 630/730"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the
+	  SiS630 and SiS730 SMBus (a subset of I2C) interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-sis630.
+
+config I2C_SIS96X
+	tristate "SiS 96x"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the SiS
+	  96x SMBus (a subset of I2C) interfaces.  Specifically, the following
+	  chipsets are supported:
+	    645/961
+	    645DX/961
+	    645DX/962
+	    648/961
+	    650/961
+	    735
+	    745
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-sis96x.
+
+config I2C_VIA
+	tristate "VIA VT82C586B"
+	depends on PCI && EXPERIMENTAL
+	select I2C_ALGOBIT
+	help
+	  If you say yes to this option, support will be included for the VIA
+          82C586B I2C interface
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-via.
+
+config I2C_VIAPRO
+	tristate "VIA VT82C596/82C686/82xx and CX700"
+	depends on PCI
+	help
+	  If you say yes to this option, support will be included for the VIA
+	  VT82C596 and later SMBus interface.  Specifically, the following
+	  chipsets are supported:
+	    VT82C596A/B
+	    VT82C686A/B
+	    VT8231
+	    VT8233/A
+	    VT8235
+	    VT8237R/A/S
+	    VT8251
+	    CX700
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-viapro.
+
+comment "Mac SMBus host controller drivers"
+	depends on PPC_CHRP || PPC_PMAC
+
+config I2C_HYDRA
+	tristate "CHRP Apple Hydra Mac I/O I2C interface"
+	depends on PCI && PPC_CHRP && EXPERIMENTAL
+	select I2C_ALGOBIT
+	help
+	  This supports the use of the I2C interface in the Apple Hydra Mac
+	  I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
+	  have such a machine.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-hydra.
+
+config I2C_POWERMAC
+	tristate "Powermac I2C interface"
+	depends on PPC_PMAC
+	default y
+	help
+	  This exposes the various PowerMac i2c interfaces to the linux i2c
+	  layer and to userland. It is used by various drivers on the PowerMac
+	  platform, and should generally be enabled.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-powermac.
+
+comment "Embebbed system I2C host controller drivers"
+
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
 	depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
@@ -101,10 +274,9 @@ config I2C_AU1550
 config I2C_BLACKFIN_TWI
 	tristate "Blackfin TWI I2C support"
 	depends on BLACKFIN
+	depends on !BF561 && !BF531 && !BF532 && !BF533
 	help
-	  This is the TWI I2C device driver for Blackfin BF522, BF525,
-	  BF527, BF534, BF536, BF537 and BF54x. For other Blackfin processors,
-	  please don't use this driver.
+	  This is the I2C bus driver for Blackfin on-chip TWI interface.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-bfin-twi.
@@ -117,6 +289,16 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
 	help
 	  The unit of the TWI clock is kHz.
 
+config I2C_CPM
+	tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
+	depends on (CPM1 || CPM2) && OF_I2C
+	help
+	  This supports the use of the I2C interface on Freescale
+	  processors with CPM1 or CPM2.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-cpm.
+
 config I2C_DAVINCI
 	tristate "DaVinci I2C driver"
 	depends on ARCH_DAVINCI
@@ -130,17 +312,6 @@ config I2C_DAVINCI
 	  devices such as DaVinci NIC.
 	  For details please see http://www.ti.com/davinci
 
-config I2C_ELEKTOR
-	tristate "Elektor ISA card"
-	depends on ISA && BROKEN_ON_SMP
-	select I2C_ALGOPCF
-	help
-	  This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
-	  such an adapter.
-
-	  This support is also available as a module.  If so, the module
-	  will be called i2c-elektor.
-
 config I2C_GPIO
 	tristate "GPIO-based bitbanging I2C"
 	depends on GENERIC_GPIO
@@ -149,104 +320,6 @@ config I2C_GPIO
 	  This is a very simple bitbanging I2C driver utilizing the
 	  arch-neutral GPIO API to control the SCL and SDA lines.
 
-config I2C_HYDRA
-	tristate "CHRP Apple Hydra Mac I/O I2C interface"
-	depends on PCI && PPC_CHRP && EXPERIMENTAL
-	select I2C_ALGOBIT
-	help
-	  This supports the use of the I2C interface in the Apple Hydra Mac
-	  I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
-	  have such a machine.
-
-	  This support is also available as a module.  If so, the module
-	  will be called i2c-hydra.
-
-config I2C_I801
-	tristate "Intel 82801 (ICH)"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the Intel
-	  801 family of mainboard I2C interfaces.  Specifically, the following
-	  versions of the chipset are supported:
-	    82801AA
-	    82801AB
-	    82801BA
-	    82801CA/CAM
-	    82801DB
-	    82801EB/ER (ICH5/ICH5R)
-	    6300ESB
-	    ICH6
-	    ICH7
-	    ESB2
-	    ICH8
-	    ICH9
-	    Tolapai
-	    ICH10
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-i801.
-
-config I2C_I810
-	tristate "Intel 810/815 (DEPRECATED)"
-	default n
-	depends on PCI
-	select I2C_ALGOBIT
-	help
-	  If you say yes to this option, support will be included for the Intel
-	  810/815 family of mainboard I2C interfaces.  Specifically, the
-	  following versions of the chipset are supported:
-	    i810AA
-	    i810AB
-	    i810E
-	    i815
-	    i845G
-
-	  This driver is deprecated in favor of the i810fb and intelfb drivers.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-i810.
-
-config I2C_PXA
-	tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ARCH_PXA
-	help
-	  If you have devices in the PXA I2C bus, say yes to this option.
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-pxa.
-
-config I2C_PXA_SLAVE
-	bool "Intel PXA2XX I2C Slave comms support"
-	depends on I2C_PXA
-	help
-	  Support I2C slave mode communications on the PXA I2C bus.  This
-	  is necessary for systems where the PXA may be a target on the
-	  I2C bus.
-
-config I2C_PIIX4
-	tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the Intel
-	  PIIX4 family of mainboard I2C interfaces.  Specifically, the following
-	  versions of the chipset are supported (note that Serverworks is part
-	  of Broadcom):
-	    Intel PIIX4
-	    Intel 440MX
-	    ATI IXP200
-	    ATI IXP300
-	    ATI IXP400
-	    ATI SB600
-	    ATI SB700
-	    ATI SB800
-	    Serverworks OSB4
-	    Serverworks CSB5
-	    Serverworks CSB6
-	    Serverworks HT-1000
-	    SMSC Victory66
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-piix4.
-
 config I2C_IBM_IIC
 	tristate "IBM PPC 4xx on-chip I2C interface"
 	depends on 4xx
@@ -281,18 +354,6 @@ config I2C_IXP2000
 	  This driver is deprecated and will be dropped soon. Use i2c-gpio
 	  instead.
 
-config I2C_POWERMAC
-	tristate "Powermac I2C interface"
-	depends on PPC_PMAC
-	default y
-	help
-	  This exposes the various PowerMac i2c interfaces to the linux i2c
-	  layer and to userland. It is used by various drivers on the PowerMac
-	  platform, and should generally be enabled.
-
-	  This support is also available as a module.  If so, the module
-	  will be called i2c-powermac.
-
 config I2C_MPC
 	tristate "MPC107/824x/85xx/52xx/86xx"
 	depends on PPC32
@@ -305,16 +366,6 @@ config I2C_MPC
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-mpc.
 
-config I2C_NFORCE2
-	tristate "Nvidia nForce2, nForce3 and nForce4"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the Nvidia
-	  nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-nforce2.
-
 config I2C_OCORES
 	tristate "OpenCores I2C Controller"
 	depends on EXPERIMENTAL
@@ -336,6 +387,73 @@ config I2C_OMAP
 	  Like OMAP1510/1610/1710/5912 and OMAP242x.
 	  For details see http://www.ti.com/omap.
 
+config I2C_PXA
+	tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)"
+	depends on EXPERIMENTAL && ARCH_PXA
+	help
+	  If you have devices in the PXA I2C bus, say yes to this option.
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-pxa.
+
+config I2C_PXA_SLAVE
+	bool "Intel PXA2XX I2C Slave comms support"
+	depends on I2C_PXA
+	help
+	  Support I2C slave mode communications on the PXA I2C bus.  This
+	  is necessary for systems where the PXA may be a target on the
+	  I2C bus.
+
+config I2C_S3C2410
+	tristate "S3C2410 I2C Driver"
+	depends on ARCH_S3C2410
+	help
+	  Say Y here to include support for I2C controller in the
+	  Samsung S3C2410 based System-on-Chip devices.
+
+config I2C_SH7760
+	tristate "Renesas SH7760 I2C Controller"
+	depends on CPU_SUBTYPE_SH7760
+	help
+	  This driver supports the 2 I2C interfaces on the Renesas SH7760.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-sh7760.
+
+config I2C_SH_MOBILE
+	tristate "SuperH Mobile I2C Controller"
+	depends on SUPERH
+	help
+	  If you say yes to this option, support will be included for the
+	  built-in I2C interface on the Renesas SH-Mobile processor.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-sh_mobile.
+
+config I2C_SIMTEC
+	tristate "Simtec Generic I2C interface"
+	select I2C_ALGOBIT
+	help
+	  If you say yes to this option, support will be included for
+	  the Simtec Generic I2C interface. This driver is for the
+	  simple I2C bus used on newer Simtec products for general
+	  I2C, such as DDC on the Simtec BBD2016A.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called i2c-simtec.
+
+config I2C_VERSATILE
+	tristate "ARM Versatile/Realview I2C bus support"
+	depends on ARCH_VERSATILE || ARCH_REALVIEW
+	select I2C_ALGOBIT
+	help
+	  Say yes if you want to support the I2C serial bus on ARMs Versatile
+	  range of platforms.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-versatile.
+
+comment "External I2C/SMBus adapter drivers"
+
 config I2C_PARPORT
 	tristate "Parallel port adapter"
 	depends on PARPORT
@@ -383,150 +501,6 @@ config I2C_PARPORT_LIGHT
 	  This support is also available as a module.  If so, the module
 	  will be called i2c-parport-light.
 
-config I2C_PASEMI
-	tristate "PA Semi SMBus interface"
-	depends on PPC_PASEMI && PCI
-	help
-	  Supports the PA Semi PWRficient on-chip SMBus interfaces.
-
-config I2C_PROSAVAGE
-	tristate "S3/VIA (Pro)Savage (DEPRECATED)"
-	default n
-	depends on PCI
-	select I2C_ALGOBIT
-	help
-	  If you say yes to this option, support will be included for the
-	  I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8
-	  graphics processors.
-	  chipsets supported:
-	    S3/VIA KM266/VT8375 aka ProSavage8
-	    S3/VIA KM133/VT8365 aka Savage4
-
-	  This driver is deprecated in favor of the savagefb driver.
-
-	  This support is also available as a module.  If so, the module
-	  will be called i2c-prosavage.
-
-config I2C_S3C2410
-	tristate "S3C2410 I2C Driver"
-	depends on ARCH_S3C2410
-	help
-	  Say Y here to include support for I2C controller in the
-	  Samsung S3C2410 based System-on-Chip devices.
-
-config I2C_SAVAGE4
-	tristate "S3 Savage 4 (DEPRECATED)"
-	default n
-	depends on PCI
-	select I2C_ALGOBIT
-	help
-	  If you say yes to this option, support will be included for the
-	  S3 Savage 4 I2C interface.
-
-	  This driver is deprecated in favor of the savagefb driver.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-savage4.
-
-config I2C_SIBYTE
-	tristate "SiByte SMBus interface"
-	depends on SIBYTE_SB1xxx_SOC
-	help
-	  Supports the SiByte SOC on-chip I2C interfaces (2 channels).
-
-config I2C_SIMTEC
-	tristate "Simtec Generic I2C interface"
-	select I2C_ALGOBIT
-	help
-	  If you say yes to this option, support will be included for
-	  the Simtec Generic I2C interface. This driver is for the
-	  simple I2C bus used on newer Simtec products for general
-	  I2C, such as DDC on the Simtec BBD2016A.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called i2c-simtec.
-
-config SCx200_I2C
-	tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
-	depends on SCx200_GPIO
-	select I2C_ALGOBIT
-	help
-	  Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
-
-	  If you don't know what to do here, say N.
-
-	  This support is also available as a module.  If so, the module
-	  will be called scx200_i2c.
-
-	  This driver is deprecated and will be dropped soon. Use i2c-gpio
-	  (or scx200_acb) instead.
-
-config SCx200_I2C_SCL
-	int "GPIO pin used for SCL"
-	depends on SCx200_I2C
-	default "12"
-	help
-	  Enter the GPIO pin number used for the SCL signal.  This value can
-	  also be specified with a module parameter.
-
-config SCx200_I2C_SDA
-	int "GPIO pin used for SDA"
-	depends on SCx200_I2C
-	default "13"
-	help
-	  Enter the GPIO pin number used for the SSA signal.  This value can
-	  also be specified with a module parameter.
-
-config SCx200_ACB
-	tristate "Geode ACCESS.bus support"
-	depends on X86_32 && PCI
-	help
-	  Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
-	  SC1100 processors and the CS5535 and CS5536 Geode companion devices.
-
-	  If you don't know what to do here, say N.
-
-	  This support is also available as a module.  If so, the module
-	  will be called scx200_acb.
-
-config I2C_SIS5595
-	tristate "SiS 5595"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the
-	  SiS5595 SMBus (a subset of I2C) interface.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-sis5595.
-
-config I2C_SIS630
-	tristate "SiS 630/730"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the
-	  SiS630 and SiS730 SMBus (a subset of I2C) interface.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-sis630.
-
-config I2C_SIS96X
-	tristate "SiS 96x"
-	depends on PCI
-	help
-	  If you say yes to this option, support will be included for the SiS
-	  96x SMBus (a subset of I2C) interfaces.  Specifically, the following
-	  chipsets are supported:
-	    645/961
-	    645DX/961
-	    645DX/962
-	    648/961
-	    650/961
-	    735
-	    745
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-sis96x.
-
 config I2C_TAOS_EVM
 	tristate "TAOS evaluation module"
 	depends on EXPERIMENTAL
@@ -543,21 +517,8 @@ config I2C_TAOS_EVM
 	  This support is also available as a module.  If so, the module
 	  will be called i2c-taos-evm.
 
-config I2C_STUB
-	tristate "I2C/SMBus Test Stub"
-	depends on EXPERIMENTAL && m
-	default 'n'
-	help
-	  This module may be useful to developers of SMBus client drivers,
-	  especially for certain kinds of sensor chips.
-
-	  If you do build this module, be sure to read the notes and warnings
-	  in <file:Documentation/i2c/i2c-stub>.
-
-	  If you don't know what to do here, definitely say N.
-
 config I2C_TINY_USB
-	tristate "I2C-Tiny-USB"
+	tristate "Tiny-USB adapter"
 	depends on USB
 	help
 	  If you say yes to this option, support will be included for the
@@ -567,16 +528,21 @@ config I2C_TINY_USB
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-tiny-usb.
 
-config I2C_VERSATILE
-	tristate "ARM Versatile/Realview I2C bus support"
-	depends on ARCH_VERSATILE || ARCH_REALVIEW
+comment "Graphics adapter I2C/DDC channel drivers"
+	depends on PCI
+
+config I2C_VOODOO3
+	tristate "Voodoo 3"
+	depends on PCI
 	select I2C_ALGOBIT
 	help
-	  Say yes if you want to support the I2C serial bus on ARMs Versatile
-	  range of platforms.
+	  If you say yes to this option, support will be included for the
+	  Voodoo 3 I2C interface.
 
 	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-versatile.
+	  will be called i2c-voodoo3.
+
+comment "Other I2C/SMBus bus drivers"
 
 config I2C_ACORN
 	tristate "Acorn IOC/IOMD I2C bus support"
@@ -588,46 +554,42 @@ config I2C_ACORN
 
 	  If you don't know, say Y.
 
-config I2C_VIA
-	tristate "VIA 82C586B"
-	depends on PCI && EXPERIMENTAL
-	select I2C_ALGOBIT
+config I2C_ELEKTOR
+	tristate "Elektor ISA card"
+	depends on ISA && BROKEN_ON_SMP
+	select I2C_ALGOPCF
 	help
-	  If you say yes to this option, support will be included for the VIA
-          82C586B I2C interface
+	  This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
+	  such an adapter.
 
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-via.
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-elektor.
 
-config I2C_VIAPRO
-	tristate "VIA VT82C596/82C686/82xx and CX700"
+config I2C_ISCH
+	tristate "Intel SCH SMBus 1.0"
 	depends on PCI
 	help
-	  If you say yes to this option, support will be included for the VIA
-	  VT82C596 and later SMBus interface.  Specifically, the following
-	  chipsets are supported:
-	    VT82C596A/B
-	    VT82C686A/B
-	    VT8231
-	    VT8233/A
-	    VT8235
-	    VT8237R/A/S
-	    VT8251
-	    CX700
+	  Say Y here if you want to use SMBus controller on the Intel SCH
+	  based systems.
 
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-viapro.
+	  This driver can also be built as a module. If so, the module
+	  will be called i2c-isch.
 
-config I2C_VOODOO3
-	tristate "Voodoo 3"
-	depends on PCI
-	select I2C_ALGOBIT
+config I2C_MV64XXX
+	tristate "Marvell mv64xxx I2C Controller"
+	depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
 	help
 	  If you say yes to this option, support will be included for the
-	  Voodoo 3 I2C interface.
+	  built-in I2C interface on the Marvell 64xxx line of host bridges.
 
 	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-voodoo3.
+	  will be called i2c-mv64xxx.
+
+config I2C_PASEMI
+	tristate "PA Semi SMBus interface"
+	depends on PPC_PASEMI && PCI
+	help
+	  Supports the PA Semi PWRficient on-chip SMBus interfaces.
 
 config I2C_PCA_ISA
 	tristate "PCA9564 on an ISA bus"
@@ -657,16 +619,6 @@ config I2C_PCA_PLATFORM
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-pca-platform.
 
-config I2C_MV64XXX
-	tristate "Marvell mv64xxx I2C Controller"
-	depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
-	help
-	  If you say yes to this option, support will be included for the
-	  built-in I2C interface on the Marvell 64xxx line of host bridges.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-mv64xxx.
-
 config I2C_PNX
 	tristate "I2C bus support for Philips PNX targets"
 	depends on ARCH_PNX4008
@@ -686,23 +638,66 @@ config I2C_PMCMSP
 	  This driver can also be built as module. If so, the module
 	  will be called i2c-pmcmsp.
 
-config I2C_SH7760
-	tristate "Renesas SH7760 I2C Controller"
-	depends on CPU_SUBTYPE_SH7760
+config I2C_SIBYTE
+	tristate "SiByte SMBus interface"
+	depends on SIBYTE_SB1xxx_SOC
 	help
-	  This driver supports the 2 I2C interfaces on the Renesas SH7760.
+	  Supports the SiByte SOC on-chip I2C interfaces (2 channels).
 
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-sh7760.
+config I2C_STUB
+	tristate "I2C/SMBus Test Stub"
+	depends on EXPERIMENTAL && m
+	default 'n'
+	help
+	  This module may be useful to developers of SMBus client drivers,
+	  especially for certain kinds of sensor chips.
 
-config I2C_SH_MOBILE
-	tristate "SuperH Mobile I2C Controller"
-	depends on SUPERH
+	  If you do build this module, be sure to read the notes and warnings
+	  in <file:Documentation/i2c/i2c-stub>.
+
+	  If you don't know what to do here, definitely say N.
+
+config SCx200_I2C
+	tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
+	depends on SCx200_GPIO
+	select I2C_ALGOBIT
 	help
-	  If you say yes to this option, support will be included for the
-	  built-in I2C interface on the Renesas SH-Mobile processor.
+	  Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
 
-	  This driver can also be built as a module.  If so, the module
-	  will be called i2c-sh_mobile.
+	  If you don't know what to do here, say N.
+
+	  This support is also available as a module.  If so, the module
+	  will be called scx200_i2c.
+
+	  This driver is deprecated and will be dropped soon. Use i2c-gpio
+	  (or scx200_acb) instead.
+
+config SCx200_I2C_SCL
+	int "GPIO pin used for SCL"
+	depends on SCx200_I2C
+	default "12"
+	help
+	  Enter the GPIO pin number used for the SCL signal.  This value can
+	  also be specified with a module parameter.
+
+config SCx200_I2C_SDA
+	int "GPIO pin used for SDA"
+	depends on SCx200_I2C
+	default "13"
+	help
+	  Enter the GPIO pin number used for the SSA signal.  This value can
+	  also be specified with a module parameter.
+
+config SCx200_ACB
+	tristate "Geode ACCESS.bus support"
+	depends on X86_32 && PCI
+	help
+	  Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
+	  SC1100 processors and the CS5535 and CS5536 Geode companion devices.
+
+	  If you don't know what to do here, say N.
+
+	  This support is also available as a module.  If so, the module
+	  will be called scx200_acb.
 
 endmenu
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index e8c882a5ea66..cfc6dd03ad39 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -2,57 +2,68 @@
 # Makefile for the i2c bus drivers.
 #
 
+# PC SMBus host controller drivers
 obj-$(CONFIG_I2C_ALI1535)	+= i2c-ali1535.o
 obj-$(CONFIG_I2C_ALI1563)	+= i2c-ali1563.o
 obj-$(CONFIG_I2C_ALI15X3)	+= i2c-ali15x3.o
 obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
 obj-$(CONFIG_I2C_AMD756_S4882)	+= i2c-amd756-s4882.o
 obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
+obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
+obj-$(CONFIG_I2C_NFORCE2)	+= i2c-nforce2.o
+obj-$(CONFIG_I2C_NFORCE2_S4985)	+= i2c-nforce2-s4985.o
+obj-$(CONFIG_I2C_PIIX4)		+= i2c-piix4.o
+obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
+obj-$(CONFIG_I2C_SIS630)	+= i2c-sis630.o
+obj-$(CONFIG_I2C_SIS96X)	+= i2c-sis96x.o
+obj-$(CONFIG_I2C_VIA)		+= i2c-via.o
+obj-$(CONFIG_I2C_VIAPRO)	+= i2c-viapro.o
+
+# Mac SMBus host controller drivers
+obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
+obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
+
+# Embebbed system I2C/SMBus host controller drivers
 obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_BLACKFIN_TWI)	+= i2c-bfin-twi.o
+obj-$(CONFIG_I2C_CPM)		+= i2c-cpm.o
 obj-$(CONFIG_I2C_DAVINCI)	+= i2c-davinci.o
-obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_GPIO)		+= i2c-gpio.o
-obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
-obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
-obj-$(CONFIG_I2C_I810)		+= i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)	+= i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)	+= i2c-iop3xx.o
 obj-$(CONFIG_I2C_IXP2000)	+= i2c-ixp2000.o
-obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
 obj-$(CONFIG_I2C_MPC)		+= i2c-mpc.o
-obj-$(CONFIG_I2C_MV64XXX)	+= i2c-mv64xxx.o
-obj-$(CONFIG_I2C_NFORCE2)	+= i2c-nforce2.o
 obj-$(CONFIG_I2C_OCORES)	+= i2c-ocores.o
 obj-$(CONFIG_I2C_OMAP)		+= i2c-omap.o
+obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
+obj-$(CONFIG_I2C_S3C2410)	+= i2c-s3c2410.o
+obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
+obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o
+obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o
+obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
+
+# External I2C/SMBus adapter drivers
 obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o
 obj-$(CONFIG_I2C_PARPORT_LIGHT)	+= i2c-parport-light.o
+obj-$(CONFIG_I2C_TAOS_EVM)	+= i2c-taos-evm.o
+obj-$(CONFIG_I2C_TINY_USB)	+= i2c-tiny-usb.o
+
+# Graphics adapter I2C/DDC channel drivers
+obj-$(CONFIG_I2C_VOODOO3)	+= i2c-voodoo3.o
+
+# Other I2C/SMBus bus drivers
+obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
+obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
+obj-$(CONFIG_I2C_ISCH)		+= i2c-isch.o
+obj-$(CONFIG_I2C_MV64XXX)	+= i2c-mv64xxx.o
 obj-$(CONFIG_I2C_PASEMI)	+= i2c-pasemi.o
 obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o
 obj-$(CONFIG_I2C_PCA_PLATFORM)	+= i2c-pca-platform.o
-obj-$(CONFIG_I2C_PIIX4)		+= i2c-piix4.o
 obj-$(CONFIG_I2C_PMCMSP)	+= i2c-pmcmsp.o
 obj-$(CONFIG_I2C_PNX)		+= i2c-pnx.o
-obj-$(CONFIG_I2C_PROSAVAGE)	+= i2c-prosavage.o
-obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
-obj-$(CONFIG_I2C_S3C2410)	+= i2c-s3c2410.o
-obj-$(CONFIG_I2C_SAVAGE4)	+= i2c-savage4.o
-obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
-obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o
 obj-$(CONFIG_I2C_SIBYTE)	+= i2c-sibyte.o
-obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o
-obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
-obj-$(CONFIG_I2C_SIS630)	+= i2c-sis630.o
-obj-$(CONFIG_I2C_SIS96X)	+= i2c-sis96x.o
 obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
-obj-$(CONFIG_I2C_TAOS_EVM)	+= i2c-taos-evm.o
-obj-$(CONFIG_I2C_TINY_USB)	+= i2c-tiny-usb.o
-obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
-obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
-obj-$(CONFIG_I2C_VIA)		+= i2c-via.o
-obj-$(CONFIG_I2C_VIAPRO)	+= i2c-viapro.o
-obj-$(CONFIG_I2C_VOODOO3)	+= i2c-voodoo3.o
 obj-$(CONFIG_SCx200_ACB)	+= scx200_acb.o
 obj-$(CONFIG_SCx200_I2C)	+= scx200_i2c.o
 
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index f14372ac2fc5..9cead9b9458e 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -1,6 +1,4 @@
 /*
-    i2c-ali1535.c - Part of lm_sensors, Linux kernel modules for hardware
-                    monitoring
     Copyright (c) 2000  Frodo Looijaard <frodol@dds.nl>, 
                         Philip Edelbrock <phil@netroedge.com>, 
                         Mark D. Studebaker <mdsxyz123@yahoo.com>,
@@ -61,6 +59,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
@@ -159,6 +158,11 @@ static int ali1535_setup(struct pci_dev *dev)
 		goto exit;
 	}
 
+	retval = acpi_check_region(ali1535_smba, ALI1535_SMB_IOSIZE,
+				   ali1535_driver.name);
+	if (retval)
+		goto exit;
+
 	if (!request_region(ali1535_smba, ALI1535_SMB_IOSIZE,
 			    ali1535_driver.name)) {
 		dev_err(&dev->dev, "ALI1535_smb region 0x%x already in use!\n",
@@ -259,7 +263,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 			dev_err(&adap->dev,
 				"SMBus reset failed! (0x%02x) - controller or "
 				"device on bus is probably hung\n", temp);
-			return -1;
+			return -EBUSY;
 		}
 	} else {
 		/* check and clear done bit */
@@ -281,12 +285,12 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
-		result = -1;
+		result = -ETIMEDOUT;
 		dev_err(&adap->dev, "SMBus Timeout!\n");
 	}
 
 	if (temp & ALI1535_STS_FAIL) {
-		result = -1;
+		result = -EIO;
 		dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
 	}
 
@@ -295,7 +299,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 	 * do a printk.  This means that bus collisions go unreported.
 	 */
 	if (temp & ALI1535_STS_BUSERR) {
-		result = -1;
+		result = -ENXIO;
 		dev_dbg(&adap->dev,
 			"Error: no response or bus collision ADD=%02x\n",
 			inb_p(SMBHSTADD));
@@ -303,13 +307,13 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 
 	/* haven't ever seen this */
 	if (temp & ALI1535_STS_DEV) {
-		result = -1;
+		result = -EIO;
 		dev_err(&adap->dev, "Error: device error\n");
 	}
 
 	/* check to see if the "command complete" indication is set */
 	if (!(temp & ALI1535_STS_DONE)) {
-		result = -1;
+		result = -ETIMEDOUT;
 		dev_err(&adap->dev, "Error: command never completed\n");
 	}
 
@@ -332,7 +336,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
 			  unsigned short flags, char read_write, u8 command,
 			  int size, union i2c_smbus_data *data)
@@ -357,10 +361,6 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
 	outb_p(0xFF, SMBHSTSTS);
 
 	switch (size) {
-	case I2C_SMBUS_PROC_CALL:
-		dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-		result = -1;
-		goto EXIT;
 	case I2C_SMBUS_QUICK:
 		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
 		       SMBHSTADD);
@@ -418,13 +418,15 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
 				outb_p(data->block[i], SMBBLKDAT);
 		}
 		break;
+	default:
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		result = -EOPNOTSUPP;
+		goto EXIT;
 	}
 
-	if (ali1535_transaction(adap)) {
-		/* Error in transaction */
-		result = -1;
+	result = ali1535_transaction(adap);
+	if (result)
 		goto EXIT;
-	}
 
 	if ((read_write == I2C_SMBUS_WRITE) || (size == ALI1535_QUICK)) {
 		result = 0;
@@ -475,7 +477,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter ali1535_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_ALI1535,
-	.class          = I2C_CLASS_HWMON,
+	.class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c
index 6b68074e518a..fc3e5b026423 100644
--- a/drivers/i2c/busses/i2c-ali1563.c
+++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -21,6 +21,7 @@
 #include <linux/i2c.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 
 #define ALI1563_MAX_TIMEOUT	500
 #define	ALI1563_SMBBA		0x80
@@ -67,6 +68,7 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
 {
 	u32 data;
 	int timeout;
+	int status = -EIO;
 
 	dev_dbg(&a->dev, "Transaction (pre): STS=%02x, CNTL1=%02x, "
 		"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
@@ -103,13 +105,15 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
 		/* Issue 'kill' to host controller */
 		outb_p(HST_CNTL2_KILL,SMB_HST_CNTL2);
 		data = inb_p(SMB_HST_STS);
+		status = -ETIMEDOUT;
  	}
 
 	/* device error - no response, ignore the autodetection case */
-	if ((data & HST_STS_DEVERR) && (size != HST_CNTL2_QUICK)) {
-		dev_err(&a->dev, "Device error!\n");
+	if (data & HST_STS_DEVERR) {
+		if (size != HST_CNTL2_QUICK)
+			dev_err(&a->dev, "Device error!\n");
+		status = -ENXIO;
 	}
-
 	/* bus collision */
 	if (data & HST_STS_BUSERR) {
 		dev_err(&a->dev, "Bus collision!\n");
@@ -122,13 +126,14 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
 		outb_p(0x0,SMB_HST_CNTL2);
 	}
 
-	return -1;
+	return status;
 }
 
 static int ali1563_block_start(struct i2c_adapter * a)
 {
 	u32 data;
 	int timeout;
+	int status = -EIO;
 
 	dev_dbg(&a->dev, "Block (pre): STS=%02x, CNTL1=%02x, "
 		"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
@@ -164,13 +169,20 @@ static int ali1563_block_start(struct i2c_adapter * a)
 
 	if (timeout && !(data & HST_STS_BAD))
 		return 0;
+
+	if (timeout == 0)
+		status = -ETIMEDOUT;
+
+	if (data & HST_STS_DEVERR)
+		status = -ENXIO;
+
 	dev_err(&a->dev, "SMBus Error: %s%s%s%s%s\n",
-		timeout ? "Timeout " : "",
+		timeout ? "" : "Timeout ",
 		data & HST_STS_FAIL ? "Transaction Failed " : "",
 		data & HST_STS_BUSERR ? "No response or Bus Collision " : "",
 		data & HST_STS_DEVERR ? "Device Error " : "",
 		!(data & HST_STS_DONE) ? "Transaction Never Finished " : "");
-	return -1;
+	return status;
 }
 
 static int ali1563_block(struct i2c_adapter * a, union i2c_smbus_data * data, u8 rw)
@@ -235,10 +247,6 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr,
 
 	/* Map the size to what the chip understands */
 	switch (size) {
-	case I2C_SMBUS_PROC_CALL:
-		dev_err(&a->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-		error = -EINVAL;
-		break;
 	case I2C_SMBUS_QUICK:
 		size = HST_CNTL2_QUICK;
 		break;
@@ -254,6 +262,10 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr,
 	case I2C_SMBUS_BLOCK_DATA:
 		size = HST_CNTL2_BLOCK;
 		break;
+	default:
+		dev_warn(&a->dev, "Unsupported transaction %d\n", size);
+		error = -EOPNOTSUPP;
+		goto Done;
 	}
 
 	outb_p(((addr & 0x7f) << 1) | (rw & 0x01), SMB_HST_ADD);
@@ -345,6 +357,10 @@ static int __devinit ali1563_setup(struct pci_dev * dev)
 		}
 	}
 
+	if (acpi_check_region(ali1563_smba, ALI1563_SMB_IOSIZE,
+			      ali1563_pci_driver.name))
+		goto Err;
+
 	if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE,
 			    ali1563_pci_driver.name)) {
 		dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n",
@@ -371,7 +387,7 @@ static const struct i2c_algorithm ali1563_algorithm = {
 static struct i2c_adapter ali1563_adapter = {
 	.owner	= THIS_MODULE,
 	.id	= I2C_HW_SMBUS_ALI1563,
-	.class	= I2C_CLASS_HWMON,
+	.class	= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo	= &ali1563_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index 93bf87d70961..234fdde7d40e 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -1,6 +1,4 @@
 /*
-    ali15x3.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1999  Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com> and
     Mark D. Studebaker <mdsxyz123@yahoo.com>
@@ -68,6 +66,7 @@
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* ALI15X3 SMBus address offsets */
@@ -166,6 +165,10 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev)
 	if(force_addr)
 		ali15x3_smba = force_addr & ~(ALI15X3_SMB_IOSIZE - 1);
 
+	if (acpi_check_region(ali15x3_smba, ALI15X3_SMB_IOSIZE,
+			      ali15x3_driver.name))
+		return -EBUSY;
+
 	if (!request_region(ali15x3_smba, ALI15X3_SMB_IOSIZE,
 			    ali15x3_driver.name)) {
 		dev_err(&ALI15X3_dev->dev,
@@ -282,7 +285,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 			dev_err(&adap->dev, "SMBus reset failed! (0x%02x) - "
 				"controller or device on bus is probably hung\n",
 				temp);
-			return -1;
+			return -EBUSY;
 		}
 	} else {
 		/* check and clear done bit */
@@ -304,12 +307,12 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
-		result = -1;
+		result = -ETIMEDOUT;
 		dev_err(&adap->dev, "SMBus Timeout!\n");
 	}
 
 	if (temp & ALI15X3_STS_TERM) {
-		result = -1;
+		result = -EIO;
 		dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
 	}
 
@@ -320,7 +323,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 	  This means that bus collisions go unreported.
 	*/
 	if (temp & ALI15X3_STS_COLL) {
-		result = -1;
+		result = -ENXIO;
 		dev_dbg(&adap->dev,
 			"Error: no response or bus collision ADD=%02x\n",
 			inb_p(SMBHSTADD));
@@ -328,7 +331,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 
 	/* haven't ever seen this */
 	if (temp & ALI15X3_STS_DEV) {
-		result = -1;
+		result = -EIO;
 		dev_err(&adap->dev, "Error: device error\n");
 	}
 	dev_dbg(&adap->dev, "Transaction (post): STS=%02x, CNT=%02x, CMD=%02x, "
@@ -338,7 +341,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
 		   unsigned short flags, char read_write, u8 command,
 		   int size, union i2c_smbus_data * data)
@@ -362,9 +365,6 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
 	}
 
 	switch (size) {
-	case I2C_SMBUS_PROC_CALL:
-		dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-		return -1;
 	case I2C_SMBUS_QUICK:
 		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
 		       SMBHSTADD);
@@ -417,12 +417,16 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
 		}
 		size = ALI15X3_BLOCK_DATA;
 		break;
+	default:
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
 	outb_p(size, SMBHSTCNT);	/* output command */
 
-	if (ali15x3_transaction(adap))	/* Error in transaction */
-		return -1;
+	temp = ali15x3_transaction(adap);
+	if (temp)
+		return temp;
 
 	if ((read_write == I2C_SMBUS_WRITE) || (size == ALI15X3_QUICK))
 		return 0;
@@ -470,7 +474,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter ali15x3_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_ALI15X3,
-	.class          = I2C_CLASS_HWMON,
+	.class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index c38a0a112208..2f150e33c74c 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -58,7 +58,7 @@ static s32 amd756_access_virt0(struct i2c_adapter * adap, u16 addr,
 	/* We exclude the multiplexed addresses */
 	if (addr == 0x4c || (addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30
 	 || addr == 0x18)
-		return -1;
+		return -ENXIO;
 
 	mutex_lock(&amd756_lock);
 
@@ -86,7 +86,7 @@ static inline s32 amd756_access_channel(struct i2c_adapter * adap, u16 addr,
 
 	/* We exclude the non-multiplexed addresses */
 	if (addr != 0x4c && (addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30)
-		return -1;
+		return -ENXIO;
 
 	mutex_lock(&amd756_lock);
 
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index 43508d61eb7c..1ea39254dac6 100644
--- a/drivers/i2c/busses/i2c-amd756.c
+++ b/drivers/i2c/busses/i2c-amd756.c
@@ -1,7 +1,4 @@
 /*
-    amd756.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 1999-2002 Merlin Hughes <merlin@merlin.org>
 
     Shamelessly ripped from i2c-piix4.c:
@@ -45,6 +42,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* AMD756 SMBus address offsets */
@@ -151,17 +149,17 @@ static int amd756_transaction(struct i2c_adapter *adap)
 	}
 
 	if (temp & GS_PRERR_STS) {
-		result = -1;
+		result = -ENXIO;
 		dev_dbg(&adap->dev, "SMBus Protocol error (no response)!\n");
 	}
 
 	if (temp & GS_COL_STS) {
-		result = -1;
+		result = -EIO;
 		dev_warn(&adap->dev, "SMBus collision!\n");
 	}
 
 	if (temp & GS_TO_STS) {
-		result = -1;
+		result = -ETIMEDOUT;
 		dev_dbg(&adap->dev, "SMBus protocol timeout!\n");
 	}
 
@@ -189,22 +187,18 @@ static int amd756_transaction(struct i2c_adapter *adap)
 	outw_p(inw(SMB_GLOBAL_ENABLE) | GE_ABORT, SMB_GLOBAL_ENABLE);
 	msleep(100);
 	outw_p(GS_CLEAR_STS, SMB_GLOBAL_STATUS);
-	return -1;
+	return -EIO;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 amd756_access(struct i2c_adapter * adap, u16 addr,
 		  unsigned short flags, char read_write,
 		  u8 command, int size, union i2c_smbus_data * data)
 {
 	int i, len;
+	int status;
 
-	/** TODO: Should I supporte the 10-bit transfers? */
 	switch (size) {
-	case I2C_SMBUS_PROC_CALL:
-		dev_dbg(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-		/* TODO: Well... It is supported, I'm just not sure what to do here... */
-		return -1;
 	case I2C_SMBUS_QUICK:
 		outw_p(((addr & 0x7f) << 1) | (read_write & 0x01),
 		       SMB_HOST_ADDRESS);
@@ -251,13 +245,17 @@ static s32 amd756_access(struct i2c_adapter * adap, u16 addr,
 		}
 		size = AMD756_BLOCK_DATA;
 		break;
+	default:
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
 	/* How about enabling interrupts... */
 	outw_p(size & GE_CYC_TYPE_MASK, SMB_GLOBAL_ENABLE);
 
-	if (amd756_transaction(adap))	/* Error in transaction */
-		return -1;
+	status = amd756_transaction(adap);
+	if (status)
+		return status;
 
 	if ((read_write == I2C_SMBUS_WRITE) || (size == AMD756_QUICK))
 		return 0;
@@ -301,7 +299,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 struct i2c_adapter amd756_smbus = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_AMD756,
-	.class          = I2C_CLASS_HWMON,
+	.class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
@@ -368,6 +366,11 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
 		amd756_ioport += SMB_ADDR_OFFSET;
 	}
 
+	error = acpi_check_region(amd756_ioport, SMB_IOSIZE,
+				  amd756_driver.name);
+	if (error)
+		return error;
+
 	if (!request_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name)) {
 		dev_err(&pdev->dev, "SMB region 0x%x already in use!\n",
 			amd756_ioport);
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index 5d1a27ef2504..3972208876b3 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/delay.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
@@ -77,7 +78,7 @@ static unsigned int amd_ec_wait_write(struct amd_smbus *smbus)
 	if (!timeout) {
 		dev_warn(&smbus->dev->dev,
 			 "Timeout while waiting for IBF to clear\n");
-		return -1;
+		return -ETIMEDOUT;
 	}
 
 	return 0;
@@ -93,7 +94,7 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
 	if (!timeout) {
 		dev_warn(&smbus->dev->dev,
 			 "Timeout while waiting for OBF to set\n");
-		return -1;
+		return -ETIMEDOUT;
 	}
 
 	return 0;
@@ -102,16 +103,21 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
 static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
 		unsigned char *data)
 {
-	if (amd_ec_wait_write(smbus))
-		return -1;
+	int status;
+
+	status = amd_ec_wait_write(smbus);
+	if (status)
+		return status;
 	outb(AMD_EC_CMD_RD, smbus->base + AMD_EC_CMD);
 
-	if (amd_ec_wait_write(smbus))
-		return -1;
+	status = amd_ec_wait_write(smbus);
+	if (status)
+		return status;
 	outb(address, smbus->base + AMD_EC_DATA);
 
-	if (amd_ec_wait_read(smbus))
-		return -1;
+	status = amd_ec_wait_read(smbus);
+	if (status)
+		return status;
 	*data = inb(smbus->base + AMD_EC_DATA);
 
 	return 0;
@@ -120,16 +126,21 @@ static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
 static unsigned int amd_ec_write(struct amd_smbus *smbus, unsigned char address,
 		unsigned char data)
 {
-	if (amd_ec_wait_write(smbus))
-		return -1;
+	int status;
+
+	status = amd_ec_wait_write(smbus);
+	if (status)
+		return status;
 	outb(AMD_EC_CMD_WR, smbus->base + AMD_EC_CMD);
 
-	if (amd_ec_wait_write(smbus))
-		return -1;
+	status = amd_ec_wait_write(smbus);
+	if (status)
+		return status;
 	outb(address, smbus->base + AMD_EC_DATA);
 
-	if (amd_ec_wait_write(smbus))
-		return -1;
+	status = amd_ec_wait_write(smbus);
+	if (status)
+		return status;
 	outb(data, smbus->base + AMD_EC_DATA);
 
 	return 0;
@@ -267,12 +278,17 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
 
 		default:
 			dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
-			return -1;
+			return -EOPNOTSUPP;
 	}
 
 	amd_ec_write(smbus, AMD_SMB_ADDR, addr << 1);
 	amd_ec_write(smbus, AMD_SMB_PRTCL, protocol);
 
+	/* FIXME this discards status from ec_read(); so temp[0] will
+	 * hold stack garbage ... the rest of this routine will act
+	 * nonsensically.  Ignored ec_write() status might explain
+	 * some such failures...
+	 */
 	amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
 
 	if (~temp[0] & AMD_SMB_STS_DONE) {
@@ -286,7 +302,7 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
 	}
 
 	if ((~temp[0] & AMD_SMB_STS_DONE) || (temp[0] & AMD_SMB_STS_STATUS))
-		return -1;
+		return -EIO;
 
 	if (read_write == I2C_SMBUS_WRITE)
 		return 0;
@@ -359,6 +375,10 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
 	smbus->base = pci_resource_start(dev, 0);
 	smbus->size = pci_resource_len(dev, 0);
 
+	error = acpi_check_resource_conflict(&dev->resource[0]);
+	if (error)
+		goto out_kfree;
+
 	if (!request_region(smbus->base, smbus->size, amd8111_driver.name)) {
 		error = -EBUSY;
 		goto out_kfree;
@@ -368,7 +388,7 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
 	snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
 		"SMBus2 AMD8111 adapter at %04x", smbus->base);
 	smbus->adapter.id = I2C_HW_SMBUS_AMD8111;
-	smbus->adapter.class = I2C_CLASS_HWMON;
+	smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	smbus->adapter.algo = &smbus_algorithm;
 	smbus->adapter.algo_data = smbus;
 
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index cae9dc89d88c..66a04c2c660f 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -269,9 +269,13 @@ static int
 au1550_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
 {
 	struct i2c_au1550_data *adap = i2c_adap->algo_data;
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)adap->psc_base;
 	struct i2c_msg *p;
 	int i, err = 0;
 
+	sp->psc_ctrl = PSC_CTRL_ENABLE;
+	au_sync();
+
 	for (i = 0; !err && i < num; i++) {
 		p = &msgs[i];
 		err = do_address(adap, p->addr, p->flags & I2C_M_RD,
@@ -288,6 +292,10 @@ au1550_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
 	*/
 	if (err == 0)
 		err = num;
+
+	sp->psc_ctrl = PSC_CTRL_SUSPEND;
+	au_sync();
+
 	return err;
 }
 
@@ -302,6 +310,61 @@ static const struct i2c_algorithm au1550_algo = {
 	.functionality	= au1550_func,
 };
 
+static void i2c_au1550_setup(struct i2c_au1550_data *priv)
+{
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+	u32 stat;
+
+	sp->psc_ctrl = PSC_CTRL_DISABLE;
+	au_sync();
+	sp->psc_sel = PSC_SEL_PS_SMBUSMODE;
+	sp->psc_smbcfg = 0;
+	au_sync();
+	sp->psc_ctrl = PSC_CTRL_ENABLE;
+	au_sync();
+	do {
+		stat = sp->psc_smbstat;
+		au_sync();
+	} while ((stat & PSC_SMBSTAT_SR) == 0);
+
+	sp->psc_smbcfg = (PSC_SMBCFG_RT_FIFO8 | PSC_SMBCFG_TT_FIFO8 |
+				PSC_SMBCFG_DD_DISABLE);
+
+	/* Divide by 8 to get a 6.25 MHz clock.  The later protocol
+	 * timings are based on this clock.
+	 */
+	sp->psc_smbcfg |= PSC_SMBCFG_SET_DIV(PSC_SMBCFG_DIV8);
+	sp->psc_smbmsk = PSC_SMBMSK_ALLMASK;
+	au_sync();
+
+	/* Set the protocol timer values.  See Table 71 in the
+	 * Au1550 Data Book for standard timing values.
+	 */
+	sp->psc_smbtmr = PSC_SMBTMR_SET_TH(0) | PSC_SMBTMR_SET_PS(15) | \
+		PSC_SMBTMR_SET_PU(15) | PSC_SMBTMR_SET_SH(15) | \
+		PSC_SMBTMR_SET_SU(15) | PSC_SMBTMR_SET_CL(15) | \
+		PSC_SMBTMR_SET_CH(15);
+	au_sync();
+
+	sp->psc_smbcfg |= PSC_SMBCFG_DE_ENABLE;
+	do {
+		stat = sp->psc_smbstat;
+		au_sync();
+	} while ((stat & PSC_SMBSTAT_SR) == 0);
+
+	sp->psc_ctrl = PSC_CTRL_SUSPEND;
+	au_sync();
+}
+
+static void i2c_au1550_disable(struct i2c_au1550_data *priv)
+{
+	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+
+	sp->psc_smbcfg = 0;
+	sp->psc_ctrl = PSC_CTRL_DISABLE;
+	au_sync();
+}
+
 /*
  * registering functions to load algorithms at runtime
  * Prior to calling us, the 50MHz clock frequency and routing
@@ -311,9 +374,7 @@ static int __devinit
 i2c_au1550_probe(struct platform_device *pdev)
 {
 	struct i2c_au1550_data *priv;
-	volatile psc_smb_t *sp;
 	struct resource *r;
-	u32 stat;
 	int ret;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -348,43 +409,7 @@ i2c_au1550_probe(struct platform_device *pdev)
 
 	/* Now, set up the PSC for SMBus PIO mode.
 	*/
-	sp = (volatile psc_smb_t *)priv->psc_base;
-	sp->psc_ctrl = PSC_CTRL_DISABLE;
-	au_sync();
-	sp->psc_sel = PSC_SEL_PS_SMBUSMODE;
-	sp->psc_smbcfg = 0;
-	au_sync();
-	sp->psc_ctrl = PSC_CTRL_ENABLE;
-	au_sync();
-	do {
-		stat = sp->psc_smbstat;
-		au_sync();
-	} while ((stat & PSC_SMBSTAT_SR) == 0);
-
-	sp->psc_smbcfg = (PSC_SMBCFG_RT_FIFO8 | PSC_SMBCFG_TT_FIFO8 |
-				PSC_SMBCFG_DD_DISABLE);
-
-	/* Divide by 8 to get a 6.25 MHz clock.  The later protocol
-	 * timings are based on this clock.
-	 */
-	sp->psc_smbcfg |= PSC_SMBCFG_SET_DIV(PSC_SMBCFG_DIV8);
-	sp->psc_smbmsk = PSC_SMBMSK_ALLMASK;
-	au_sync();
-
-	/* Set the protocol timer values.  See Table 71 in the
-	 * Au1550 Data Book for standard timing values.
-	 */
-	sp->psc_smbtmr = PSC_SMBTMR_SET_TH(0) | PSC_SMBTMR_SET_PS(15) | \
-		PSC_SMBTMR_SET_PU(15) | PSC_SMBTMR_SET_SH(15) | \
-		PSC_SMBTMR_SET_SU(15) | PSC_SMBTMR_SET_CL(15) | \
-		PSC_SMBTMR_SET_CH(15);
-	au_sync();
-
-	sp->psc_smbcfg |= PSC_SMBCFG_DE_ENABLE;
-	do {
-		stat = sp->psc_smbstat;
-		au_sync();
-	} while ((stat & PSC_SMBSTAT_DR) == 0);
+	i2c_au1550_setup(priv);
 
 	ret = i2c_add_numbered_adapter(&priv->adap);
 	if (ret == 0) {
@@ -392,10 +417,7 @@ i2c_au1550_probe(struct platform_device *pdev)
 		return 0;
 	}
 
-	/* disable the PSC */
-	sp->psc_smbcfg = 0;
-	sp->psc_ctrl = PSC_CTRL_DISABLE;
-	au_sync();
+	i2c_au1550_disable(priv);
 
 	release_resource(priv->ioarea);
 	kfree(priv->ioarea);
@@ -409,27 +431,24 @@ static int __devexit
 i2c_au1550_remove(struct platform_device *pdev)
 {
 	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
 	platform_set_drvdata(pdev, NULL);
 	i2c_del_adapter(&priv->adap);
-	sp->psc_smbcfg = 0;
-	sp->psc_ctrl = PSC_CTRL_DISABLE;
-	au_sync();
+	i2c_au1550_disable(priv);
 	release_resource(priv->ioarea);
 	kfree(priv->ioarea);
 	kfree(priv);
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int
 i2c_au1550_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
-	sp->psc_ctrl = PSC_CTRL_SUSPEND;
-	au_sync();
+	i2c_au1550_disable(priv);
+
 	return 0;
 }
 
@@ -437,14 +456,15 @@ static int
 i2c_au1550_resume(struct platform_device *pdev)
 {
 	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-	volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
-	sp->psc_ctrl = PSC_CTRL_ENABLE;
-	au_sync();
-	while (!(sp->psc_smbstat & PSC_SMBSTAT_SR))
-		au_sync();
+	i2c_au1550_setup(priv);
+
 	return 0;
 }
+#else
+#define i2c_au1550_suspend	NULL
+#define i2c_au1550_resume	NULL
+#endif
 
 static struct platform_driver au1xpsc_smbus_driver = {
 	.driver = {
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
new file mode 100644
index 000000000000..8164de1f4d72
--- /dev/null
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -0,0 +1,745 @@
+/*
+ * Freescale CPM1/CPM2 I2C interface.
+ * Copyright (c) 1999 Dan Malek (dmalek@jlc.net).
+ *
+ * moved into proper i2c interface;
+ * Brad Parker (brad@heeltoe.com)
+ *
+ * Parts from dbox2_i2c.c (cvs.tuxbox.org)
+ * (C) 2000-2001 Felix Domke (tmbinc@gmx.net), Gillem (htoa@gmx.net)
+ *
+ * (C) 2007 Montavista Software, Inc.
+ * Vitaly Bordug <vitb@kernel.crashing.org>
+ *
+ * Converted to of_platform_device. Renamed to i2c-cpm.c.
+ * (C) 2007,2008 Jochen Friedrich <jochen@scram.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/stddef.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_i2c.h>
+#include <sysdev/fsl_soc.h>
+#include <asm/cpm.h>
+
+/* Try to define this if you have an older CPU (earlier than rev D4) */
+/* However, better use a GPIO based bitbang driver in this case :/   */
+#undef	I2C_CHIP_ERRATA
+
+#define CPM_MAX_READ    513
+#define CPM_MAXBD       4
+
+#define I2C_EB			(0x10) /* Big endian mode */
+#define I2C_EB_CPM2		(0x30) /* Big endian mode, memory snoop */
+
+#define DPRAM_BASE		((u8 __iomem __force *)cpm_muram_addr(0))
+
+/* I2C parameter RAM. */
+struct i2c_ram {
+	ushort  rbase;		/* Rx Buffer descriptor base address */
+	ushort  tbase;		/* Tx Buffer descriptor base address */
+	u_char  rfcr;		/* Rx function code */
+	u_char  tfcr;		/* Tx function code */
+	ushort  mrblr;		/* Max receive buffer length */
+	uint    rstate;		/* Internal */
+	uint    rdp;		/* Internal */
+	ushort  rbptr;		/* Rx Buffer descriptor pointer */
+	ushort  rbc;		/* Internal */
+	uint    rxtmp;		/* Internal */
+	uint    tstate;		/* Internal */
+	uint    tdp;		/* Internal */
+	ushort  tbptr;		/* Tx Buffer descriptor pointer */
+	ushort  tbc;		/* Internal */
+	uint    txtmp;		/* Internal */
+	char    res1[4];	/* Reserved */
+	ushort  rpbase;		/* Relocation pointer */
+	char    res2[2];	/* Reserved */
+};
+
+#define I2COM_START	0x80
+#define I2COM_MASTER	0x01
+#define I2CER_TXE	0x10
+#define I2CER_BUSY	0x04
+#define I2CER_TXB	0x02
+#define I2CER_RXB	0x01
+#define I2MOD_EN	0x01
+
+/* I2C Registers */
+struct i2c_reg {
+	u8	i2mod;
+	u8	res1[3];
+	u8	i2add;
+	u8	res2[3];
+	u8	i2brg;
+	u8	res3[3];
+	u8	i2com;
+	u8	res4[3];
+	u8	i2cer;
+	u8	res5[3];
+	u8	i2cmr;
+};
+
+struct cpm_i2c {
+	char *base;
+	struct of_device *ofdev;
+	struct i2c_adapter adap;
+	uint dp_addr;
+	int version; /* CPM1=1, CPM2=2 */
+	int irq;
+	int cp_command;
+	int freq;
+	struct i2c_reg __iomem *i2c_reg;
+	struct i2c_ram __iomem *i2c_ram;
+	u16 i2c_addr;
+	wait_queue_head_t i2c_wait;
+	cbd_t __iomem *tbase;
+	cbd_t __iomem *rbase;
+	u_char *txbuf[CPM_MAXBD];
+	u_char *rxbuf[CPM_MAXBD];
+	u32 txdma[CPM_MAXBD];
+	u32 rxdma[CPM_MAXBD];
+};
+
+static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id)
+{
+	struct cpm_i2c *cpm;
+	struct i2c_reg __iomem *i2c_reg;
+	struct i2c_adapter *adap = dev_id;
+	int i;
+
+	cpm = i2c_get_adapdata(dev_id);
+	i2c_reg = cpm->i2c_reg;
+
+	/* Clear interrupt. */
+	i = in_8(&i2c_reg->i2cer);
+	out_8(&i2c_reg->i2cer, i);
+
+	dev_dbg(&adap->dev, "Interrupt: %x\n", i);
+
+	wake_up_interruptible(&cpm->i2c_wait);
+
+	return i ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static void cpm_reset_i2c_params(struct cpm_i2c *cpm)
+{
+	struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram;
+
+	/* Set up the I2C parameters in the parameter ram. */
+	out_be16(&i2c_ram->tbase, (u8 __iomem *)cpm->tbase - DPRAM_BASE);
+	out_be16(&i2c_ram->rbase, (u8 __iomem *)cpm->rbase - DPRAM_BASE);
+
+	if (cpm->version == 1) {
+		out_8(&i2c_ram->tfcr, I2C_EB);
+		out_8(&i2c_ram->rfcr, I2C_EB);
+	} else {
+		out_8(&i2c_ram->tfcr, I2C_EB_CPM2);
+		out_8(&i2c_ram->rfcr, I2C_EB_CPM2);
+	}
+
+	out_be16(&i2c_ram->mrblr, CPM_MAX_READ);
+
+	out_be32(&i2c_ram->rstate, 0);
+	out_be32(&i2c_ram->rdp, 0);
+	out_be16(&i2c_ram->rbptr, 0);
+	out_be16(&i2c_ram->rbc, 0);
+	out_be32(&i2c_ram->rxtmp, 0);
+	out_be32(&i2c_ram->tstate, 0);
+	out_be32(&i2c_ram->tdp, 0);
+	out_be16(&i2c_ram->tbptr, 0);
+	out_be16(&i2c_ram->tbc, 0);
+	out_be32(&i2c_ram->txtmp, 0);
+}
+
+static void cpm_i2c_force_close(struct i2c_adapter *adap)
+{
+	struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+	struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg;
+
+	dev_dbg(&adap->dev, "cpm_i2c_force_close()\n");
+
+	cpm_command(cpm->cp_command, CPM_CR_CLOSE_RX_BD);
+
+	out_8(&i2c_reg->i2cmr, 0x00);	/* Disable all interrupts */
+	out_8(&i2c_reg->i2cer, 0xff);
+}
+
+static void cpm_i2c_parse_message(struct i2c_adapter *adap,
+	struct i2c_msg *pmsg, int num, int tx, int rx)
+{
+	cbd_t __iomem *tbdf;
+	cbd_t __iomem *rbdf;
+	u_char addr;
+	u_char *tb;
+	u_char *rb;
+	struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+
+	tbdf = cpm->tbase + tx;
+	rbdf = cpm->rbase + rx;
+
+	addr = pmsg->addr << 1;
+	if (pmsg->flags & I2C_M_RD)
+		addr |= 1;
+
+	tb = cpm->txbuf[tx];
+	rb = cpm->rxbuf[rx];
+
+	/* Align read buffer */
+	rb = (u_char *) (((ulong) rb + 1) & ~1);
+
+	tb[0] = addr;		/* Device address byte w/rw flag */
+
+	out_be16(&tbdf->cbd_datlen, pmsg->len + 1);
+	out_be16(&tbdf->cbd_sc, 0);
+
+	if (!(pmsg->flags & I2C_M_NOSTART))
+		setbits16(&tbdf->cbd_sc, BD_I2C_START);
+
+	if (tx + 1 == num)
+		setbits16(&tbdf->cbd_sc, BD_SC_LAST | BD_SC_WRAP);
+
+	if (pmsg->flags & I2C_M_RD) {
+		/*
+		 * To read, we need an empty buffer of the proper length.
+		 * All that is used is the first byte for address, the remainder
+		 * is just used for timing (and doesn't really have to exist).
+		 */
+
+		dev_dbg(&adap->dev, "cpm_i2c_read(abyte=0x%x)\n", addr);
+
+		out_be16(&rbdf->cbd_datlen, 0);
+		out_be16(&rbdf->cbd_sc, BD_SC_EMPTY | BD_SC_INTRPT);
+
+		if (rx + 1 == CPM_MAXBD)
+			setbits16(&rbdf->cbd_sc, BD_SC_WRAP);
+
+		eieio();
+		setbits16(&tbdf->cbd_sc, BD_SC_READY);
+	} else {
+		dev_dbg(&adap->dev, "cpm_i2c_write(abyte=0x%x)\n", addr);
+
+		memcpy(tb+1, pmsg->buf, pmsg->len);
+
+		eieio();
+		setbits16(&tbdf->cbd_sc, BD_SC_READY | BD_SC_INTRPT);
+	}
+}
+
+static int cpm_i2c_check_message(struct i2c_adapter *adap,
+	struct i2c_msg *pmsg, int tx, int rx)
+{
+	cbd_t __iomem *tbdf;
+	cbd_t __iomem *rbdf;
+	u_char *tb;
+	u_char *rb;
+	struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+
+	tbdf = cpm->tbase + tx;
+	rbdf = cpm->rbase + rx;
+
+	tb = cpm->txbuf[tx];
+	rb = cpm->rxbuf[rx];
+
+	/* Align read buffer */
+	rb = (u_char *) (((uint) rb + 1) & ~1);
+
+	eieio();
+	if (pmsg->flags & I2C_M_RD) {
+		dev_dbg(&adap->dev, "tx sc 0x%04x, rx sc 0x%04x\n",
+			in_be16(&tbdf->cbd_sc), in_be16(&rbdf->cbd_sc));
+
+		if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) {
+			dev_dbg(&adap->dev, "I2C read; No ack\n");
+			return -ENXIO;
+		}
+		if (in_be16(&rbdf->cbd_sc) & BD_SC_EMPTY) {
+			dev_err(&adap->dev,
+				"I2C read; complete but rbuf empty\n");
+			return -EREMOTEIO;
+		}
+		if (in_be16(&rbdf->cbd_sc) & BD_SC_OV) {
+			dev_err(&adap->dev, "I2C read; Overrun\n");
+			return -EREMOTEIO;
+		}
+		memcpy(pmsg->buf, rb, pmsg->len);
+	} else {
+		dev_dbg(&adap->dev, "tx sc %d 0x%04x\n", tx,
+			in_be16(&tbdf->cbd_sc));
+
+		if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) {
+			dev_dbg(&adap->dev, "I2C write; No ack\n");
+			return -ENXIO;
+		}
+		if (in_be16(&tbdf->cbd_sc) & BD_SC_UN) {
+			dev_err(&adap->dev, "I2C write; Underrun\n");
+			return -EIO;
+		}
+		if (in_be16(&tbdf->cbd_sc) & BD_SC_CL) {
+			dev_err(&adap->dev, "I2C write; Collision\n");
+			return -EIO;
+		}
+	}
+	return 0;
+}
+
+static int cpm_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+	struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+	struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg;
+	struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram;
+	struct i2c_msg *pmsg;
+	int ret, i;
+	int tptr;
+	int rptr;
+	cbd_t __iomem *tbdf;
+	cbd_t __iomem *rbdf;
+
+	if (num > CPM_MAXBD)
+		return -EINVAL;
+
+	/* Check if we have any oversized READ requests */
+	for (i = 0; i < num; i++) {
+		pmsg = &msgs[i];
+		if (pmsg->len >= CPM_MAX_READ)
+			return -EINVAL;
+	}
+
+	/* Reset to use first buffer */
+	out_be16(&i2c_ram->rbptr, in_be16(&i2c_ram->rbase));
+	out_be16(&i2c_ram->tbptr, in_be16(&i2c_ram->tbase));
+
+	tbdf = cpm->tbase;
+	rbdf = cpm->rbase;
+
+	tptr = 0;
+	rptr = 0;
+
+	while (tptr < num) {
+		pmsg = &msgs[tptr];
+		dev_dbg(&adap->dev, "R: %d T: %d\n", rptr, tptr);
+
+		cpm_i2c_parse_message(adap, pmsg, num, tptr, rptr);
+		if (pmsg->flags & I2C_M_RD)
+			rptr++;
+		tptr++;
+	}
+	/* Start transfer now */
+	/* Enable RX/TX/Error interupts */
+	out_8(&i2c_reg->i2cmr, I2CER_TXE | I2CER_TXB | I2CER_RXB);
+	out_8(&i2c_reg->i2cer, 0xff);	/* Clear interrupt status */
+	/* Chip bug, set enable here */
+	setbits8(&i2c_reg->i2mod, I2MOD_EN);	/* Enable */
+	/* Begin transmission */
+	setbits8(&i2c_reg->i2com, I2COM_START);
+
+	tptr = 0;
+	rptr = 0;
+
+	while (tptr < num) {
+		/* Check for outstanding messages */
+		dev_dbg(&adap->dev, "test ready.\n");
+		pmsg = &msgs[tptr];
+		if (pmsg->flags & I2C_M_RD)
+			ret = wait_event_interruptible_timeout(cpm->i2c_wait,
+				!(in_be16(&rbdf[rptr].cbd_sc) & BD_SC_EMPTY),
+				1 * HZ);
+		else
+			ret = wait_event_interruptible_timeout(cpm->i2c_wait,
+				!(in_be16(&tbdf[tptr].cbd_sc) & BD_SC_READY),
+				1 * HZ);
+		if (ret == 0) {
+			ret = -EREMOTEIO;
+			dev_err(&adap->dev, "I2C transfer: timeout\n");
+			goto out_err;
+		}
+		if (ret > 0) {
+			dev_dbg(&adap->dev, "ready.\n");
+			ret = cpm_i2c_check_message(adap, pmsg, tptr, rptr);
+			tptr++;
+			if (pmsg->flags & I2C_M_RD)
+				rptr++;
+			if (ret)
+				goto out_err;
+		}
+	}
+#ifdef I2C_CHIP_ERRATA
+	/*
+	 * Chip errata, clear enable. This is not needed on rev D4 CPUs.
+	 * Disabling I2C too early may cause too short stop condition
+	 */
+	udelay(4);
+	clrbits8(&i2c_reg->i2mod, I2MOD_EN);
+#endif
+	return (num);
+
+out_err:
+	cpm_i2c_force_close(adap);
+#ifdef I2C_CHIP_ERRATA
+	/*
+	 * Chip errata, clear enable. This is not needed on rev D4 CPUs.
+	 */
+	clrbits8(&i2c_reg->i2mod, I2MOD_EN);
+#endif
+	return ret;
+}
+
+static u32 cpm_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+}
+
+/* -----exported algorithm data: -------------------------------------	*/
+
+static const struct i2c_algorithm cpm_i2c_algo = {
+	.master_xfer = cpm_i2c_xfer,
+	.functionality = cpm_i2c_func,
+};
+
+static const struct i2c_adapter cpm_ops = {
+	.owner		= THIS_MODULE,
+	.name		= "i2c-cpm",
+	.algo		= &cpm_i2c_algo,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
+};
+
+static int __devinit cpm_i2c_setup(struct cpm_i2c *cpm)
+{
+	struct of_device *ofdev = cpm->ofdev;
+	const u32 *data;
+	int len, ret, i;
+	void __iomem *i2c_base;
+	cbd_t __iomem *tbdf;
+	cbd_t __iomem *rbdf;
+	unsigned char brg;
+
+	dev_dbg(&cpm->ofdev->dev, "cpm_i2c_setup()\n");
+
+	init_waitqueue_head(&cpm->i2c_wait);
+
+	cpm->irq = of_irq_to_resource(ofdev->node, 0, NULL);
+	if (cpm->irq == NO_IRQ)
+		return -EINVAL;
+
+	/* Install interrupt handler. */
+	ret = request_irq(cpm->irq, cpm_i2c_interrupt, 0, "cpm_i2c",
+			  &cpm->adap);
+	if (ret)
+		return ret;
+
+	/* I2C parameter RAM */
+	i2c_base = of_iomap(ofdev->node, 1);
+	if (i2c_base == NULL) {
+		ret = -EINVAL;
+		goto out_irq;
+	}
+
+	if (of_device_is_compatible(ofdev->node, "fsl,cpm1-i2c")) {
+
+		/* Check for and use a microcode relocation patch. */
+		cpm->i2c_ram = i2c_base;
+		cpm->i2c_addr = in_be16(&cpm->i2c_ram->rpbase);
+
+		/*
+		 * Maybe should use cpm_muram_alloc instead of hardcoding
+		 * this in micropatch.c
+		 */
+		if (cpm->i2c_addr) {
+			cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr);
+			iounmap(i2c_base);
+		}
+
+		cpm->version = 1;
+
+	} else if (of_device_is_compatible(ofdev->node, "fsl,cpm2-i2c")) {
+		cpm->i2c_addr = cpm_muram_alloc(sizeof(struct i2c_ram), 64);
+		cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr);
+		out_be16(i2c_base, cpm->i2c_addr);
+		iounmap(i2c_base);
+
+		cpm->version = 2;
+
+	} else {
+		iounmap(i2c_base);
+		ret = -EINVAL;
+		goto out_irq;
+	}
+
+	/* I2C control/status registers */
+	cpm->i2c_reg = of_iomap(ofdev->node, 0);
+	if (cpm->i2c_reg == NULL) {
+		ret = -EINVAL;
+		goto out_ram;
+	}
+
+	data = of_get_property(ofdev->node, "fsl,cpm-command", &len);
+	if (!data || len != 4) {
+		ret = -EINVAL;
+		goto out_reg;
+	}
+	cpm->cp_command = *data;
+
+	data = of_get_property(ofdev->node, "linux,i2c-class", &len);
+	if (data && len == 4)
+		cpm->adap.class = *data;
+
+	data = of_get_property(ofdev->node, "clock-frequency", &len);
+	if (data && len == 4)
+		cpm->freq = *data;
+	else
+		cpm->freq = 60000; /* use 60kHz i2c clock by default */
+
+	/*
+	 * Allocate space for CPM_MAXBD transmit and receive buffer
+	 * descriptors in the DP ram.
+	 */
+	cpm->dp_addr = cpm_muram_alloc(sizeof(cbd_t) * 2 * CPM_MAXBD, 8);
+	if (!cpm->dp_addr) {
+		ret = -ENOMEM;
+		goto out_reg;
+	}
+
+	cpm->tbase = cpm_muram_addr(cpm->dp_addr);
+	cpm->rbase = cpm_muram_addr(cpm->dp_addr + sizeof(cbd_t) * CPM_MAXBD);
+
+	/* Allocate TX and RX buffers */
+
+	tbdf = cpm->tbase;
+	rbdf = cpm->rbase;
+
+	for (i = 0; i < CPM_MAXBD; i++) {
+		cpm->rxbuf[i] = dma_alloc_coherent(
+			NULL, CPM_MAX_READ + 1, &cpm->rxdma[i], GFP_KERNEL);
+		if (!cpm->rxbuf[i]) {
+			ret = -ENOMEM;
+			goto out_muram;
+		}
+		out_be32(&rbdf[i].cbd_bufaddr, ((cpm->rxdma[i] + 1) & ~1));
+
+		cpm->txbuf[i] = (unsigned char *)dma_alloc_coherent(
+			NULL, CPM_MAX_READ + 1, &cpm->txdma[i], GFP_KERNEL);
+		if (!cpm->txbuf[i]) {
+			ret = -ENOMEM;
+			goto out_muram;
+		}
+		out_be32(&tbdf[i].cbd_bufaddr, cpm->txdma[i]);
+	}
+
+	/* Initialize Tx/Rx parameters. */
+
+	cpm_reset_i2c_params(cpm);
+
+	dev_dbg(&cpm->ofdev->dev, "i2c_ram 0x%p, i2c_addr 0x%04x, freq %d\n",
+		cpm->i2c_ram, cpm->i2c_addr, cpm->freq);
+	dev_dbg(&cpm->ofdev->dev, "tbase 0x%04x, rbase 0x%04x\n",
+		(u8 __iomem *)cpm->tbase - DPRAM_BASE,
+		(u8 __iomem *)cpm->rbase - DPRAM_BASE);
+
+	cpm_command(cpm->cp_command, CPM_CR_INIT_TRX);
+
+	/*
+	 * Select an invalid address. Just make sure we don't use loopback mode
+	 */
+	out_8(&cpm->i2c_reg->i2add, 0x7f << 1);
+
+	/*
+	 * PDIV is set to 00 in i2mod, so brgclk/32 is used as input to the
+	 * i2c baud rate generator. This is divided by 2 x (DIV + 3) to get
+	 * the actual i2c bus frequency.
+	 */
+	brg = get_brgfreq() / (32 * 2 * cpm->freq) - 3;
+	out_8(&cpm->i2c_reg->i2brg, brg);
+
+	out_8(&cpm->i2c_reg->i2mod, 0x00);
+	out_8(&cpm->i2c_reg->i2com, I2COM_MASTER);	/* Master mode */
+
+	/* Disable interrupts. */
+	out_8(&cpm->i2c_reg->i2cmr, 0);
+	out_8(&cpm->i2c_reg->i2cer, 0xff);
+
+	return 0;
+
+out_muram:
+	for (i = 0; i < CPM_MAXBD; i++) {
+		if (cpm->rxbuf[i])
+			dma_free_coherent(NULL, CPM_MAX_READ + 1,
+				cpm->rxbuf[i], cpm->rxdma[i]);
+		if (cpm->txbuf[i])
+			dma_free_coherent(NULL, CPM_MAX_READ + 1,
+				cpm->txbuf[i], cpm->txdma[i]);
+	}
+	cpm_muram_free(cpm->dp_addr);
+out_reg:
+	iounmap(cpm->i2c_reg);
+out_ram:
+	if ((cpm->version == 1) && (!cpm->i2c_addr))
+		iounmap(cpm->i2c_ram);
+	if (cpm->version == 2)
+		cpm_muram_free(cpm->i2c_addr);
+out_irq:
+	free_irq(cpm->irq, &cpm->adap);
+	return ret;
+}
+
+static void cpm_i2c_shutdown(struct cpm_i2c *cpm)
+{
+	int i;
+
+	/* Shut down I2C. */
+	clrbits8(&cpm->i2c_reg->i2mod, I2MOD_EN);
+
+	/* Disable interrupts */
+	out_8(&cpm->i2c_reg->i2cmr, 0);
+	out_8(&cpm->i2c_reg->i2cer, 0xff);
+
+	free_irq(cpm->irq, &cpm->adap);
+
+	/* Free all memory */
+	for (i = 0; i < CPM_MAXBD; i++) {
+		dma_free_coherent(NULL, CPM_MAX_READ + 1,
+			cpm->rxbuf[i], cpm->rxdma[i]);
+		dma_free_coherent(NULL, CPM_MAX_READ + 1,
+			cpm->txbuf[i], cpm->txdma[i]);
+	}
+
+	cpm_muram_free(cpm->dp_addr);
+	iounmap(cpm->i2c_reg);
+
+	if ((cpm->version == 1) && (!cpm->i2c_addr))
+		iounmap(cpm->i2c_ram);
+	if (cpm->version == 2)
+		cpm_muram_free(cpm->i2c_addr);
+}
+
+static int __devinit cpm_i2c_probe(struct of_device *ofdev,
+			 const struct of_device_id *match)
+{
+	int result, len;
+	struct cpm_i2c *cpm;
+	const u32 *data;
+
+	cpm = kzalloc(sizeof(struct cpm_i2c), GFP_KERNEL);
+	if (!cpm)
+		return -ENOMEM;
+
+	cpm->ofdev = ofdev;
+
+	dev_set_drvdata(&ofdev->dev, cpm);
+
+	cpm->adap = cpm_ops;
+	i2c_set_adapdata(&cpm->adap, cpm);
+	cpm->adap.dev.parent = &ofdev->dev;
+
+	result = cpm_i2c_setup(cpm);
+	if (result) {
+		dev_err(&ofdev->dev, "Unable to init hardware\n");
+		goto out_free;
+	}
+
+	/* register new adapter to i2c module... */
+
+	data = of_get_property(ofdev->node, "linux,i2c-index", &len);
+	if (data && len == 4) {
+		cpm->adap.nr = *data;
+		result = i2c_add_numbered_adapter(&cpm->adap);
+	} else
+		result = i2c_add_adapter(&cpm->adap);
+
+	if (result < 0) {
+		dev_err(&ofdev->dev, "Unable to register with I2C\n");
+		goto out_shut;
+	}
+
+	dev_dbg(&ofdev->dev, "hw routines for %s registered.\n",
+		cpm->adap.name);
+
+	/*
+	 * register OF I2C devices
+	 */
+	of_register_i2c_devices(&cpm->adap, ofdev->node);
+
+	return 0;
+out_shut:
+	cpm_i2c_shutdown(cpm);
+out_free:
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(cpm);
+
+	return result;
+}
+
+static int __devexit cpm_i2c_remove(struct of_device *ofdev)
+{
+	struct cpm_i2c *cpm = dev_get_drvdata(&ofdev->dev);
+
+	i2c_del_adapter(&cpm->adap);
+
+	cpm_i2c_shutdown(cpm);
+
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(cpm);
+
+	return 0;
+}
+
+static const struct of_device_id cpm_i2c_match[] = {
+	{
+		.compatible = "fsl,cpm1-i2c",
+	},
+	{
+		.compatible = "fsl,cpm2-i2c",
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, cpm_i2c_match);
+
+static struct of_platform_driver cpm_i2c_driver = {
+	.match_table	= cpm_i2c_match,
+	.probe		= cpm_i2c_probe,
+	.remove		= __devexit_p(cpm_i2c_remove),
+	.driver		= {
+		.name	= "fsl-i2c-cpm",
+		.owner	= THIS_MODULE,
+	}
+};
+
+static int __init cpm_i2c_init(void)
+{
+	return of_register_platform_driver(&cpm_i2c_driver);
+}
+
+static void __exit cpm_i2c_exit(void)
+{
+	of_unregister_platform_driver(&cpm_i2c_driver);
+}
+
+module_init(cpm_i2c_init);
+module_exit(cpm_i2c_exit);
+
+MODULE_AUTHOR("Jochen Friedrich <jochen@scram.de>");
+MODULE_DESCRIPTION("I2C-Bus adapter routines for CPM boards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 7ecbfc429b19..af3846eda985 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -85,6 +85,7 @@
 #define DAVINCI_I2C_MDR_MST	(1 << 10)
 #define DAVINCI_I2C_MDR_TRX	(1 << 9)
 #define DAVINCI_I2C_MDR_XA	(1 << 8)
+#define DAVINCI_I2C_MDR_RM	(1 << 7)
 #define DAVINCI_I2C_MDR_IRS	(1 << 5)
 
 #define DAVINCI_I2C_IMR_AAS	(1 << 6)
@@ -112,6 +113,7 @@ struct davinci_i2c_dev {
 	u8			*buf;
 	size_t			buf_len;
 	int			irq;
+	u8			terminate;
 	struct i2c_adapter	adapter;
 };
 
@@ -142,6 +144,7 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev)
 	struct davinci_i2c_platform_data *pdata = dev->dev->platform_data;
 	u16 psc;
 	u32 clk;
+	u32 d;
 	u32 clkh;
 	u32 clkl;
 	u32 input_clock = clk_get_rate(dev->clk);
@@ -171,23 +174,29 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev)
 	 *       if PSC > 1 , d = 5
 	 */
 
-	psc = 26; /* To get 1MHz clock */
+	/* get minimum of 7 MHz clock, but max of 12 MHz */
+	psc = (input_clock / 7000000) - 1;
+	if ((input_clock / (psc + 1)) > 12000000)
+		psc++;	/* better to run under spec than over */
+	d = (psc >= 2) ? 5 : 7 - psc;
 
-	clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - 10;
-	clkh = (50 * clk) / 100;
+	clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - (d << 1);
+	clkh = clk >> 1;
 	clkl = clk - clkh;
 
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_PSC_REG, psc);
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKH_REG, clkh);
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKL_REG, clkl);
 
-	dev_dbg(dev->dev, "CLK  = %d\n", clk);
+	dev_dbg(dev->dev, "input_clock = %d, CLK = %d\n", input_clock, clk);
 	dev_dbg(dev->dev, "PSC  = %d\n",
 		davinci_i2c_read_reg(dev, DAVINCI_I2C_PSC_REG));
 	dev_dbg(dev->dev, "CLKL = %d\n",
 		davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKL_REG));
 	dev_dbg(dev->dev, "CLKH = %d\n",
 		davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKH_REG));
+	dev_dbg(dev->dev, "bus_freq = %dkHz, bus_delay = %d\n",
+		pdata->bus_freq, pdata->bus_delay);
 
 	/* Take the I2C module out of reset: */
 	w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
@@ -233,7 +242,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 	struct davinci_i2c_dev *dev = i2c_get_adapdata(adap);
 	struct davinci_i2c_platform_data *pdata = dev->dev->platform_data;
 	u32 flag;
-	u32 stat;
 	u16 w;
 	int r;
 
@@ -254,12 +262,9 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_CNT_REG, dev->buf_len);
 
-	init_completion(&dev->cmd_complete);
+	INIT_COMPLETION(dev->cmd_complete);
 	dev->cmd_err = 0;
 
-	/* Clear any pending interrupts by reading the IVR */
-	stat = davinci_i2c_read_reg(dev, DAVINCI_I2C_IVR_REG);
-
 	/* Take I2C out of reset, configure it as master and set the
 	 * start bit */
 	flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT;
@@ -280,20 +285,34 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 		MOD_REG_BIT(w, DAVINCI_I2C_IMR_XRDY, 1);
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_IMR_REG, w);
 
+	dev->terminate = 0;
 	/* write the data into mode register */
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
 
 	r = wait_for_completion_interruptible_timeout(&dev->cmd_complete,
 						      DAVINCI_I2C_TIMEOUT);
-	dev->buf_len = 0;
-	if (r < 0)
-		return r;
-
 	if (r == 0) {
 		dev_err(dev->dev, "controller timed out\n");
 		i2c_davinci_init(dev);
+		dev->buf_len = 0;
 		return -ETIMEDOUT;
 	}
+	if (dev->buf_len) {
+		/* This should be 0 if all bytes were transferred
+		 * or dev->cmd_err denotes an error.
+		 * A signal may have aborted the transfer.
+		 */
+		if (r >= 0) {
+			dev_err(dev->dev, "abnormal termination buf_len=%i\n",
+				dev->buf_len);
+			r = -EREMOTEIO;
+		}
+		dev->terminate = 1;
+		wmb();
+		dev->buf_len = 0;
+	}
+	if (r < 0)
+		return r;
 
 	/* no error */
 	if (likely(!dev->cmd_err))
@@ -338,12 +357,11 @@ i2c_davinci_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
 	for (i = 0; i < num; i++) {
 		ret = i2c_davinci_xfer_msg(adap, &msgs[i], (i == (num - 1)));
+		dev_dbg(dev->dev, "%s [%d/%d] ret: %d\n", __func__, i + 1, num,
+			ret);
 		if (ret < 0)
 			return ret;
 	}
-
-	dev_dbg(dev->dev, "%s:%d ret: %d\n", __func__, __LINE__, ret);
-
 	return num;
 }
 
@@ -352,6 +370,27 @@ static u32 i2c_davinci_func(struct i2c_adapter *adap)
 	return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
 }
 
+static void terminate_read(struct davinci_i2c_dev *dev)
+{
+	u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
+	w |= DAVINCI_I2C_MDR_NACK;
+	davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
+
+	/* Throw away data */
+	davinci_i2c_read_reg(dev, DAVINCI_I2C_DRR_REG);
+	if (!dev->terminate)
+		dev_err(dev->dev, "RDR IRQ while no data requested\n");
+}
+static void terminate_write(struct davinci_i2c_dev *dev)
+{
+	u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
+	w |= DAVINCI_I2C_MDR_RM | DAVINCI_I2C_MDR_STP;
+	davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
+
+	if (!dev->terminate)
+		dev_err(dev->dev, "TDR IRQ while no data to send\n");
+}
+
 /*
  * Interrupt service routine. This gets called whenever an I2C interrupt
  * occurs.
@@ -372,12 +411,15 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
 
 		switch (stat) {
 		case DAVINCI_I2C_IVR_AL:
+			/* Arbitration lost, must retry */
 			dev->cmd_err |= DAVINCI_I2C_STR_AL;
+			dev->buf_len = 0;
 			complete(&dev->cmd_complete);
 			break;
 
 		case DAVINCI_I2C_IVR_NACK:
 			dev->cmd_err |= DAVINCI_I2C_STR_NACK;
+			dev->buf_len = 0;
 			complete(&dev->cmd_complete);
 			break;
 
@@ -399,9 +441,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
 				davinci_i2c_write_reg(dev,
 					DAVINCI_I2C_STR_REG,
 					DAVINCI_I2C_IMR_RRDY);
-			} else
-				dev_err(dev->dev, "RDR IRQ while no "
-					"data requested\n");
+			} else {
+				/* signal can terminate transfer */
+				terminate_read(dev);
+			}
 			break;
 
 		case DAVINCI_I2C_IVR_XRDY:
@@ -418,9 +461,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
 				davinci_i2c_write_reg(dev,
 						      DAVINCI_I2C_IMR_REG,
 						      w);
-			} else
-				dev_err(dev->dev, "TDR IRQ while no data to "
-					"send\n");
+			} else {
+				/* signal can terminate transfer */
+				terminate_write(dev);
+			}
 			break;
 
 		case DAVINCI_I2C_IVR_SCD:
@@ -475,6 +519,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
 		goto err_release_region;
 	}
 
+	init_completion(&dev->cmd_complete);
 	dev->dev = get_device(&pdev->dev);
 	dev->irq = irq->start;
 	platform_set_drvdata(pdev, dev);
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index b7a9977b025f..7f38c01fb3a0 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -196,13 +196,11 @@ static struct i2c_algo_pcf_data pcf_isa_data = {
 	.getown	    = pcf_isa_getown,
 	.getclock   = pcf_isa_getclock,
 	.waitforpin = pcf_isa_waitforpin,
-	.udelay	    = 10,
-	.timeout    = 100,
 };
 
 static struct i2c_adapter pcf_isa_ops = {
 	.owner		= THIS_MODULE,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.id		= I2C_HW_P_ELEK,
 	.algo_data	= &pcf_isa_data,
 	.name		= "i2c-elektor",
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 7c1b762aa681..79b455a1f090 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -140,7 +140,7 @@ static int __init i2c_gpio_probe(struct platform_device *pdev)
 	adap->owner = THIS_MODULE;
 	snprintf(adap->name, sizeof(adap->name), "i2c-gpio%d", pdev->id);
 	adap->algo_data = bit_data;
-	adap->class = I2C_CLASS_HWMON;
+	adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	adap->dev.parent = &pdev->dev;
 
 	/*
diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c
index f9972f9651e4..1098f21ace13 100644
--- a/drivers/i2c/busses/i2c-hydra.c
+++ b/drivers/i2c/busses/i2c-hydra.c
@@ -1,7 +1,4 @@
 /*
-    i2c-hydra.c - Part of lm_sensors,  Linux kernel modules
-                  for hardware monitoring
-
     i2c Support for the Apple `Hydra' Mac I/O
 
     Copyright (c) 1999-2004 Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index b0f771fe4326..dc7ea32b69a8 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1,10 +1,8 @@
 /*
-    i2c-i801.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker
     <mdsxyz123@yahoo.com>
-    Copyright (C) 2007         Jean Delvare <khali@linux-fr.org>
+    Copyright (C) 2007, 2008   Jean Delvare <khali@linux-fr.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -64,6 +62,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* I801 SMBus address offsets */
@@ -121,6 +120,10 @@
 #define SMBHSTSTS_INTR		0x02
 #define SMBHSTSTS_HOST_BUSY	0x01
 
+#define STATUS_FLAGS		(SMBHSTSTS_BYTE_DONE | SMBHSTSTS_FAILED | \
+				 SMBHSTSTS_BUS_ERR | SMBHSTSTS_DEV_ERR | \
+				 SMBHSTSTS_INTR)
+
 static unsigned long i801_smba;
 static unsigned char i801_original_hstcfg;
 static struct pci_driver i801_driver;
@@ -132,105 +135,137 @@ static struct pci_dev *I801_dev;
 #define FEATURE_I2C_BLOCK_READ	(1 << 3)
 static unsigned int i801_features;
 
-static int i801_transaction(int xact)
+/* Make sure the SMBus host is ready to start transmitting.
+   Return 0 if it is, -EBUSY if it is not. */
+static int i801_check_pre(void)
 {
-	int temp;
-	int result = 0;
-	int timeout = 0;
+	int status;
 
-	dev_dbg(&I801_dev->dev, "Transaction (pre): CNT=%02x, CMD=%02x, "
-		"ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
-		inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
-		inb_p(SMBHSTDAT1));
-
-	/* Make sure the SMBus host is ready to start transmitting */
-	/* 0x1f = Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
-	if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-		dev_dbg(&I801_dev->dev, "SMBus busy (%02x). Resetting...\n",
-			temp);
-		outb_p(temp, SMBHSTSTS);
-		if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-			dev_dbg(&I801_dev->dev, "Failed! (%02x)\n", temp);
-			return -1;
-		} else {
-			dev_dbg(&I801_dev->dev, "Successful!\n");
+	status = inb_p(SMBHSTSTS);
+	if (status & SMBHSTSTS_HOST_BUSY) {
+		dev_err(&I801_dev->dev, "SMBus is busy, can't use it!\n");
+		return -EBUSY;
+	}
+
+	status &= STATUS_FLAGS;
+	if (status) {
+		dev_dbg(&I801_dev->dev, "Clearing status flags (%02x)\n",
+			status);
+		outb_p(status, SMBHSTSTS);
+		status = inb_p(SMBHSTSTS) & STATUS_FLAGS;
+		if (status) {
+			dev_err(&I801_dev->dev,
+				"Failed clearing status flags (%02x)\n",
+				status);
+			return -EBUSY;
 		}
 	}
 
-	/* the current contents of SMBHSTCNT can be overwritten, since PEC,
-	 * INTREN, SMBSCMD are passed in xact */
-	outb_p(xact | I801_START, SMBHSTCNT);
+	return 0;
+}
 
-	/* We will always wait for a fraction of a second! */
-	do {
-		msleep(1);
-		temp = inb_p(SMBHSTSTS);
-	} while ((temp & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT));
+/* Convert the status register to an error code, and clear it. */
+static int i801_check_post(int status, int timeout)
+{
+	int result = 0;
 
 	/* If the SMBus is still busy, we give up */
-	if (timeout >= MAX_TIMEOUT) {
-		dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
-		result = -1;
+	if (timeout) {
+		dev_err(&I801_dev->dev, "Transaction timeout\n");
 		/* try to stop the current command */
 		dev_dbg(&I801_dev->dev, "Terminating the current operation\n");
 		outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT);
 		msleep(1);
 		outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL), SMBHSTCNT);
-	}
 
-	if (temp & SMBHSTSTS_FAILED) {
-		result = -1;
-		dev_dbg(&I801_dev->dev, "Error: Failed bus transaction\n");
+		/* Check if it worked */
+		status = inb_p(SMBHSTSTS);
+		if ((status & SMBHSTSTS_HOST_BUSY) ||
+		    !(status & SMBHSTSTS_FAILED))
+			dev_err(&I801_dev->dev,
+				"Failed terminating the transaction\n");
+		outb_p(STATUS_FLAGS, SMBHSTSTS);
+		return -ETIMEDOUT;
 	}
 
-	if (temp & SMBHSTSTS_BUS_ERR) {
-		result = -1;
-		dev_err(&I801_dev->dev, "Bus collision! SMBus may be locked "
-			"until next hard reset. (sorry!)\n");
-		/* Clock stops and slave is stuck in mid-transmission */
+	if (status & SMBHSTSTS_FAILED) {
+		result = -EIO;
+		dev_err(&I801_dev->dev, "Transaction failed\n");
 	}
-
-	if (temp & SMBHSTSTS_DEV_ERR) {
-		result = -1;
-		dev_dbg(&I801_dev->dev, "Error: no response!\n");
+	if (status & SMBHSTSTS_DEV_ERR) {
+		result = -ENXIO;
+		dev_dbg(&I801_dev->dev, "No response\n");
+	}
+	if (status & SMBHSTSTS_BUS_ERR) {
+		result = -EAGAIN;
+		dev_dbg(&I801_dev->dev, "Lost arbitration\n");
 	}
 
-	if ((inb_p(SMBHSTSTS) & 0x1f) != 0x00)
-		outb_p(inb(SMBHSTSTS), SMBHSTSTS);
-
-	if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-		dev_dbg(&I801_dev->dev, "Failed reset at end of transaction "
-			"(%02x)\n", temp);
+	if (result) {
+		/* Clear error flags */
+		outb_p(status & STATUS_FLAGS, SMBHSTSTS);
+		status = inb_p(SMBHSTSTS) & STATUS_FLAGS;
+		if (status) {
+			dev_warn(&I801_dev->dev, "Failed clearing status "
+				 "flags at end of transaction (%02x)\n",
+				 status);
+		}
 	}
-	dev_dbg(&I801_dev->dev, "Transaction (post): CNT=%02x, CMD=%02x, "
-		"ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
-		inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
-		inb_p(SMBHSTDAT1));
+
 	return result;
 }
 
+static int i801_transaction(int xact)
+{
+	int status;
+	int result;
+	int timeout = 0;
+
+	result = i801_check_pre();
+	if (result < 0)
+		return result;
+
+	/* the current contents of SMBHSTCNT can be overwritten, since PEC,
+	 * INTREN, SMBSCMD are passed in xact */
+	outb_p(xact | I801_START, SMBHSTCNT);
+
+	/* We will always wait for a fraction of a second! */
+	do {
+		msleep(1);
+		status = inb_p(SMBHSTSTS);
+	} while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT));
+
+	result = i801_check_post(status, timeout >= MAX_TIMEOUT);
+	if (result < 0)
+		return result;
+
+	outb_p(SMBHSTSTS_INTR, SMBHSTSTS);
+	return 0;
+}
+
 /* wait for INTR bit as advised by Intel */
 static void i801_wait_hwpec(void)
 {
 	int timeout = 0;
-	int temp;
+	int status;
 
 	do {
 		msleep(1);
-		temp = inb_p(SMBHSTSTS);
-	} while ((!(temp & SMBHSTSTS_INTR))
+		status = inb_p(SMBHSTSTS);
+	} while ((!(status & SMBHSTSTS_INTR))
 		 && (timeout++ < MAX_TIMEOUT));
 
 	if (timeout >= MAX_TIMEOUT) {
 		dev_dbg(&I801_dev->dev, "PEC Timeout!\n");
 	}
-	outb_p(temp, SMBHSTSTS);
+	outb_p(status, SMBHSTSTS);
 }
 
 static int i801_block_transaction_by_block(union i2c_smbus_data *data,
 					   char read_write, int hwpec)
 {
 	int i, len;
+	int status;
 
 	inb_p(SMBHSTCNT); /* reset the data buffer index */
 
@@ -242,14 +277,15 @@ static int i801_block_transaction_by_block(union i2c_smbus_data *data,
 			outb_p(data->block[i+1], SMBBLKDAT);
 	}
 
-	if (i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 |
-			     I801_PEC_EN * hwpec))
-		return -1;
+	status = i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 |
+				  I801_PEC_EN * hwpec);
+	if (status)
+		return status;
 
 	if (read_write == I2C_SMBUS_READ) {
 		len = inb_p(SMBHSTDAT0);
 		if (len < 1 || len > I2C_SMBUS_BLOCK_MAX)
-			return -1;
+			return -EPROTO;
 
 		data->block[0] = len;
 		for (i = 0; i < len; i++)
@@ -264,10 +300,13 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
 {
 	int i, len;
 	int smbcmd;
-	int temp;
-	int result = 0;
+	int status;
+	int result;
 	int timeout;
-	unsigned char errmask;
+
+	result = i801_check_pre();
+	if (result < 0)
+		return result;
 
 	len = data->block[0];
 
@@ -291,36 +330,6 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
 		}
 		outb_p(smbcmd | ENABLE_INT9, SMBHSTCNT);
 
-		dev_dbg(&I801_dev->dev, "Block (pre %d): CNT=%02x, CMD=%02x, "
-			"ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i,
-			inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
-			inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT));
-
-		/* Make sure the SMBus host is ready to start transmitting */
-		temp = inb_p(SMBHSTSTS);
-		if (i == 1) {
-			/* Erroneous conditions before transaction:
-			 * Byte_Done, Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
-			errmask = 0x9f;
-		} else {
-			/* Erroneous conditions during transaction:
-			 * Failed, Bus_Err, Dev_Err, Intr */
-			errmask = 0x1e;
-		}
-		if (temp & errmask) {
-			dev_dbg(&I801_dev->dev, "SMBus busy (%02x). "
-				"Resetting...\n", temp);
-			outb_p(temp, SMBHSTSTS);
-			if (((temp = inb_p(SMBHSTSTS)) & errmask) != 0x00) {
-				dev_err(&I801_dev->dev,
-					"Reset failed! (%02x)\n", temp);
-				return -1;
-			}
-			if (i != 1)
-				/* if die in middle of block transaction, fail */
-				return -1;
-		}
-
 		if (i == 1)
 			outb_p(inb(SMBHSTCNT) | I801_START, SMBHSTCNT);
 
@@ -328,41 +337,28 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
 		timeout = 0;
 		do {
 			msleep(1);
-			temp = inb_p(SMBHSTSTS);
+			status = inb_p(SMBHSTSTS);
 		}
-		while ((!(temp & SMBHSTSTS_BYTE_DONE))
+		while ((!(status & SMBHSTSTS_BYTE_DONE))
 		       && (timeout++ < MAX_TIMEOUT));
 
-		/* If the SMBus is still busy, we give up */
-		if (timeout >= MAX_TIMEOUT) {
-			/* try to stop the current command */
-			dev_dbg(&I801_dev->dev, "Terminating the current "
-						"operation\n");
-			outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT);
-			msleep(1);
-			outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL),
-				SMBHSTCNT);
-			result = -1;
-			dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
-		}
-
-		if (temp & SMBHSTSTS_FAILED) {
-			result = -1;
-			dev_dbg(&I801_dev->dev,
-				"Error: Failed bus transaction\n");
-		} else if (temp & SMBHSTSTS_BUS_ERR) {
-			result = -1;
-			dev_err(&I801_dev->dev, "Bus collision!\n");
-		} else if (temp & SMBHSTSTS_DEV_ERR) {
-			result = -1;
-			dev_dbg(&I801_dev->dev, "Error: no response!\n");
-		}
+		result = i801_check_post(status, timeout >= MAX_TIMEOUT);
+		if (result < 0)
+			return result;
 
 		if (i == 1 && read_write == I2C_SMBUS_READ
 		 && command != I2C_SMBUS_I2C_BLOCK_DATA) {
 			len = inb_p(SMBHSTDAT0);
-			if (len < 1 || len > I2C_SMBUS_BLOCK_MAX)
-				return -1;
+			if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) {
+				dev_err(&I801_dev->dev,
+					"Illegal SMBus block read size %d\n",
+					len);
+				/* Recover */
+				while (inb_p(SMBHSTSTS) & SMBHSTSTS_HOST_BUSY)
+					outb_p(SMBHSTSTS_BYTE_DONE, SMBHSTSTS);
+				outb_p(SMBHSTSTS_INTR, SMBHSTSTS);
+				return -EPROTO;
+			}
 			data->block[0] = len;
 		}
 
@@ -371,30 +367,19 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
 			data->block[i] = inb_p(SMBBLKDAT);
 		if (read_write == I2C_SMBUS_WRITE && i+1 <= len)
 			outb_p(data->block[i+1], SMBBLKDAT);
-		if ((temp & 0x9e) != 0x00)
-			outb_p(temp, SMBHSTSTS);  /* signals SMBBLKDAT ready */
-
-		if ((temp = (0x1e & inb_p(SMBHSTSTS))) != 0x00) {
-			dev_dbg(&I801_dev->dev,
-				"Bad status (%02x) at end of transaction\n",
-				temp);
-		}
-		dev_dbg(&I801_dev->dev, "Block (post %d): CNT=%02x, CMD=%02x, "
-			"ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i,
-			inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
-			inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT));
 
-		if (result < 0)
-			return result;
+		/* signals SMBBLKDAT ready */
+		outb_p(SMBHSTSTS_BYTE_DONE | SMBHSTSTS_INTR, SMBHSTSTS);
 	}
-	return result;
+
+	return 0;
 }
 
 static int i801_set_block_buffer_mode(void)
 {
 	outb_p(inb_p(SMBAUXCTL) | SMBAUXCTL_E32B, SMBAUXCTL);
 	if ((inb_p(SMBAUXCTL) & SMBAUXCTL_E32B) == 0)
-		return -1;
+		return -EIO;
 	return 0;
 }
 
@@ -414,7 +399,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
 		} else if (!(i801_features & FEATURE_I2C_BLOCK_READ)) {
 			dev_err(&I801_dev->dev,
 				"I2C block read is unsupported!\n");
-			return -1;
+			return -EOPNOTSUPP;
 		}
 	}
 
@@ -449,7 +434,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 i801_access(struct i2c_adapter * adap, u16 addr,
 		       unsigned short flags, char read_write, u8 command,
 		       int size, union i2c_smbus_data * data)
@@ -511,10 +496,9 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
 			outb_p(command, SMBHSTCMD);
 		block = 1;
 		break;
-	case I2C_SMBUS_PROC_CALL:
 	default:
 		dev_err(&I801_dev->dev, "Unsupported transaction %d\n", size);
-		return -1;
+		return -EOPNOTSUPP;
 	}
 
 	if (hwpec)	/* enable/disable hardware PEC */
@@ -537,7 +521,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
 	if(block)
 		return ret;
 	if(ret)
-		return -1;
+		return ret;
 	if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
 		return 0;
 
@@ -572,7 +556,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter i801_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_I801,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
@@ -639,6 +623,10 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
 		goto exit;
 	}
 
+	err = acpi_check_resource_conflict(&dev->resource[SMBBAR]);
+	if (err)
+		goto exit;
+
 	err = pci_request_region(dev, SMBBAR, i801_driver.name);
 	if (err) {
 		dev_err(&dev->dev, "Failed to request SMBus region "
diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c
deleted file mode 100644
index 42e8d94c276f..000000000000
--- a/drivers/i2c/busses/i2c-i810.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
-    i2c-i810.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-    Copyright (c) 1998, 1999, 2000  Frodo Looijaard <frodol@dds.nl>,
-    Philip Edelbrock <phil@netroedge.com>,
-    Ralph Metzler <rjkm@thp.uni-koeln.de>, and
-    Mark D. Studebaker <mdsxyz123@yahoo.com>
-    
-    Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
-    Simon Vogl
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-/*
-   This interfaces to the I810/I815 to provide access to
-   the DDC Bus and the I2C Bus.
-
-   SUPPORTED DEVICES	PCI ID
-   i810AA		7121           
-   i810AB		7123           
-   i810E		7125           
-   i815			1132           
-   i845G		2562
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/* GPIO register locations */
-#define I810_IOCONTROL_OFFSET	0x5000
-#define I810_HVSYNC		0x00	/* not used */
-#define I810_GPIOA		0x10
-#define I810_GPIOB		0x14
-
-/* bit locations in the registers */
-#define SCL_DIR_MASK		0x0001
-#define SCL_DIR			0x0002
-#define SCL_VAL_MASK		0x0004
-#define SCL_VAL_OUT		0x0008
-#define SCL_VAL_IN		0x0010
-#define SDA_DIR_MASK		0x0100
-#define SDA_DIR			0x0200
-#define SDA_VAL_MASK		0x0400
-#define SDA_VAL_OUT		0x0800
-#define SDA_VAL_IN		0x1000
-
-/* initialization states */
-#define INIT1			0x1
-#define INIT2			0x2
-#define INIT3			0x4
-
-/* delays */
-#define CYCLE_DELAY		10
-#define TIMEOUT			(HZ / 2)
-
-static void __iomem *ioaddr;
-
-/* The i810 GPIO registers have individual masks for each bit
-   so we never have to read before writing. Nice. */
-
-static void bit_i810i2c_setscl(void *data, int val)
-{
-	writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
-	     ioaddr + I810_GPIOB);
-	readl(ioaddr + I810_GPIOB);	/* flush posted write */
-}
-
-static void bit_i810i2c_setsda(void *data, int val)
-{
- 	writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
-	     ioaddr + I810_GPIOB);
-	readl(ioaddr + I810_GPIOB);	/* flush posted write */
-}
-
-/* The GPIO pins are open drain, so the pins could always remain outputs.
-   However, some chip versions don't latch the inputs unless they
-   are set as inputs.
-   We rely on the i2c-algo-bit routines to set the pins high before
-   reading the input from other chips. Following guidance in the 815
-   prog. ref. guide, we do a "dummy write" of 0 to the register before
-   reading which forces the input value to be latched. We presume this
-   applies to the 810 as well; shouldn't hurt anyway. This is necessary to get
-   i2c_algo_bit bit_test=1 to pass. */
-
-static int bit_i810i2c_getscl(void *data)
-{
-	writel(SCL_DIR_MASK, ioaddr + I810_GPIOB);
-	writel(0, ioaddr + I810_GPIOB);
-	return (0 != (readl(ioaddr + I810_GPIOB) & SCL_VAL_IN));
-}
-
-static int bit_i810i2c_getsda(void *data)
-{
-	writel(SDA_DIR_MASK, ioaddr + I810_GPIOB);
-	writel(0, ioaddr + I810_GPIOB);
-	return (0 != (readl(ioaddr + I810_GPIOB) & SDA_VAL_IN));
-}
-
-static void bit_i810ddc_setscl(void *data, int val)
-{
-	writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
-	     ioaddr + I810_GPIOA);
-	readl(ioaddr + I810_GPIOA);	/* flush posted write */
-}
-
-static void bit_i810ddc_setsda(void *data, int val)
-{
- 	writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
-	     ioaddr + I810_GPIOA);
-	readl(ioaddr + I810_GPIOA);	/* flush posted write */
-}
-
-static int bit_i810ddc_getscl(void *data)
-{
-	writel(SCL_DIR_MASK, ioaddr + I810_GPIOA);
-	writel(0, ioaddr + I810_GPIOA);
-	return (0 != (readl(ioaddr + I810_GPIOA) & SCL_VAL_IN));
-}
-
-static int bit_i810ddc_getsda(void *data)
-{
-	writel(SDA_DIR_MASK, ioaddr + I810_GPIOA);
-	writel(0, ioaddr + I810_GPIOA);
-	return (0 != (readl(ioaddr + I810_GPIOA) & SDA_VAL_IN));
-}
-
-static int config_i810(struct pci_dev *dev)
-{
-	unsigned long cadr;
-
-	/* map I810 memory */
-	cadr = dev->resource[1].start;
-	cadr += I810_IOCONTROL_OFFSET;
-	cadr &= PCI_BASE_ADDRESS_MEM_MASK;
-	ioaddr = ioremap_nocache(cadr, 0x1000);
-	if (ioaddr) {
-		bit_i810i2c_setscl(NULL, 1);
-		bit_i810i2c_setsda(NULL, 1);
-		bit_i810ddc_setscl(NULL, 1);
-		bit_i810ddc_setsda(NULL, 1);
-		return 0;
-	}
-	return -ENODEV;
-}
-
-static struct i2c_algo_bit_data i810_i2c_bit_data = {
-	.setsda		= bit_i810i2c_setsda,
-	.setscl		= bit_i810i2c_setscl,
-	.getsda		= bit_i810i2c_getsda,
-	.getscl		= bit_i810i2c_getscl,
-	.udelay		= CYCLE_DELAY,
-	.timeout	= TIMEOUT,
-};
-
-static struct i2c_adapter i810_i2c_adapter = {
-	.owner		= THIS_MODULE,
-	.id		= I2C_HW_B_I810,
-	.name		= "I810/I815 I2C Adapter",
-	.algo_data	= &i810_i2c_bit_data,
-};
-
-static struct i2c_algo_bit_data i810_ddc_bit_data = {
-	.setsda		= bit_i810ddc_setsda,
-	.setscl		= bit_i810ddc_setscl,
-	.getsda		= bit_i810ddc_getsda,
-	.getscl		= bit_i810ddc_getscl,
-	.udelay		= CYCLE_DELAY,
-	.timeout	= TIMEOUT,
-};
-
-static struct i2c_adapter i810_ddc_adapter = {
-	.owner		= THIS_MODULE,
-	.id		= I2C_HW_B_I810,
-	.name		= "I810/I815 DDC Adapter",
-	.algo_data	= &i810_ddc_bit_data,
-};
-
-static struct pci_device_id i810_ids[] __devinitdata = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG) },
-	{ 0, },
-};
-
-MODULE_DEVICE_TABLE (pci, i810_ids);
-
-static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	int retval;
-
-	retval = config_i810(dev);
-	if (retval)
-		return retval;
-	dev_info(&dev->dev, "i810/i815 i2c device found.\n");
-
-	/* set up the sysfs linkage to our parent device */
-	i810_i2c_adapter.dev.parent = &dev->dev;
-	i810_ddc_adapter.dev.parent = &dev->dev;
-
-	retval = i2c_bit_add_bus(&i810_i2c_adapter);
-	if (retval)
-		return retval;
-	retval = i2c_bit_add_bus(&i810_ddc_adapter);
-	if (retval)
-		i2c_del_adapter(&i810_i2c_adapter);
-	return retval;
-}
-
-static void __devexit i810_remove(struct pci_dev *dev)
-{
-	i2c_del_adapter(&i810_ddc_adapter);
-	i2c_del_adapter(&i810_i2c_adapter);
-	iounmap(ioaddr);
-}
-
-static struct pci_driver i810_driver = {
-	.name		= "i810_smbus",
-	.id_table	= i810_ids,
-	.probe		= i810_probe,
-	.remove		= __devexit_p(i810_remove),
-};
-
-static int __init i2c_i810_init(void)
-{
-	return pci_register_driver(&i810_driver);
-}
-
-static void __exit i2c_i810_exit(void)
-{
-	pci_unregister_driver(&i810_driver);
-}
-
-MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
-		"Philip Edelbrock <phil@netroedge.com>, "
-		"Ralph Metzler <rjkm@thp.uni-koeln.de>, "
-		"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
-MODULE_DESCRIPTION("I810/I815 I2C/DDC driver");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_i810_init);
-module_exit(i2c_i810_exit);
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 85dbf34382e1..070f078b5f5c 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -42,13 +42,7 @@
 #include <asm/io.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-
-#ifdef CONFIG_IBM_OCP
-#include <asm/ocp.h>
-#include <asm/ibm4xx.h>
-#else
 #include <linux/of_platform.h>
-#endif
 
 #include "i2c-ibm_iic.h"
 
@@ -665,180 +659,6 @@ static inline u8 iic_clckdiv(unsigned int opb)
 	return (u8)((opb + 9) / 10 - 1);
 }
 
-#ifdef CONFIG_IBM_OCP
-/*
- * Register single IIC interface
- */
-static int __devinit iic_probe(struct ocp_device *ocp){
-
-	struct ibm_iic_private* dev;
-	struct i2c_adapter* adap;
-	struct ocp_func_iic_data* iic_data = ocp->def->additions;
-	int ret;
-
-	if (!iic_data)
-		printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
-			ocp->def->index);
-
-	if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) {
-		printk(KERN_ERR "ibm-iic%d: failed to allocate device data\n",
-			ocp->def->index);
-		return -ENOMEM;
-	}
-
-	dev->idx = ocp->def->index;
-	ocp_set_drvdata(ocp, dev);
-
-	if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
-				"ibm_iic")) {
-		ret = -EBUSY;
-		goto fail1;
-	}
-
-	if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
-		printk(KERN_ERR "ibm-iic%d: failed to ioremap device registers\n",
-			dev->idx);
-		ret = -ENXIO;
-		goto fail2;
-	}
-
-	init_waitqueue_head(&dev->wq);
-
-	dev->irq = iic_force_poll ? -1 : ocp->def->irq;
-	if (dev->irq >= 0){
-		/* Disable interrupts until we finish initialization,
-		   assumes level-sensitive IRQ setup...
-		 */
-		iic_interrupt_mode(dev, 0);
-		if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
-			printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
-				dev->idx, dev->irq);
-			/* Fallback to the polling mode */
-			dev->irq = -1;
-		}
-	}
-
-	if (dev->irq < 0)
-		printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
-			dev->idx);
-
-	/* Board specific settings */
-	dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0);
-
-	/* clckdiv is the same for *all* IIC interfaces,
-	 * but I'd rather make a copy than introduce another global. --ebs
-	 */
-	dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq);
-	DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
-
-	/* Initialize IIC interface */
-	iic_dev_init(dev);
-
-	/* Register it with i2c layer */
-	adap = &dev->adap;
-	adap->dev.parent = &ocp->dev;
-	strcpy(adap->name, "IBM IIC");
-	i2c_set_adapdata(adap, dev);
-	adap->id = I2C_HW_OCP;
-	adap->class = I2C_CLASS_HWMON;
-	adap->algo = &iic_algo;
-	adap->client_register = NULL;
-	adap->client_unregister = NULL;
-	adap->timeout = 1;
-
-	/*
-	 * If "dev->idx" is negative we consider it as zero.
-	 * The reason to do so is to avoid sysfs names that only make
-	 * sense when there are multiple adapters.
-	 */
-	adap->nr = dev->idx >= 0 ? dev->idx : 0;
-
-	if ((ret = i2c_add_numbered_adapter(adap)) < 0) {
-		printk(KERN_ERR "ibm-iic%d: failed to register i2c adapter\n",
-			dev->idx);
-		goto fail;
-	}
-
-	printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
-		dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
-
-	return 0;
-
-fail:
-	if (dev->irq >= 0){
-		iic_interrupt_mode(dev, 0);
-		free_irq(dev->irq, dev);
-	}
-
-	iounmap(dev->vaddr);
-fail2:
-	release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
-fail1:
-	ocp_set_drvdata(ocp, NULL);
-	kfree(dev);
-	return ret;
-}
-
-/*
- * Cleanup initialized IIC interface
- */
-static void __devexit iic_remove(struct ocp_device *ocp)
-{
-	struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp);
-	BUG_ON(dev == NULL);
-	if (i2c_del_adapter(&dev->adap)){
-		printk(KERN_ERR "ibm-iic%d: failed to delete i2c adapter :(\n",
-			dev->idx);
-		/* That's *very* bad, just shutdown IRQ ... */
-		if (dev->irq >= 0){
-		    iic_interrupt_mode(dev, 0);
-		    free_irq(dev->irq, dev);
-		    dev->irq = -1;
-		}
-	} else {
-		if (dev->irq >= 0){
-		    iic_interrupt_mode(dev, 0);
-		    free_irq(dev->irq, dev);
-		}
-		iounmap(dev->vaddr);
-		release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
-		kfree(dev);
-	}
-}
-
-static struct ocp_device_id ibm_iic_ids[] __devinitdata =
-{
-	{ .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC },
-	{ .vendor = OCP_VENDOR_INVALID }
-};
-
-MODULE_DEVICE_TABLE(ocp, ibm_iic_ids);
-
-static struct ocp_driver ibm_iic_driver =
-{
-	.name 		= "iic",
-	.id_table	= ibm_iic_ids,
-	.probe		= iic_probe,
-	.remove		= __devexit_p(iic_remove),
-#if defined(CONFIG_PM)
-	.suspend	= NULL,
-	.resume		= NULL,
-#endif
-};
-
-static int __init iic_init(void)
-{
-	printk(KERN_INFO "IBM IIC driver v" DRIVER_VERSION "\n");
-	return ocp_register_driver(&ibm_iic_driver);
-}
-
-static void __exit iic_exit(void)
-{
-	ocp_unregister_driver(&ibm_iic_driver);
-}
-
-#else  /* !CONFIG_IBM_OCP */
-
 static int __devinit iic_request_irq(struct of_device *ofdev,
 				     struct ibm_iic_private *dev)
 {
@@ -934,7 +754,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
 	strlcpy(adap->name, "IBM IIC", sizeof(adap->name));
 	i2c_set_adapdata(adap, dev);
 	adap->id = I2C_HW_OCP;
-	adap->class = I2C_CLASS_HWMON;
+	adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	adap->algo = &iic_algo;
 	adap->timeout = 1;
 	adap->nr = dev->idx;
@@ -987,11 +807,7 @@ static int __devexit iic_remove(struct of_device *ofdev)
 }
 
 static const struct of_device_id ibm_iic_match[] = {
-	{ .compatible = "ibm,iic-405ex", },
-	{ .compatible = "ibm,iic-405gp", },
-	{ .compatible = "ibm,iic-440gp", },
-	{ .compatible = "ibm,iic-440gpx", },
-	{ .compatible = "ibm,iic-440grx", },
+	{ .compatible = "ibm,iic", },
 	{}
 };
 
@@ -1011,7 +827,6 @@ static void __exit iic_exit(void)
 {
 	of_unregister_platform_driver(&ibm_iic_driver);
 }
-#endif /* CONFIG_IBM_OCP */
 
 module_init(iic_init);
 module_exit(iic_exit);
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index 39884e797594..fc2714ac0c0f 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -482,7 +482,7 @@ iop3xx_i2c_probe(struct platform_device *pdev)
 	memcpy(new_adapter->name, pdev->name, strlen(pdev->name));
 	new_adapter->id = I2C_HW_IOP3XX;
 	new_adapter->owner = THIS_MODULE;
-	new_adapter->class = I2C_CLASS_HWMON;
+	new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	new_adapter->dev.parent = &pdev->dev;
 	new_adapter->nr = pdev->id;
 
diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c
new file mode 100644
index 000000000000..b9c01aa90036
--- /dev/null
+++ b/drivers/i2c/busses/i2c-isch.c
@@ -0,0 +1,339 @@
+/*
+    i2c-isch.c - Linux kernel driver for Intel SCH chipset SMBus
+    - Based on i2c-piix4.c
+    Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and
+    Philip Edelbrock <phil@netroedge.com>
+    - Intel SCH support
+    Copyright (c) 2007 - 2008 Jacob Jun Pan <jacob.jun.pan@intel.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License version 2 as
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+   Supports:
+	Intel SCH chipsets (AF82US15W, AF82US15L, AF82UL11L)
+   Note: we assume there can only be one device, with one SMBus interface.
+*/
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/stddef.h>
+#include <linux/ioport.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/acpi.h>
+
+/* SCH SMBus address offsets */
+#define SMBHSTCNT	(0 + sch_smba)
+#define SMBHSTSTS	(1 + sch_smba)
+#define SMBHSTADD	(4 + sch_smba) /* TSA */
+#define SMBHSTCMD	(5 + sch_smba)
+#define SMBHSTDAT0	(6 + sch_smba)
+#define SMBHSTDAT1	(7 + sch_smba)
+#define SMBBLKDAT	(0x20 + sch_smba)
+
+/* count for request_region */
+#define SMBIOSIZE	64
+
+/* PCI Address Constants */
+#define SMBBA_SCH	0x40
+
+/* Other settings */
+#define MAX_TIMEOUT	500
+
+/* I2C constants */
+#define SCH_QUICK		0x00
+#define SCH_BYTE		0x01
+#define SCH_BYTE_DATA		0x02
+#define SCH_WORD_DATA		0x03
+#define SCH_BLOCK_DATA		0x05
+
+static unsigned short sch_smba;
+static struct pci_driver sch_driver;
+static struct i2c_adapter sch_adapter;
+
+/*
+ * Start the i2c transaction -- the i2c_access will prepare the transaction
+ * and this function will execute it.
+ * return 0 for success and others for failure.
+ */
+static int sch_transaction(void)
+{
+	int temp;
+	int result = 0;
+	int timeout = 0;
+
+	dev_dbg(&sch_adapter.dev, "Transaction (pre): CNT=%02x, CMD=%02x, "
+		"ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT),
+		inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0),
+		inb(SMBHSTDAT1));
+
+	/* Make sure the SMBus host is ready to start transmitting */
+	temp = inb(SMBHSTSTS) & 0x0f;
+	if (temp) {
+		/* Can not be busy since we checked it in sch_access */
+		if (temp & 0x01) {
+			dev_dbg(&sch_adapter.dev, "Completion (%02x). "
+				"Clear...\n", temp);
+		}
+		if (temp & 0x06) {
+			dev_dbg(&sch_adapter.dev, "SMBus error (%02x). "
+				"Resetting...\n", temp);
+		}
+		outb(temp, SMBHSTSTS);
+		temp = inb(SMBHSTSTS) & 0x0f;
+		if (temp) {
+			dev_err(&sch_adapter.dev,
+				"SMBus is not ready: (%02x)\n", temp);
+			return -EAGAIN;
+		}
+	}
+
+	/* start the transaction by setting bit 4 */
+	outb(inb(SMBHSTCNT) | 0x10, SMBHSTCNT);
+
+	do {
+		msleep(1);
+		temp = inb(SMBHSTSTS) & 0x0f;
+	} while ((temp & 0x08) && (timeout++ < MAX_TIMEOUT));
+
+	/* If the SMBus is still busy, we give up */
+	if (timeout >= MAX_TIMEOUT) {
+		dev_err(&sch_adapter.dev, "SMBus Timeout!\n");
+		result = -ETIMEDOUT;
+	}
+	if (temp & 0x04) {
+		result = -EIO;
+		dev_dbg(&sch_adapter.dev, "Bus collision! SMBus may be "
+			"locked until next hard reset. (sorry!)\n");
+		/* Clock stops and slave is stuck in mid-transmission */
+	} else if (temp & 0x02) {
+		result = -EIO;
+		dev_err(&sch_adapter.dev, "Error: no response!\n");
+	} else if (temp & 0x01) {
+		dev_dbg(&sch_adapter.dev, "Post complete!\n");
+		outb(temp, SMBHSTSTS);
+		temp = inb(SMBHSTSTS) & 0x07;
+		if (temp & 0x06) {
+			/* Completion clear failed */
+			dev_dbg(&sch_adapter.dev, "Failed reset at end of "
+				"transaction (%02x), Bus error!\n", temp);
+		}
+	} else {
+		result = -ENXIO;
+		dev_dbg(&sch_adapter.dev, "No such address.\n");
+	}
+	dev_dbg(&sch_adapter.dev, "Transaction (post): CNT=%02x, CMD=%02x, "
+		"ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT),
+		inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0),
+		inb(SMBHSTDAT1));
+	return result;
+}
+
+/*
+ * This is the main access entry for i2c-sch access
+ * adap is i2c_adapter pointer, addr is the i2c device bus address, read_write
+ * (0 for read and 1 for write), size is i2c transaction type and data is the
+ * union of transaction for data to be transfered or data read from bus.
+ * return 0 for success and others for failure.
+ */
+static s32 sch_access(struct i2c_adapter *adap, u16 addr,
+		 unsigned short flags, char read_write,
+		 u8 command, int size, union i2c_smbus_data *data)
+{
+	int i, len, temp, rc;
+
+	/* Make sure the SMBus host is not busy */
+	temp = inb(SMBHSTSTS) & 0x0f;
+	if (temp & 0x08) {
+		dev_dbg(&sch_adapter.dev, "SMBus busy (%02x)\n", temp);
+		return -EAGAIN;
+	}
+	dev_dbg(&sch_adapter.dev, "access size: %d %s\n", size,
+		(read_write)?"READ":"WRITE");
+	switch (size) {
+	case I2C_SMBUS_QUICK:
+		outb((addr << 1) | read_write, SMBHSTADD);
+		size = SCH_QUICK;
+		break;
+	case I2C_SMBUS_BYTE:
+		outb((addr << 1) | read_write, SMBHSTADD);
+		if (read_write == I2C_SMBUS_WRITE)
+			outb(command, SMBHSTCMD);
+		size = SCH_BYTE;
+		break;
+	case I2C_SMBUS_BYTE_DATA:
+		outb((addr << 1) | read_write, SMBHSTADD);
+		outb(command, SMBHSTCMD);
+		if (read_write == I2C_SMBUS_WRITE)
+			outb(data->byte, SMBHSTDAT0);
+		size = SCH_BYTE_DATA;
+		break;
+	case I2C_SMBUS_WORD_DATA:
+		outb((addr << 1) | read_write, SMBHSTADD);
+		outb(command, SMBHSTCMD);
+		if (read_write == I2C_SMBUS_WRITE) {
+			outb(data->word & 0xff, SMBHSTDAT0);
+			outb((data->word & 0xff00) >> 8, SMBHSTDAT1);
+		}
+		size = SCH_WORD_DATA;
+		break;
+	case I2C_SMBUS_BLOCK_DATA:
+		outb((addr << 1) | read_write, SMBHSTADD);
+		outb(command, SMBHSTCMD);
+		if (read_write == I2C_SMBUS_WRITE) {
+			len = data->block[0];
+			if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
+				return -EINVAL;
+			outb(len, SMBHSTDAT0);
+			for (i = 1; i <= len; i++)
+				outb(data->block[i], SMBBLKDAT+i-1);
+		}
+		size = SCH_BLOCK_DATA;
+		break;
+	default:
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
+	}
+	dev_dbg(&sch_adapter.dev, "write size %d to 0x%04x\n", size, SMBHSTCNT);
+	outb((inb(SMBHSTCNT) & 0xb0) | (size & 0x7), SMBHSTCNT);
+
+	rc = sch_transaction();
+	if (rc)	/* Error in transaction */
+		return rc;
+
+	if ((read_write == I2C_SMBUS_WRITE) || (size == SCH_QUICK))
+		return 0;
+
+	switch (size) {
+	case SCH_BYTE:
+	case SCH_BYTE_DATA:
+		data->byte = inb(SMBHSTDAT0);
+		break;
+	case SCH_WORD_DATA:
+		data->word = inb(SMBHSTDAT0) + (inb(SMBHSTDAT1) << 8);
+		break;
+	case SCH_BLOCK_DATA:
+		data->block[0] = inb(SMBHSTDAT0);
+		if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+			return -EPROTO;
+		for (i = 1; i <= data->block[0]; i++)
+			data->block[i] = inb(SMBBLKDAT+i-1);
+		break;
+	}
+	return 0;
+}
+
+static u32 sch_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
+	    I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
+	    I2C_FUNC_SMBUS_BLOCK_DATA;
+}
+
+static const struct i2c_algorithm smbus_algorithm = {
+	.smbus_xfer	= sch_access,
+	.functionality	= sch_func,
+};
+
+static struct i2c_adapter sch_adapter = {
+	.owner		= THIS_MODULE,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
+	.algo		= &smbus_algorithm,
+};
+
+static struct pci_device_id sch_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, sch_ids);
+
+static int __devinit sch_probe(struct pci_dev *dev,
+				const struct pci_device_id *id)
+{
+	int retval;
+	unsigned int smba;
+
+	pci_read_config_dword(dev, SMBBA_SCH, &smba);
+	if (!(smba & (1 << 31))) {
+		dev_err(&dev->dev, "SMBus I/O space disabled!\n");
+		return -ENODEV;
+	}
+
+	sch_smba = (unsigned short)smba;
+	if (sch_smba == 0) {
+		dev_err(&dev->dev, "SMBus base address uninitialized!\n");
+		return -ENODEV;
+	}
+	if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name))
+		return -EBUSY;
+	if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) {
+		dev_err(&dev->dev, "SMBus region 0x%x already in use!\n",
+			sch_smba);
+		return -EBUSY;
+	}
+	dev_dbg(&dev->dev, "SMBA = 0x%X\n", sch_smba);
+
+	/* set up the sysfs linkage to our parent device */
+	sch_adapter.dev.parent = &dev->dev;
+
+	snprintf(sch_adapter.name, sizeof(sch_adapter.name),
+		"SMBus SCH adapter at %04x", sch_smba);
+
+	retval = i2c_add_adapter(&sch_adapter);
+	if (retval) {
+		dev_err(&dev->dev, "Couldn't register adapter!\n");
+		release_region(sch_smba, SMBIOSIZE);
+		sch_smba = 0;
+	}
+
+	return retval;
+}
+
+static void __devexit sch_remove(struct pci_dev *dev)
+{
+	if (sch_smba) {
+		i2c_del_adapter(&sch_adapter);
+		release_region(sch_smba, SMBIOSIZE);
+		sch_smba = 0;
+	}
+}
+
+static struct pci_driver sch_driver = {
+	.name		= "isch_smbus",
+	.id_table	= sch_ids,
+	.probe		= sch_probe,
+	.remove		= __devexit_p(sch_remove),
+};
+
+static int __init i2c_sch_init(void)
+{
+	return pci_register_driver(&sch_driver);
+}
+
+static void __exit i2c_sch_exit(void)
+{
+	pci_unregister_driver(&sch_driver);
+}
+
+MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
+MODULE_DESCRIPTION("Intel SCH SMBus driver");
+MODULE_LICENSE("GPL");
+
+module_init(i2c_sch_init);
+module_exit(i2c_sch_exit);
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index a076129de7e8..aaaea85ce1ca 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -17,7 +17,8 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_i2c.h>
 
 #include <asm/io.h>
 #include <linux/fsl_devices.h>
@@ -25,13 +26,13 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
-#define MPC_I2C_ADDR  0x00
+#define DRV_NAME "mpc-i2c"
+
 #define MPC_I2C_FDR 	0x04
 #define MPC_I2C_CR	0x08
 #define MPC_I2C_SR	0x0c
 #define MPC_I2C_DR	0x10
 #define MPC_I2C_DFSRR 0x14
-#define MPC_I2C_REGION 0x20
 
 #define CCR_MEN  0x80
 #define CCR_MIEN 0x40
@@ -311,106 +312,123 @@ static struct i2c_adapter mpc_ops = {
 	.name = "MPC adapter",
 	.id = I2C_HW_MPC107,
 	.algo = &mpc_algo,
-	.class = I2C_CLASS_HWMON,
+	.class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.timeout = 1,
 };
 
-static int fsl_i2c_probe(struct platform_device *pdev)
+static int __devinit fsl_i2c_probe(struct of_device *op,
+				   const struct of_device_id *match)
 {
 	int result = 0;
 	struct mpc_i2c *i2c;
-	struct fsl_i2c_platform_data *pdata;
-	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;
 
 	i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
 	if (!i2c)
 		return -ENOMEM;
 
-	i2c->irq = platform_get_irq(pdev, 0);
-	if (i2c->irq < 0)
-		i2c->irq = NO_IRQ; /* Use polling */
+	if (of_get_property(op->node, "dfsrr", NULL))
+		i2c->flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 
-	i2c->flags = pdata->device_flags;
-	init_waitqueue_head(&i2c->queue);
+	if (of_device_is_compatible(op->node, "fsl,mpc5200-i2c") ||
+			of_device_is_compatible(op->node, "mpc5200-i2c"))
+		i2c->flags |= FSL_I2C_DEV_CLOCK_5200;
 
-	i2c->base = ioremap((phys_addr_t)r->start, MPC_I2C_REGION);
+	init_waitqueue_head(&i2c->queue);
 
+	i2c->base = of_iomap(op->node, 0);
 	if (!i2c->base) {
 		printk(KERN_ERR "i2c-mpc - failed to map controller\n");
 		result = -ENOMEM;
 		goto fail_map;
 	}
 
-	if (i2c->irq != NO_IRQ)
-		if ((result = request_irq(i2c->irq, mpc_i2c_isr,
-					  IRQF_SHARED, "i2c-mpc", i2c)) < 0) {
+	i2c->irq = irq_of_parse_and_map(op->node, 0);
+	if (i2c->irq != NO_IRQ) { /* i2c->irq = NO_IRQ implies polling */
+		result = request_irq(i2c->irq, mpc_i2c_isr,
+				     IRQF_SHARED, "i2c-mpc", i2c);
+		if (result < 0) {
 			printk(KERN_ERR
 			       "i2c-mpc - failed to attach interrupt\n");
 			goto fail_irq;
 		}
+	}
 
 	mpc_i2c_setclock(i2c);
-	platform_set_drvdata(pdev, i2c);
+	dev_set_drvdata(&op->dev, i2c);
 
 	i2c->adap = mpc_ops;
-	i2c->adap.nr = pdev->id;
 	i2c_set_adapdata(&i2c->adap, i2c);
-	i2c->adap.dev.parent = &pdev->dev;
-	if ((result = i2c_add_numbered_adapter(&i2c->adap)) < 0) {
+	i2c->adap.dev.parent = &op->dev;
+
+	result = i2c_add_adapter(&i2c->adap);
+	if (result < 0) {
 		printk(KERN_ERR "i2c-mpc - failed to add adapter\n");
 		goto fail_add;
 	}
+	of_register_i2c_devices(&i2c->adap, op->node);
 
 	return result;
 
-      fail_add:
+ fail_add:
+	dev_set_drvdata(&op->dev, NULL);
 	if (i2c->irq != NO_IRQ)
 		free_irq(i2c->irq, i2c);
-      fail_irq:
+ fail_irq:
+	irq_dispose_mapping(i2c->irq);
 	iounmap(i2c->base);
-      fail_map:
+ fail_map:
 	kfree(i2c);
 	return result;
 };
 
-static int fsl_i2c_remove(struct platform_device *pdev)
+static int __devexit fsl_i2c_remove(struct of_device *op)
 {
-	struct mpc_i2c *i2c = platform_get_drvdata(pdev);
+	struct mpc_i2c *i2c = dev_get_drvdata(&op->dev);
 
 	i2c_del_adapter(&i2c->adap);
-	platform_set_drvdata(pdev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	if (i2c->irq != NO_IRQ)
 		free_irq(i2c->irq, i2c);
 
+	irq_dispose_mapping(i2c->irq);
 	iounmap(i2c->base);
 	kfree(i2c);
 	return 0;
 };
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:fsl-i2c");
+static const struct of_device_id mpc_i2c_of_match[] = {
+	{.compatible = "fsl-i2c",},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mpc_i2c_of_match);
+
 
 /* Structure for a device driver */
-static struct platform_driver fsl_i2c_driver = {
-	.probe = fsl_i2c_probe,
-	.remove = fsl_i2c_remove,
-	.driver	= {
-		.owner = THIS_MODULE,
-		.name = "fsl-i2c",
+static struct of_platform_driver mpc_i2c_driver = {
+	.match_table	= mpc_i2c_of_match,
+	.probe		= fsl_i2c_probe,
+	.remove		= __devexit_p(fsl_i2c_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
 	},
 };
 
 static int __init fsl_i2c_init(void)
 {
-	return platform_driver_register(&fsl_i2c_driver);
+	int rv;
+
+	rv = of_register_platform_driver(&mpc_i2c_driver);
+	if (rv)
+		printk(KERN_ERR DRV_NAME
+		       " of_register_platform_driver failed (%i)\n", rv);
+	return rv;
 }
 
 static void __exit fsl_i2c_exit(void)
 {
-	platform_driver_unregister(&fsl_i2c_driver);
+	of_unregister_platform_driver(&mpc_i2c_driver);
 }
 
 module_init(fsl_i2c_init);
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 036e6a883e67..9e8118d2fe64 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -530,7 +530,7 @@ mv64xxx_i2c_probe(struct platform_device *pd)
 	drv_data->adapter.id = I2C_HW_MV64XXX;
 	drv_data->adapter.algo = &mv64xxx_i2c_algo;
 	drv_data->adapter.owner = THIS_MODULE;
-	drv_data->adapter.class = I2C_CLASS_HWMON;
+	drv_data->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	drv_data->adapter.timeout = pdata->timeout;
 	drv_data->adapter.nr = pd->id;
 	platform_set_drvdata(pd, drv_data);
diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
new file mode 100644
index 000000000000..6a8995dfd0bb
--- /dev/null
+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
@@ -0,0 +1,257 @@
+/*
+ * i2c-nforce2-s4985.c - i2c-nforce2 extras for the Tyan S4985 motherboard
+ *
+ * Copyright (C) 2008 Jean Delvare <khali@linux-fr.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * We select the channels by sending commands to the Philips
+ * PCA9556 chip at I2C address 0x18. The main adapter is used for
+ * the non-multiplexed part of the bus, and 4 virtual adapters
+ * are defined for the multiplexed addresses: 0x50-0x53 (memory
+ * module EEPROM) located on channels 1-4. We define one virtual
+ * adapter per CPU, which corresponds to one multiplexed channel:
+ *   CPU0: virtual adapter 1, channel 1
+ *   CPU1: virtual adapter 2, channel 2
+ *   CPU2: virtual adapter 3, channel 3
+ *   CPU3: virtual adapter 4, channel 4
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+extern struct i2c_adapter *nforce2_smbus;
+
+static struct i2c_adapter *s4985_adapter;
+static struct i2c_algorithm *s4985_algo;
+
+/* Wrapper access functions for multiplexed SMBus */
+static DEFINE_MUTEX(nforce2_lock);
+
+static s32 nforce2_access_virt0(struct i2c_adapter *adap, u16 addr,
+				unsigned short flags, char read_write,
+				u8 command, int size,
+				union i2c_smbus_data *data)
+{
+	int error;
+
+	/* We exclude the multiplexed addresses */
+	if ((addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30
+	 || addr == 0x18)
+		return -ENXIO;
+
+	mutex_lock(&nforce2_lock);
+	error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write,
+						command, size, data);
+	mutex_unlock(&nforce2_lock);
+
+	return error;
+}
+
+/* We remember the last used channels combination so as to only switch
+   channels when it is really needed. This greatly reduces the SMBus
+   overhead, but also assumes that nobody will be writing to the PCA9556
+   in our back. */
+static u8 last_channels;
+
+static inline s32 nforce2_access_channel(struct i2c_adapter *adap, u16 addr,
+					 unsigned short flags, char read_write,
+					 u8 command, int size,
+					 union i2c_smbus_data *data,
+					 u8 channels)
+{
+	int error;
+
+	/* We exclude the non-multiplexed addresses */
+	if ((addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30)
+		return -ENXIO;
+
+	mutex_lock(&nforce2_lock);
+	if (last_channels != channels) {
+		union i2c_smbus_data mplxdata;
+		mplxdata.byte = channels;
+
+		error = nforce2_smbus->algo->smbus_xfer(adap, 0x18, 0,
+							I2C_SMBUS_WRITE, 0x01,
+							I2C_SMBUS_BYTE_DATA,
+							&mplxdata);
+		if (error)
+			goto UNLOCK;
+		last_channels = channels;
+	}
+	error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write,
+						command, size, data);
+
+UNLOCK:
+	mutex_unlock(&nforce2_lock);
+	return error;
+}
+
+static s32 nforce2_access_virt1(struct i2c_adapter *adap, u16 addr,
+				unsigned short flags, char read_write,
+				u8 command, int size,
+				union i2c_smbus_data *data)
+{
+	/* CPU0: channel 1 enabled */
+	return nforce2_access_channel(adap, addr, flags, read_write, command,
+				      size, data, 0x02);
+}
+
+static s32 nforce2_access_virt2(struct i2c_adapter *adap, u16 addr,
+				unsigned short flags, char read_write,
+				u8 command, int size,
+				union i2c_smbus_data *data)
+{
+	/* CPU1: channel 2 enabled */
+	return nforce2_access_channel(adap, addr, flags, read_write, command,
+				      size, data, 0x04);
+}
+
+static s32 nforce2_access_virt3(struct i2c_adapter *adap, u16 addr,
+				unsigned short flags, char read_write,
+				u8 command, int size,
+				union i2c_smbus_data *data)
+{
+	/* CPU2: channel 3 enabled */
+	return nforce2_access_channel(adap, addr, flags, read_write, command,
+				      size, data, 0x08);
+}
+
+static s32 nforce2_access_virt4(struct i2c_adapter *adap, u16 addr,
+				unsigned short flags, char read_write,
+				u8 command, int size,
+				union i2c_smbus_data *data)
+{
+	/* CPU3: channel 4 enabled */
+	return nforce2_access_channel(adap, addr, flags, read_write, command,
+				      size, data, 0x10);
+}
+
+static int __init nforce2_s4985_init(void)
+{
+	int i, error;
+	union i2c_smbus_data ioconfig;
+
+	/* Unregister physical bus */
+	if (!nforce2_smbus)
+		return -ENODEV;
+	error = i2c_del_adapter(nforce2_smbus);
+	if (error) {
+		dev_err(&nforce2_smbus->dev, "Physical bus removal failed\n");
+		goto ERROR0;
+	}
+
+	printk(KERN_INFO "Enabling SMBus multiplexing for Tyan S4985\n");
+	/* Define the 5 virtual adapters and algorithms structures */
+	s4985_adapter = kzalloc(5 * sizeof(struct i2c_adapter), GFP_KERNEL);
+	if (!s4985_adapter) {
+		error = -ENOMEM;
+		goto ERROR1;
+	}
+	s4985_algo = kzalloc(5 * sizeof(struct i2c_algorithm), GFP_KERNEL);
+	if (!s4985_algo) {
+		error = -ENOMEM;
+		goto ERROR2;
+	}
+
+	/* Fill in the new structures */
+	s4985_algo[0] = *(nforce2_smbus->algo);
+	s4985_algo[0].smbus_xfer = nforce2_access_virt0;
+	s4985_adapter[0] = *nforce2_smbus;
+	s4985_adapter[0].algo = s4985_algo;
+	s4985_adapter[0].dev.parent = nforce2_smbus->dev.parent;
+	for (i = 1; i < 5; i++) {
+		s4985_algo[i] = *(nforce2_smbus->algo);
+		s4985_adapter[i] = *nforce2_smbus;
+		snprintf(s4985_adapter[i].name, sizeof(s4985_adapter[i].name),
+			 "SMBus nForce2 adapter (CPU%d)", i - 1);
+		s4985_adapter[i].algo = s4985_algo + i;
+		s4985_adapter[i].dev.parent = nforce2_smbus->dev.parent;
+	}
+	s4985_algo[1].smbus_xfer = nforce2_access_virt1;
+	s4985_algo[2].smbus_xfer = nforce2_access_virt2;
+	s4985_algo[3].smbus_xfer = nforce2_access_virt3;
+	s4985_algo[4].smbus_xfer = nforce2_access_virt4;
+
+	/* Configure the PCA9556 multiplexer */
+	ioconfig.byte = 0x00; /* All I/O to output mode */
+	error = nforce2_smbus->algo->smbus_xfer(nforce2_smbus, 0x18, 0,
+						I2C_SMBUS_WRITE, 0x03,
+						I2C_SMBUS_BYTE_DATA, &ioconfig);
+	if (error) {
+		dev_err(&nforce2_smbus->dev, "PCA9556 configuration failed\n");
+		error = -EIO;
+		goto ERROR3;
+	}
+
+	/* Register virtual adapters */
+	for (i = 0; i < 5; i++) {
+		error = i2c_add_adapter(s4985_adapter + i);
+		if (error) {
+			dev_err(&nforce2_smbus->dev,
+				"Virtual adapter %d registration "
+				"failed, module not inserted\n", i);
+			for (i--; i >= 0; i--)
+				i2c_del_adapter(s4985_adapter + i);
+			goto ERROR3;
+		}
+	}
+
+	return 0;
+
+ERROR3:
+	kfree(s4985_algo);
+	s4985_algo = NULL;
+ERROR2:
+	kfree(s4985_adapter);
+	s4985_adapter = NULL;
+ERROR1:
+	/* Restore physical bus */
+	i2c_add_adapter(nforce2_smbus);
+ERROR0:
+	return error;
+}
+
+static void __exit nforce2_s4985_exit(void)
+{
+	if (s4985_adapter) {
+		int i;
+
+		for (i = 0; i < 5; i++)
+			i2c_del_adapter(s4985_adapter+i);
+		kfree(s4985_adapter);
+		s4985_adapter = NULL;
+	}
+	kfree(s4985_algo);
+	s4985_algo = NULL;
+
+	/* Restore physical bus */
+	if (i2c_add_adapter(nforce2_smbus))
+		dev_err(&nforce2_smbus->dev, "Physical bus restoration "
+			"failed\n");
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("S4985 SMBus multiplexing");
+MODULE_LICENSE("GPL");
+
+module_init(nforce2_s4985_init);
+module_exit(nforce2_s4985_exit);
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 43c9f8df9509..3b19bc41a60b 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -51,6 +51,7 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/dmi.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
@@ -124,6 +125,20 @@ static struct dmi_system_id __devinitdata nforce2_dmi_blacklist2[] = {
 
 static struct pci_driver nforce2_driver;
 
+/* For multiplexing support, we need a global reference to the 1st
+   SMBus channel */
+#if defined CONFIG_I2C_NFORCE2_S4985 || defined CONFIG_I2C_NFORCE2_S4985_MODULE
+struct i2c_adapter *nforce2_smbus;
+EXPORT_SYMBOL_GPL(nforce2_smbus);
+
+static void nforce2_set_reference(struct i2c_adapter *adap)
+{
+	nforce2_smbus = adap;
+}
+#else
+static inline void nforce2_set_reference(struct i2c_adapter *adap) { }
+#endif
+
 static void nforce2_abort(struct i2c_adapter *adap)
 {
 	struct nforce2_smbus *smbus = adap->algo_data;
@@ -158,16 +173,16 @@ static int nforce2_check_status(struct i2c_adapter *adap)
 		dev_dbg(&adap->dev, "SMBus Timeout!\n");
 		if (smbus->can_abort)
 			nforce2_abort(adap);
-		return -1;
+		return -ETIMEDOUT;
 	}
 	if (!(temp & NVIDIA_SMB_STS_DONE) || (temp & NVIDIA_SMB_STS_STATUS)) {
 		dev_dbg(&adap->dev, "Transaction failed (0x%02x)!\n", temp);
-		return -1;
+		return -EIO;
 	}
 	return 0;
 }
 
-/* Return -1 on error */
+/* Return negative errno on error */
 static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 		unsigned short flags, char read_write,
 		u8 command, int size, union i2c_smbus_data * data)
@@ -175,7 +190,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 	struct nforce2_smbus *smbus = adap->algo_data;
 	unsigned char protocol, pec;
 	u8 len;
-	int i;
+	int i, status;
 
 	protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ :
 		NVIDIA_SMB_PRTCL_WRITE;
@@ -219,7 +234,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 						"Transaction failed "
 						"(requested block size: %d)\n",
 						len);
-					return -1;
+					return -EINVAL;
 				}
 				outb_p(len, NVIDIA_SMB_BCNT);
 				for (i = 0; i < I2C_SMBUS_BLOCK_MAX; i++)
@@ -231,14 +246,15 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 
 		default:
 			dev_err(&adap->dev, "Unsupported transaction %d\n", size);
-			return -1;
+			return -EOPNOTSUPP;
 	}
 
 	outb_p((addr & 0x7f) << 1, NVIDIA_SMB_ADDR);
 	outb_p(protocol, NVIDIA_SMB_PRTCL);
 
-	if (nforce2_check_status(adap))
-		return -1;
+	status = nforce2_check_status(adap);
+	if (status)
+		return status;
 
 	if (read_write == I2C_SMBUS_WRITE)
 		return 0;
@@ -260,7 +276,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 				dev_err(&adap->dev, "Transaction failed "
 					"(received block size: 0x%02x)\n",
 					len);
-				return -1;
+				return -EPROTO;
 			}
 			for (i = 0; i < len; i++)
 				data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i);
@@ -321,21 +337,26 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
 		    != PCIBIOS_SUCCESSFUL) {
 			dev_err(&dev->dev, "Error reading PCI config for %s\n",
 				name);
-			return -1;
+			return -EIO;
 		}
 
 		smbus->base = iobase & PCI_BASE_ADDRESS_IO_MASK;
 		smbus->size = 64;
 	}
 
+	error = acpi_check_region(smbus->base, smbus->size,
+				  nforce2_driver.name);
+	if (error)
+		return -1;
+
 	if (!request_region(smbus->base, smbus->size, nforce2_driver.name)) {
 		dev_err(&smbus->adapter.dev, "Error requesting region %02x .. %02X for %s\n",
 			smbus->base, smbus->base+smbus->size-1, name);
-		return -1;
+		return -EBUSY;
 	}
 	smbus->adapter.owner = THIS_MODULE;
 	smbus->adapter.id = I2C_HW_SMBUS_NFORCE2;
-	smbus->adapter.class = I2C_CLASS_HWMON;
+	smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	smbus->adapter.algo = &smbus_algorithm;
 	smbus->adapter.algo_data = smbus;
 	smbus->adapter.dev.parent = &dev->dev;
@@ -346,7 +367,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
 	if (error) {
 		dev_err(&smbus->adapter.dev, "Failed to register adapter.\n");
 		release_region(smbus->base, smbus->size);
-		return -1;
+		return error;
 	}
 	dev_info(&smbus->adapter.dev, "nForce2 SMBus adapter at %#x\n", smbus->base);
 	return 0;
@@ -398,6 +419,7 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_
 		return -ENODEV;
 	}
 
+	nforce2_set_reference(&smbuses[0].adapter);
 	return 0;
 }
 
@@ -406,6 +428,7 @@ static void __devexit nforce2_remove(struct pci_dev *dev)
 {
 	struct nforce2_smbus *smbuses = (void*) pci_get_drvdata(dev);
 
+	nforce2_set_reference(NULL);
 	if (smbuses[0].base) {
 		i2c_del_adapter(&smbuses[0].adapter);
 		release_region(smbuses[0].base, smbuses[0].size);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index f145692cbb76..e5193bf75483 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -29,6 +29,7 @@ struct ocores_i2c {
 	int pos;
 	int nmsgs;
 	int state; /* see STATE_ */
+	int clock_khz;
 };
 
 /* registers */
@@ -173,8 +174,7 @@ static int ocores_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 		return -ETIMEDOUT;
 }
 
-static void ocores_init(struct ocores_i2c *i2c,
-			struct ocores_i2c_platform_data *pdata)
+static void ocores_init(struct ocores_i2c *i2c)
 {
 	int prescale;
 	u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
@@ -182,7 +182,7 @@ static void ocores_init(struct ocores_i2c *i2c,
 	/* make sure the device is disabled */
 	oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN));
 
-	prescale = (pdata->clock_khz / (5*100)) - 1;
+	prescale = (i2c->clock_khz / (5*100)) - 1;
 	oc_setreg(i2c, OCI2C_PRELOW, prescale & 0xff);
 	oc_setreg(i2c, OCI2C_PREHIGH, prescale >> 8);
 
@@ -205,7 +205,7 @@ static const struct i2c_algorithm ocores_algorithm = {
 static struct i2c_adapter ocores_adapter = {
 	.owner		= THIS_MODULE,
 	.name		= "i2c-ocores",
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &ocores_algorithm,
 };
 
@@ -248,7 +248,8 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
 	}
 
 	i2c->regstep = pdata->regstep;
-	ocores_init(i2c, pdata);
+	i2c->clock_khz = pdata->clock_khz;
+	ocores_init(i2c);
 
 	init_waitqueue_head(&i2c->wait);
 	ret = request_irq(res2->start, ocores_isr, 0, pdev->name, i2c);
@@ -312,13 +313,40 @@ static int __devexit ocores_i2c_remove(struct platform_device* pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int ocores_i2c_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct ocores_i2c *i2c = platform_get_drvdata(pdev);
+	u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
+
+	/* make sure the device is disabled */
+	oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN));
+
+	return 0;
+}
+
+static int ocores_i2c_resume(struct platform_device *pdev)
+{
+	struct ocores_i2c *i2c = platform_get_drvdata(pdev);
+
+	ocores_init(i2c);
+
+	return 0;
+}
+#else
+#define ocores_i2c_suspend	NULL
+#define ocores_i2c_resume	NULL
+#endif
+
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:ocores-i2c");
 
 static struct platform_driver ocores_i2c_driver = {
-	.probe  = ocores_i2c_probe,
-	.remove = __devexit_p(ocores_i2c_remove),
-	.driver = {
+	.probe   = ocores_i2c_probe,
+	.remove  = __devexit_p(ocores_i2c_remove),
+	.suspend = ocores_i2c_suspend,
+	.resume  = ocores_i2c_resume,
+	.driver  = {
 		.owner = THIS_MODULE,
 		.name = "ocores-i2c",
 	},
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index 1603c81e39d4..adf0fbb902f0 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -365,7 +365,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev,
 	smbus->adapter.owner = THIS_MODULE;
 	snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
 		 "PA Semi SMBus adapter at 0x%lx", smbus->base);
-	smbus->adapter.class = I2C_CLASS_HWMON;
+	smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	smbus->adapter.algo = &smbus_algorithm;
 	smbus->adapter.algo_data = smbus;
 	smbus->adapter.nr = PCI_FUNC(dev->devfn);
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 9d75f51e8f0e..6bb15ad0a6b6 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -163,7 +163,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
 
 	i2c->reg_base = ioremap(res->start, res_len(res));
 	if (!i2c->reg_base) {
-		ret = -EIO;
+		ret = -ENOMEM;
 		goto e_remap;
 	}
 	i2c->io_base = res->start;
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index ac9165968587..eaa9b387543e 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -1,6 +1,4 @@
 /*
-    piix4.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com>
 
@@ -39,16 +37,10 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/dmi.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
-struct sd {
-	const unsigned short mfr;
-	const unsigned short dev;
-	const unsigned char fn;
-	const char *name;
-};
-
 /* PIIX4 SMBus address offsets */
 #define SMBHSTSTS	(0 + piix4_smba)
 #define SMBHSLVSTS	(1 + piix4_smba)
@@ -101,8 +93,6 @@ MODULE_PARM_DESC(force_addr,
 		 "Forcibly enable the PIIX4 at the given address. "
 		 "EXTREMELY DANGEROUS!");
 
-static int piix4_transaction(void);
-
 static unsigned short piix4_smba;
 static int srvrworks_csb5_delay;
 static struct pci_driver piix4_driver;
@@ -141,8 +131,6 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
 {
 	unsigned char temp;
 
-	dev_info(&PIIX4_dev->dev, "Found %s device\n", pci_name(PIIX4_dev));
-
 	if ((PIIX4_dev->vendor == PCI_VENDOR_ID_SERVERWORKS) &&
 	    (PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5))
 		srvrworks_csb5_delay = 1;
@@ -172,17 +160,20 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
 		pci_read_config_word(PIIX4_dev, SMBBA, &piix4_smba);
 		piix4_smba &= 0xfff0;
 		if(piix4_smba == 0) {
-			dev_err(&PIIX4_dev->dev, "SMB base address "
+			dev_err(&PIIX4_dev->dev, "SMBus base address "
 				"uninitialized - upgrade BIOS or use "
 				"force_addr=0xaddr\n");
 			return -ENODEV;
 		}
 	}
 
+	if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
+		return -EBUSY;
+
 	if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) {
-		dev_err(&PIIX4_dev->dev, "SMB region 0x%x already in use!\n",
+		dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",
 			piix4_smba);
-		return -ENODEV;
+		return -EBUSY;
 	}
 
 	pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp);
@@ -228,13 +219,13 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
 			"(or code out of date)!\n");
 
 	pci_read_config_byte(PIIX4_dev, SMBREV, &temp);
-	dev_dbg(&PIIX4_dev->dev, "SMBREV = 0x%X\n", temp);
-	dev_dbg(&PIIX4_dev->dev, "SMBA = 0x%X\n", piix4_smba);
+	dev_info(&PIIX4_dev->dev,
+		 "SMBus Host Controller at 0x%x, revision %d\n",
+		 piix4_smba, temp);
 
 	return 0;
 }
 
-/* Another internally used function */
 static int piix4_transaction(void)
 {
 	int temp;
@@ -253,7 +244,7 @@ static int piix4_transaction(void)
 		outb_p(temp, SMBHSTSTS);
 		if ((temp = inb_p(SMBHSTSTS)) != 0x00) {
 			dev_err(&piix4_adapter.dev, "Failed! (%02x)\n", temp);
-			return -1;
+			return -EBUSY;
 		} else {
 			dev_dbg(&piix4_adapter.dev, "Successful!\n");
 		}
@@ -275,23 +266,23 @@ static int piix4_transaction(void)
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
 		dev_err(&piix4_adapter.dev, "SMBus Timeout!\n");
-		result = -1;
+		result = -ETIMEDOUT;
 	}
 
 	if (temp & 0x10) {
-		result = -1;
+		result = -EIO;
 		dev_err(&piix4_adapter.dev, "Error: Failed bus transaction\n");
 	}
 
 	if (temp & 0x08) {
-		result = -1;
+		result = -EIO;
 		dev_dbg(&piix4_adapter.dev, "Bus collision! SMBus may be "
 			"locked until next hard reset. (sorry!)\n");
 		/* Clock stops and slave is stuck in mid-transmission */
 	}
 
 	if (temp & 0x04) {
-		result = -1;
+		result = -ENXIO;
 		dev_dbg(&piix4_adapter.dev, "Error: no response!\n");
 	}
 
@@ -309,31 +300,29 @@ static int piix4_transaction(void)
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		 unsigned short flags, char read_write,
 		 u8 command, int size, union i2c_smbus_data * data)
 {
 	int i, len;
+	int status;
 
 	switch (size) {
-	case I2C_SMBUS_PROC_CALL:
-		dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-		return -1;
 	case I2C_SMBUS_QUICK:
-		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+		outb_p((addr << 1) | read_write,
 		       SMBHSTADD);
 		size = PIIX4_QUICK;
 		break;
 	case I2C_SMBUS_BYTE:
-		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+		outb_p((addr << 1) | read_write,
 		       SMBHSTADD);
 		if (read_write == I2C_SMBUS_WRITE)
 			outb_p(command, SMBHSTCMD);
 		size = PIIX4_BYTE;
 		break;
 	case I2C_SMBUS_BYTE_DATA:
-		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+		outb_p((addr << 1) | read_write,
 		       SMBHSTADD);
 		outb_p(command, SMBHSTCMD);
 		if (read_write == I2C_SMBUS_WRITE)
@@ -341,7 +330,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		size = PIIX4_BYTE_DATA;
 		break;
 	case I2C_SMBUS_WORD_DATA:
-		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+		outb_p((addr << 1) | read_write,
 		       SMBHSTADD);
 		outb_p(command, SMBHSTCMD);
 		if (read_write == I2C_SMBUS_WRITE) {
@@ -351,15 +340,13 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		size = PIIX4_WORD_DATA;
 		break;
 	case I2C_SMBUS_BLOCK_DATA:
-		outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+		outb_p((addr << 1) | read_write,
 		       SMBHSTADD);
 		outb_p(command, SMBHSTCMD);
 		if (read_write == I2C_SMBUS_WRITE) {
 			len = data->block[0];
-			if (len < 0)
-				len = 0;
-			if (len > 32)
-				len = 32;
+			if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
+				return -EINVAL;
 			outb_p(len, SMBHSTDAT0);
 			i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 			for (i = 1; i <= len; i++)
@@ -367,12 +354,16 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		}
 		size = PIIX4_BLOCK_DATA;
 		break;
+	default:
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
 	outb_p((size & 0x1C) + (ENABLE_INT9 & 1), SMBHSTCNT);
 
-	if (piix4_transaction())	/* Error in transaction */
-		return -1;
+	status = piix4_transaction();
+	if (status)
+		return status;
 
 	if ((read_write == I2C_SMBUS_WRITE) || (size == PIIX4_QUICK))
 		return 0;
@@ -388,6 +379,8 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		break;
 	case PIIX4_BLOCK_DATA:
 		data->block[0] = inb_p(SMBHSTDAT0);
+		if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+			return -EPROTO;
 		i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 		for (i = 1; i <= data->block[0]; i++)
 			data->block[i] = inb_p(SMBBLKDAT);
@@ -411,7 +404,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter piix4_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_PIIX4,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c
index 63b3e2c11cff..dcf2045b5222 100644
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -622,7 +622,7 @@ static struct i2c_algorithm pmcmsptwi_algo = {
 
 static struct i2c_adapter pmcmsptwi_adapter = {
 	.owner		= THIS_MODULE,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &pmcmsptwi_algo,
 	.name		= DRV_NAME,
 };
diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c
deleted file mode 100644
index 07c1f1e27df1..000000000000
--- a/drivers/i2c/busses/i2c-prosavage.c
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- *    kernel/busses/i2c-prosavage.c
- *
- *    i2c bus driver for S3/VIA 8365/8375 graphics processor.
- *    Copyright (c) 2003 Henk Vergonet <henk@god.dyndns.org>
- *    Based on code written by:
- *	Frodo Looijaard <frodol@dds.nl>,
- *	Philip Edelbrock <phil@netroedge.com>,
- *	Ralph Metzler <rjkm@thp.uni-koeln.de>, and
- *	Mark D. Studebaker <mdsxyz123@yahoo.com>
- *	Simon Vogl
- *	and others
- *
- *    Please read the lm_sensors documentation for details on use.
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-/*  18-05-2003 HVE - created
- *  14-06-2003 HVE - adapted for lm_sensors2
- *  17-06-2003 HVE - linux 2.5.xx compatible
- *  18-06-2003 HVE - codingstyle
- *  21-06-2003 HVE - compatibility lm_sensors2 and linux 2.5.xx
- *		     codingstyle, mmio enabled
- *
- *  This driver interfaces to the I2C bus of the VIA north bridge embedded
- *  ProSavage4/8 devices. Usefull for gaining access to the TV Encoder chips.
- *
- *  Graphics cores:
- *   S3/VIA KM266/VT8375 aka ProSavage8
- *   S3/VIA KM133/VT8365 aka Savage4
- *
- *  Two serial busses are implemented:
- *   SERIAL1 - I2C serial communications interface
- *   SERIAL2 - DDC2 monitor communications interface
- *
- *  Tested on a FX41 mainboard, see http://www.shuttle.com
- * 
- *
- *  TODO:
- *  - integration with prosavage framebuffer device
- *    (Additional documentation needed :(
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/*
- * driver configuration
- */
-#define MAX_BUSSES	2
-
-struct s_i2c_bus {
-	void __iomem *mmvga;
-	int	i2c_reg;
-	int	adap_ok;
-	struct i2c_adapter		adap;
-	struct i2c_algo_bit_data	algo;
-};
-
-struct s_i2c_chip {
-	void __iomem *mmio;
-	struct s_i2c_bus	i2c_bus[MAX_BUSSES];
-};
-
-
-/*
- * i2c configuration
- */
-#define CYCLE_DELAY	10
-#define TIMEOUT		(HZ / 2)
-
-
-/* 
- * S3/VIA 8365/8375 registers
- */
-#define VGA_CR_IX	0x3d4
-#define VGA_CR_DATA	0x3d5
-
-#define CR_SERIAL1	0xa0	/* I2C serial communications interface */
-#define MM_SERIAL1	0xff20
-#define CR_SERIAL2	0xb1	/* DDC2 monitor communications interface */
-
-/* based on vt8365 documentation */
-#define I2C_ENAB	0x10
-#define I2C_SCL_OUT	0x01
-#define I2C_SDA_OUT	0x02
-#define I2C_SCL_IN	0x04
-#define I2C_SDA_IN	0x08
-
-#define SET_CR_IX(p, val)	writeb((val), (p)->mmvga + VGA_CR_IX)
-#define SET_CR_DATA(p, val)	writeb((val), (p)->mmvga + VGA_CR_DATA)
-#define GET_CR_DATA(p)		readb((p)->mmvga + VGA_CR_DATA)
-
-
-/*
- * Serial bus line handling
- *
- * serial communications register as parameter in private data
- *
- * TODO: locks with other code sections accessing video registers?
- */
-static void bit_s3via_setscl(void *bus, int val)
-{
-	struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-	unsigned int r;
-
-	SET_CR_IX(p, p->i2c_reg);
-	r = GET_CR_DATA(p);
-	r |= I2C_ENAB;
-	if (val) {
-		r |= I2C_SCL_OUT;
-	} else {
-		r &= ~I2C_SCL_OUT;
-	}
-	SET_CR_DATA(p, r);
-}
-
-static void bit_s3via_setsda(void *bus, int val)
-{
-	struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-	unsigned int r;
-	
-	SET_CR_IX(p, p->i2c_reg);
-	r = GET_CR_DATA(p);
-	r |= I2C_ENAB;
-	if (val) {
-		r |= I2C_SDA_OUT;
-	} else {
-		r &= ~I2C_SDA_OUT;
-	}
-	SET_CR_DATA(p, r);
-}
-
-static int bit_s3via_getscl(void *bus)
-{
-	struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-
-	SET_CR_IX(p, p->i2c_reg);
-	return (0 != (GET_CR_DATA(p) & I2C_SCL_IN));
-}
-
-static int bit_s3via_getsda(void *bus)
-{
-	struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-
-	SET_CR_IX(p, p->i2c_reg);
-	return (0 != (GET_CR_DATA(p) & I2C_SDA_IN));
-}
-
-
-/*
- * adapter initialisation
- */
-static int i2c_register_bus(struct pci_dev *dev, struct s_i2c_bus *p, void __iomem *mmvga, u32 i2c_reg)
-{
-	int ret;
-	p->adap.owner	  = THIS_MODULE;
-	p->adap.id	  = I2C_HW_B_S3VIA;
-	p->adap.algo_data = &p->algo;
-	p->adap.dev.parent = &dev->dev;
-	p->algo.setsda	  = bit_s3via_setsda;
-	p->algo.setscl	  = bit_s3via_setscl;
-	p->algo.getsda	  = bit_s3via_getsda;
-	p->algo.getscl	  = bit_s3via_getscl;
-	p->algo.udelay	  = CYCLE_DELAY;
-	p->algo.timeout	  = TIMEOUT;
-	p->algo.data	  = p;
-	p->mmvga	  = mmvga;
-	p->i2c_reg	  = i2c_reg;
-    
-	ret = i2c_bit_add_bus(&p->adap);
-	if (ret) {
-		return ret;
-	}
-
-	p->adap_ok = 1;
-	return 0;
-}
-
-
-/*
- * Cleanup stuff
- */
-static void prosavage_remove(struct pci_dev *dev)
-{
-	struct s_i2c_chip *chip;
-	int i, ret;
-
-	chip = (struct s_i2c_chip *)pci_get_drvdata(dev);
-
-	if (!chip) {
-		return;
-	}
-	for (i = MAX_BUSSES - 1; i >= 0; i--) {
-		if (chip->i2c_bus[i].adap_ok == 0)
-			continue;
-
-		ret = i2c_del_adapter(&chip->i2c_bus[i].adap);
-	        if (ret) {
-			dev_err(&dev->dev, "%s not removed\n",
-				chip->i2c_bus[i].adap.name);
-		}
-	}
-	if (chip->mmio) {
-		iounmap(chip->mmio);
-	}
-	kfree(chip);
-}
-
-
-/*
- * Detect chip and initialize it
- */
-static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	int ret;
-	unsigned long base, len;
-	struct s_i2c_chip *chip;
-	struct s_i2c_bus  *bus;
-
-	pci_set_drvdata(dev, kzalloc(sizeof(struct s_i2c_chip), GFP_KERNEL));
-	chip = (struct s_i2c_chip *)pci_get_drvdata(dev);
-	if (chip == NULL) {
-		return -ENOMEM;
-	}
-
-	base = dev->resource[0].start & PCI_BASE_ADDRESS_MEM_MASK;
-	len  = dev->resource[0].end - base + 1;
-	chip->mmio = ioremap_nocache(base, len);
-
-	if (chip->mmio == NULL) {
-		dev_err(&dev->dev, "ioremap failed\n");
-		prosavage_remove(dev);
-		return -ENODEV;
-	}
-
-
-	/*
-	 * Chip initialisation
-	 */
-	/* Unlock Extended IO Space ??? */
-
-
-	/*
-	 * i2c bus registration
-	 */
-	bus = &chip->i2c_bus[0];
-	snprintf(bus->adap.name, sizeof(bus->adap.name),
-		"ProSavage I2C bus at %02x:%02x.%x",
-		dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-	ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL1);
-	if (ret) {
-		goto err_adap;
-	}
-	/*
-	 * ddc bus registration
-	 */
-	bus = &chip->i2c_bus[1];
-	snprintf(bus->adap.name, sizeof(bus->adap.name),
-		"ProSavage DDC bus at %02x:%02x.%x",
-		dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-	ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL2);
-	if (ret) {
-		goto err_adap;
-	}
-	return 0;
-err_adap:
-	dev_err(&dev->dev, "%s failed\n", bus->adap.name);
-	prosavage_remove(dev);
-	return ret;
-}
-
-
-/*
- * Data for PCI driver interface
- */
-static struct pci_device_id prosavage_pci_tbl[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SAVAGE4) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_PROSAVAGE8) },
-	{ 0, },
-};
-
-MODULE_DEVICE_TABLE (pci, prosavage_pci_tbl);
-
-static struct pci_driver prosavage_driver = {
-	.name		=	"prosavage_smbus",
-	.id_table	=	prosavage_pci_tbl,
-	.probe		=	prosavage_probe,
-	.remove		=	prosavage_remove,
-};
-
-static int __init i2c_prosavage_init(void)
-{
-	return pci_register_driver(&prosavage_driver);
-}
-
-static void __exit i2c_prosavage_exit(void)
-{
-	pci_unregister_driver(&prosavage_driver);
-}
-
-MODULE_DEVICE_TABLE(pci, prosavage_pci_tbl);
-MODULE_AUTHOR("Henk Vergonet");
-MODULE_DESCRIPTION("ProSavage VIA 8365/8375 smbus driver");
-MODULE_LICENSE("GPL");
-
-module_init (i2c_prosavage_init);
-module_exit (i2c_prosavage_exit);
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index eb69fbadc9cb..78c0fc42bc73 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1134,5 +1134,5 @@ static void __exit i2c_adap_pxa_exit(void)
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:pxa2xx-i2c");
 
-module_init(i2c_adap_pxa_init);
+subsys_initcall(i2c_adap_pxa_init);
 module_exit(i2c_adap_pxa_exit);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 1305ef190fc1..fd7b2308a0b3 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -591,7 +591,7 @@ static struct s3c24xx_i2c s3c24xx_i2c = {
 		.owner			= THIS_MODULE,
 		.algo			= &s3c24xx_i2c_algorithm,
 		.retries		= 2,
-		.class			= I2C_CLASS_HWMON,
+		.class			= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	},
 };
 
diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c
deleted file mode 100644
index 8adf4abaa035..000000000000
--- a/drivers/i2c/busses/i2c-savage4.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
-    i2c-savage4.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-    Copyright (C) 1998-2003  The LM Sensors Team
-    Alexander Wold <awold@bigfoot.com>
-    Mark D. Studebaker <mdsxyz123@yahoo.com>
-    
-    Based on i2c-voodoo3.c.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-/* This interfaces to the I2C bus of the Savage4 to gain access to
-   the BT869 and possibly other I2C devices. The DDC bus is not
-   yet supported because its register is not memory-mapped.
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/* device IDs */
-#define PCI_CHIP_SAVAGE4	0x8A22
-#define PCI_CHIP_SAVAGE2000	0x9102
-
-#define REG			0xff20	/* Serial Port 1 Register */
-
-/* bit locations in the register */
-#define I2C_ENAB		0x00000020
-#define I2C_SCL_OUT		0x00000001
-#define I2C_SDA_OUT		0x00000002
-#define I2C_SCL_IN		0x00000008
-#define I2C_SDA_IN		0x00000010
-
-/* delays */
-#define CYCLE_DELAY		10
-#define TIMEOUT			(HZ / 2)
-
-
-static void __iomem *ioaddr;
-
-/* The sav GPIO registers don't have individual masks for each bit
-   so we always have to read before writing. */
-
-static void bit_savi2c_setscl(void *data, int val)
-{
-	unsigned int r;
-	r = readl(ioaddr + REG);
-	if(val)
-		r |= I2C_SCL_OUT;
-	else
-		r &= ~I2C_SCL_OUT;
-	writel(r, ioaddr + REG);
-	readl(ioaddr + REG);	/* flush posted write */
-}
-
-static void bit_savi2c_setsda(void *data, int val)
-{
-	unsigned int r;
-	r = readl(ioaddr + REG);
-	if(val)
-		r |= I2C_SDA_OUT;
-	else
-		r &= ~I2C_SDA_OUT;
-	writel(r, ioaddr + REG);
-	readl(ioaddr + REG);	/* flush posted write */
-}
-
-/* The GPIO pins are open drain, so the pins always remain outputs.
-   We rely on the i2c-algo-bit routines to set the pins high before
-   reading the input from other chips. */
-
-static int bit_savi2c_getscl(void *data)
-{
-	return (0 != (readl(ioaddr + REG) & I2C_SCL_IN));
-}
-
-static int bit_savi2c_getsda(void *data)
-{
-	return (0 != (readl(ioaddr + REG) & I2C_SDA_IN));
-}
-
-/* Configures the chip */
-
-static int config_s4(struct pci_dev *dev)
-{
-	unsigned long cadr;
-
-	/* map memory */
-	cadr = dev->resource[0].start;
-	cadr &= PCI_BASE_ADDRESS_MEM_MASK;
-	ioaddr = ioremap_nocache(cadr, 0x0080000);
-	if (ioaddr) {
-		/* writel(0x8160, ioaddr + REG2); */
-		writel(0x00000020, ioaddr + REG);
-		dev_info(&dev->dev, "Using Savage4 at %p\n", ioaddr);
-		return 0;
-	}
-	return -ENODEV;
-}
-
-static struct i2c_algo_bit_data sav_i2c_bit_data = {
-	.setsda		= bit_savi2c_setsda,
-	.setscl		= bit_savi2c_setscl,
-	.getsda		= bit_savi2c_getsda,
-	.getscl		= bit_savi2c_getscl,
-	.udelay		= CYCLE_DELAY,
-	.timeout	= TIMEOUT
-};
-
-static struct i2c_adapter savage4_i2c_adapter = {
-	.owner		= THIS_MODULE,
-	.id		= I2C_HW_B_SAVAGE,
-	.name		= "I2C Savage4 adapter",
-	.algo_data	= &sav_i2c_bit_data,
-};
-
-static struct pci_device_id savage4_ids[] __devinitdata = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000) },
-	{ 0, }
-};
-
-MODULE_DEVICE_TABLE (pci, savage4_ids);
-
-static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	int retval;
-
-	retval = config_s4(dev);
-	if (retval)
-		return retval;
-
-	/* set up the sysfs linkage to our parent device */
-	savage4_i2c_adapter.dev.parent = &dev->dev;
-
-	return i2c_bit_add_bus(&savage4_i2c_adapter);
-}
-
-static void __devexit savage4_remove(struct pci_dev *dev)
-{
-	i2c_del_adapter(&savage4_i2c_adapter);
-	iounmap(ioaddr);
-}
-
-static struct pci_driver savage4_driver = {
-	.name		= "savage4_smbus",
-	.id_table	= savage4_ids,
-	.probe		= savage4_probe,
-	.remove		= __devexit_p(savage4_remove),
-};
-
-static int __init i2c_savage4_init(void)
-{
-	return pci_register_driver(&savage4_driver);
-}
-
-static void __exit i2c_savage4_exit(void)
-{
-	pci_unregister_driver(&savage4_driver);
-}
-
-MODULE_AUTHOR("Alexander Wold <awold@bigfoot.com> "
-		"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
-MODULE_DESCRIPTION("Savage4 I2C/SMBus driver");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_savage4_init);
-module_exit(i2c_savage4_exit);
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c
index 114634da6c6e..4ddefbf238e9 100644
--- a/drivers/i2c/busses/i2c-sibyte.c
+++ b/drivers/i2c/busses/i2c-sibyte.c
@@ -143,7 +143,7 @@ static int __init i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed)
 	csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ));
 	csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL));
 
-	return i2c_add_adapter(i2c_adap);
+	return i2c_add_numbered_adapter(i2c_adap);
 }
 
 
@@ -156,17 +156,19 @@ static struct i2c_adapter sibyte_board_adapter[2] = {
 	{
 		.owner		= THIS_MODULE,
 		.id		= I2C_HW_SIBYTE,
-		.class		= I2C_CLASS_HWMON,
+		.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 		.algo		= NULL,
 		.algo_data	= &sibyte_board_data[0],
+		.nr		= 0,
 		.name		= "SiByte SMBus 0",
 	},
 	{
 		.owner		= THIS_MODULE,
 		.id		= I2C_HW_SIBYTE,
-		.class		= I2C_CLASS_HWMON,
+		.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 		.algo		= NULL,
 		.algo_data	= &sibyte_board_data[1],
+		.nr		= 1,
 		.name		= "SiByte SMBus 1",
 	},
 };
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index 9ca8f9155f95..dfc2d5eb6a68 100644
--- a/drivers/i2c/busses/i2c-sis5595.c
+++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -1,6 +1,4 @@
 /*
-    sis5595.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com>
 
@@ -62,6 +60,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static int blacklist[] = {
@@ -174,6 +173,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
 
 	/* NB: We grab just the two SMBus registers here, but this may still
 	 * interfere with ACPI :-(  */
+	retval = acpi_check_region(sis5595_base + SMB_INDEX, 2,
+				   sis5595_driver.name);
+	if (retval)
+		return retval;
+
 	if (!request_region(sis5595_base + SMB_INDEX, 2,
 			    sis5595_driver.name)) {
 		dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n",
@@ -236,7 +240,7 @@ static int sis5595_transaction(struct i2c_adapter *adap)
 		sis5595_write(SMB_STS_HI, temp >> 8);
 		if ((temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8)) != 0x00) {
 			dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
-			return -1;
+			return -EBUSY;
 		} else {
 			dev_dbg(&adap->dev, "Successful!\n");
 		}
@@ -254,19 +258,19 @@ static int sis5595_transaction(struct i2c_adapter *adap)
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
 		dev_dbg(&adap->dev, "SMBus Timeout!\n");
-		result = -1;
+		result = -ETIMEDOUT;
 	}
 
 	if (temp & 0x10) {
 		dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
-		result = -1;
+		result = -ENXIO;
 	}
 
 	if (temp & 0x20) {
 		dev_err(&adap->dev, "Bus collision! SMBus may be locked until "
 			"next hard reset (or not...)\n");
 		/* Clock stops and slave is stuck in mid-transmission */
-		result = -1;
+		result = -EIO;
 	}
 
 	temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8);
@@ -282,11 +286,13 @@ static int sis5595_transaction(struct i2c_adapter *adap)
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis5595_access(struct i2c_adapter *adap, u16 addr,
 			  unsigned short flags, char read_write,
 			  u8 command, int size, union i2c_smbus_data *data)
 {
+	int status;
+
 	switch (size) {
 	case I2C_SMBUS_QUICK:
 		sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
@@ -318,13 +324,14 @@ static s32 sis5595_access(struct i2c_adapter *adap, u16 addr,
 		break;
 	default:
 		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
-		return -1;
+		return -EOPNOTSUPP;
 	}
 
 	sis5595_write(SMB_CTL_LO, ((size & 0x0E)));
 
-	if (sis5595_transaction(adap))
-		return -1;
+	status = sis5595_transaction(adap);
+	if (status)
+		return status;
 
 	if ((size != SIS5595_PROC_CALL) &&
 	    ((read_write == I2C_SMBUS_WRITE) || (size == SIS5595_QUICK)))
@@ -359,7 +366,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis5595_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_SIS5595,
-	.class          = I2C_CLASS_HWMON,
+	.class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 3765dd7f450f..e7c4b790da54 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -1,7 +1,4 @@
 /*
-    i2c-sis630.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 2002,2003 Alexander Malysh <amalysh@web.de>
 
     This program is free software; you can redistribute it and/or modify
@@ -55,6 +52,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* SIS630 SMBus registers */
@@ -134,7 +132,7 @@ static int sis630_transaction_start(struct i2c_adapter *adap, int size, u8 *oldc
 
 		if ((temp = sis630_read(SMB_CNT) & 0x03) != 0x00) {
 			dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
-			return -1;
+			return -EBUSY;
                 } else {
 			dev_dbg(&adap->dev, "Successful!\n");
 		}
@@ -177,17 +175,17 @@ static int sis630_transaction_wait(struct i2c_adapter *adap, int size)
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
 		dev_dbg(&adap->dev, "SMBus Timeout!\n");
-		result = -1;
+		result = -ETIMEDOUT;
 	}
 
 	if (temp & 0x02) {
 		dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
-		result = -1;
+		result = -ENXIO;
 	}
 
 	if (temp & 0x04) {
 		dev_err(&adap->dev, "Bus collision!\n");
-		result = -1;
+		result = -EIO;
 		/*
 		  TBD: Datasheet say:
 		  the software should clear this bit and restart SMBUS operation.
@@ -250,8 +248,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
 			if (i==8 || (len<8 && i==len)) {
 				dev_dbg(&adap->dev, "start trans len=%d i=%d\n",len ,i);
 				/* first transaction */
-				if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock))
-					return -1;
+				rc = sis630_transaction_start(adap,
+						SIS630_BLOCK_DATA, &oldclock);
+				if (rc)
+					return rc;
 			}
 			else if ((i-1)%8 == 7 || i==len) {
 				dev_dbg(&adap->dev, "trans_wait len=%d i=%d\n",len,i);
@@ -264,9 +264,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
 					*/
 					sis630_write(SMB_STS,0x10);
 				}
-				if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
+				rc = sis630_transaction_wait(adap,
+						SIS630_BLOCK_DATA);
+				if (rc) {
 					dev_dbg(&adap->dev, "trans_wait failed\n");
-					rc = -1;
 					break;
 				}
 			}
@@ -275,13 +276,14 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
 	else {
 		/* read request */
 		data->block[0] = len = 0;
-		if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) {
-			return -1;
-		}
+		rc = sis630_transaction_start(adap,
+				SIS630_BLOCK_DATA, &oldclock);
+		if (rc)
+			return rc;
 		do {
-			if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
+			rc = sis630_transaction_wait(adap, SIS630_BLOCK_DATA);
+			if (rc) {
 				dev_dbg(&adap->dev, "trans_wait failed\n");
-				rc = -1;
 				break;
 			}
 			/* if this first transaction then read byte count */
@@ -311,11 +313,13 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
 	return rc;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
 			 unsigned short flags, char read_write,
 			 u8 command, int size, union i2c_smbus_data *data)
 {
+	int status;
+
 	switch (size) {
 		case I2C_SMBUS_QUICK:
 			sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
@@ -350,13 +354,14 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
 			size = SIS630_BLOCK_DATA;
 			return sis630_block_data(adap, data, read_write);
 		default:
-			printk("Unsupported I2C size\n");
-			return -1;
-			break;
+			dev_warn(&adap->dev, "Unsupported transaction %d\n",
+				 size);
+			return -EOPNOTSUPP;
 	}
 
-	if (sis630_transaction(adap, size))
-		return -1;
+	status = sis630_transaction(adap, size);
+	if (status)
+		return status;
 
 	if ((size != SIS630_PCALL) &&
 		((read_write == I2C_SMBUS_WRITE) || (size == SIS630_QUICK))) {
@@ -372,9 +377,6 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
 		case SIS630_WORD_DATA:
 			data->word = sis630_read(SMB_BYTE) + (sis630_read(SMB_BYTE + 1) << 8);
 			break;
-		default:
-			return -1;
-			break;
 	}
 
 	return 0;
@@ -433,6 +435,11 @@ static int sis630_setup(struct pci_dev *sis630_dev)
 
 	dev_dbg(&sis630_dev->dev, "ACPI base at 0x%04x\n", acpi_base);
 
+	retval = acpi_check_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION,
+				   sis630_driver.name);
+	if (retval)
+		goto exit;
+
 	/* Everything is happy, let's grab the memory and set things up. */
 	if (!request_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION,
 			    sis630_driver.name)) {
@@ -458,7 +465,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis630_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_SIS630,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c
index dc235bb8e24d..f1bba6396641 100644
--- a/drivers/i2c/busses/i2c-sis96x.c
+++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -1,7 +1,4 @@
 /*
-    sis96x.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 2003 Mark M. Hoffman <mhoffman@lightlink.com>
 
     This program is free software; you can redistribute it and/or modify
@@ -40,6 +37,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* base address register in PCI config space */
@@ -111,7 +109,7 @@ static int sis96x_transaction(int size)
 		/* check it again */
 		if (((temp = sis96x_read(SMB_CNT)) & 0x03) != 0x00) {
 			dev_dbg(&sis96x_adapter.dev, "Failed (0x%02x)\n", temp);
-			return -1;
+			return -EBUSY;
 		} else {
 			dev_dbg(&sis96x_adapter.dev, "Successful\n");
 		}
@@ -136,19 +134,19 @@ static int sis96x_transaction(int size)
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
 		dev_dbg(&sis96x_adapter.dev, "SMBus Timeout! (0x%02x)\n", temp);
-		result = -1;
+		result = -ETIMEDOUT;
 	}
 
 	/* device error - probably missing ACK */
 	if (temp & 0x02) {
 		dev_dbg(&sis96x_adapter.dev, "Failed bus transaction!\n");
-		result = -1;
+		result = -ENXIO;
 	}
 
 	/* bus collision */
 	if (temp & 0x04) {
 		dev_dbg(&sis96x_adapter.dev, "Bus collision!\n");
-		result = -1;
+		result = -EIO;
 	}
 
 	/* Finish up by resetting the bus */
@@ -161,11 +159,12 @@ static int sis96x_transaction(int size)
 	return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis96x_access(struct i2c_adapter * adap, u16 addr,
 			 unsigned short flags, char read_write,
 			 u8 command, int size, union i2c_smbus_data * data)
 {
+	int status;
 
 	switch (size) {
 	case I2C_SMBUS_QUICK:
@@ -200,20 +199,14 @@ static s32 sis96x_access(struct i2c_adapter * adap, u16 addr,
 			SIS96x_PROC_CALL : SIS96x_WORD_DATA);
 		break;
 
-	case I2C_SMBUS_BLOCK_DATA:
-		/* TO DO: */
-		dev_info(&adap->dev, "SMBus block not implemented!\n");
-		return -1;
-		break;
-
 	default:
-		dev_info(&adap->dev, "Unsupported I2C size\n");
-		return -1;
-		break;
+		dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
-	if (sis96x_transaction(size))
-		return -1;
+	status = sis96x_transaction(size);
+	if (status)
+		return status;
 
 	if ((size != SIS96x_PROC_CALL) &&
 		((read_write == I2C_SMBUS_WRITE) || (size == SIS96x_QUICK)))
@@ -249,7 +242,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis96x_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_SIS96X,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
@@ -286,6 +279,10 @@ static int __devinit sis96x_probe(struct pci_dev *dev,
 	dev_info(&dev->dev, "SiS96x SMBus base address: 0x%04x\n",
 			sis96x_smbus_base);
 
+	retval = acpi_check_resource_conflict(&dev->resource[SIS96x_BAR]);
+	if (retval)
+		return retval;
+
 	/* Everything is happy, let's grab the memory and set things up. */
 	if (!request_region(sis96x_smbus_base, SMB_IOSIZE,
 			    sis96x_driver.name)) {
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
index d08eeec53913..1b7b2af94036 100644
--- a/drivers/i2c/busses/i2c-stub.c
+++ b/drivers/i2c/busses/i2c-stub.c
@@ -43,7 +43,7 @@ struct stub_chip {
 
 static struct stub_chip *stub_chips;
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
 	char read_write, u8 command, int size, union i2c_smbus_data * data)
 {
@@ -120,7 +120,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
 
 	default:
 		dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n");
-		ret = -1;
+		ret = -EOPNOTSUPP;
 		break;
 	} /* switch (size) */
 
@@ -140,7 +140,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter stub_adapter = {
 	.owner		= THIS_MODULE,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 	.name		= "SMBus stub driver",
 };
diff --git a/drivers/i2c/busses/i2c-taos-evm.c b/drivers/i2c/busses/i2c-taos-evm.c
index de9db49e54d9..224aa12ee7c8 100644
--- a/drivers/i2c/busses/i2c-taos-evm.c
+++ b/drivers/i2c/busses/i2c-taos-evm.c
@@ -96,9 +96,8 @@ static int taos_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 			sprintf(p, "$%02X", command);
 		break;
 	default:
-		dev_dbg(&adapter->dev, "Unsupported transaction size %d\n",
-			size);
-		return -EINVAL;
+		dev_warn(&adapter->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
 	/* Send the transaction to the TAOS EVM */
diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c
index 61716f6b14dc..29cef0433f34 100644
--- a/drivers/i2c/busses/i2c-via.c
+++ b/drivers/i2c/busses/i2c-via.c
@@ -1,7 +1,4 @@
 /*
-    i2c-via.c - Part of lm_sensors,  Linux kernel modules
-                for hardware monitoring
-
     i2c Support for Via Technologies 82C586B South Bridge
 
     Copyright (c) 1998, 1999 Kyösti Mälkki <kmalkki@cc.hut.fi>
@@ -87,7 +84,7 @@ static struct i2c_algo_bit_data bit_data = {
 static struct i2c_adapter vt586b_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_B_VIA,
-	.class          = I2C_CLASS_HWMON,
+	.class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.name		= "VIA i2c",
 	.algo_data	= &bit_data,
 };
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 77b13d027f86..862eb352a2d9 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -1,6 +1,4 @@
 /*
-    i2c-viapro.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>, Kyösti Mälkki <kmalkki@cc.hut.fi>,
     Mark D. Studebaker <mdsxyz123@yahoo.com>
@@ -50,6 +48,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static struct pci_dev *vt596_pdev;
@@ -152,7 +151,7 @@ static int vt596_transaction(u8 size)
 		if ((temp = inb_p(SMBHSTSTS)) & 0x1F) {
 			dev_err(&vt596_adapter.dev, "SMBus reset failed! "
 				"(0x%02x)\n", temp);
-			return -1;
+			return -EBUSY;
 		}
 	}
 
@@ -167,24 +166,24 @@ static int vt596_transaction(u8 size)
 
 	/* If the SMBus is still busy, we give up */
 	if (timeout >= MAX_TIMEOUT) {
-		result = -1;
+		result = -ETIMEDOUT;
 		dev_err(&vt596_adapter.dev, "SMBus timeout!\n");
 	}
 
 	if (temp & 0x10) {
-		result = -1;
+		result = -EIO;
 		dev_err(&vt596_adapter.dev, "Transaction failed (0x%02x)\n",
 			size);
 	}
 
 	if (temp & 0x08) {
-		result = -1;
+		result = -EIO;
 		dev_err(&vt596_adapter.dev, "SMBus collision!\n");
 	}
 
 	if (temp & 0x04) {
 		int read = inb_p(SMBHSTADD) & 0x01;
-		result = -1;
+		result = -ENXIO;
 		/* The quick and receive byte commands are used to probe
 		   for chips, so errors are expected, and we don't want
 		   to frighten the user. */
@@ -202,12 +201,13 @@ static int vt596_transaction(u8 size)
 	return result;
 }
 
-/* Return -1 on error, 0 on success */
+/* Return negative errno on error, 0 on success */
 static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 		unsigned short flags, char read_write, u8 command,
 		int size, union i2c_smbus_data *data)
 {
 	int i;
+	int status;
 
 	switch (size) {
 	case I2C_SMBUS_QUICK:
@@ -258,8 +258,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 
 	outb_p(((addr & 0x7f) << 1) | read_write, SMBHSTADD);
 
-	if (vt596_transaction(size)) /* Error in transaction */
-		return -1;
+	status = vt596_transaction(size);
+	if (status)
+		return status;
 
 	if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK))
 		return 0;
@@ -285,9 +286,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 	return 0;
 
 exit_unsupported:
-	dev_warn(&vt596_adapter.dev, "Unsupported command invoked! (0x%02x)\n",
+	dev_warn(&vt596_adapter.dev, "Unsupported transaction %d\n",
 		 size);
-	return -1;
+	return -EOPNOTSUPP;
 }
 
 static u32 vt596_func(struct i2c_adapter *adapter)
@@ -309,7 +310,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter vt596_adapter = {
 	.owner		= THIS_MODULE,
 	.id		= I2C_HW_SMBUS_VIA2,
-	.class		= I2C_CLASS_HWMON,
+	.class		= I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.algo		= &smbus_algorithm,
 };
 
@@ -354,6 +355,10 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
 	}
 
 found:
+	error = acpi_check_region(vt596_smba, 8, vt596_driver.name);
+	if (error)
+		return error;
+
 	if (!request_region(vt596_smba, 8, vt596_driver.name)) {
 		dev_err(&pdev->dev, "SMBus region 0x%x already in use!\n",
 			vt596_smba);
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
index 88a3447e11e1..1d4ae26ba73d 100644
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -1,6 +1,4 @@
 /*
-    voodoo3.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>,
     Ralph Metzler <rjkm@thp.uni-koeln.de>, and
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index 61abe0f33255..ed794b145a11 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -442,7 +442,7 @@ static __init struct scx200_acb_iface *scx200_create_iface(const char *text,
 	adapter->owner = THIS_MODULE;
 	adapter->id = I2C_HW_SMBUS_SCX200;
 	adapter->algo = &scx200_acb_algorithm;
-	adapter->class = I2C_CLASS_HWMON;
+	adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	adapter->dev.parent = dev;
 
 	mutex_init(&iface->mutex);
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 2da2edfa68ec..50e0a4653741 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -14,6 +14,32 @@ config DS1682
 	  This driver can also be built as a module.  If so, the module
 	  will be called ds1682.
 
+config AT24
+	tristate "EEPROMs from most vendors"
+	depends on SYSFS && EXPERIMENTAL
+	help
+	  Enable this driver to get read/write support to most I2C EEPROMs,
+	  after you configure the driver to know about each EEPROM on
+	  your target board.  Use these generic chip names, instead of
+	  vendor-specific ones like at24c64 or 24lc02:
+
+	     24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
+	     24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
+
+	  Unless you like data loss puzzles, always be sure that any chip
+	  you configure as a 24c32 (32 kbit) or larger is NOT really a
+	  24c16 (16 kbit) or smaller, and vice versa. Marking the chip
+	  as read-only won't help recover from this. Also, if your chip
+	  has any software write-protect mechanism you may want to review the
+	  code to make sure this driver won't turn it on by accident.
+
+	  If you use this with an SMBus adapter instead of an I2C adapter,
+	  full functionality is not available.  Only smaller devices are
+	  supported (24c16 and below, max 4 kByte).
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called at24.
+
 config SENSORS_EEPROM
 	tristate "EEPROM reader"
 	depends on EXPERIMENTAL
@@ -26,8 +52,8 @@ config SENSORS_EEPROM
 	  will be called eeprom.
 
 config SENSORS_PCF8574
-	tristate "Philips PCF8574 and PCF8574A"
-	depends on EXPERIMENTAL
+	tristate "Philips PCF8574 and PCF8574A (DEPRECATED)"
+	depends on EXPERIMENTAL && GPIO_PCF857X = "n"
 	default n
 	help
 	  If you say yes here you get support for Philips PCF8574 and 
@@ -36,12 +62,16 @@ config SENSORS_PCF8574
 	  This driver can also be built as a module.  If so, the module
 	  will be called pcf8574.
 
+	  This driver is deprecated and will be dropped soon. Use
+	  drivers/gpio/pcf857x.c instead.
+
 	  These devices are hard to detect and rarely found on mainstream
 	  hardware.  If unsure, say N.
 
 config PCF8575
-	tristate "Philips PCF8575"
+	tristate "Philips PCF8575 (DEPRECATED)"
 	default n
+	depends on GPIO_PCF857X = "n"
 	help
 	  If you say yes here you get support for Philips PCF8575 chip.
 	  This chip is a 16-bit I/O expander for the I2C bus.  Several other
@@ -50,12 +80,15 @@ config PCF8575
 	  This driver can also be built as a module.  If so, the module
 	  will be called pcf8575.
 
+	  This driver is deprecated and will be dropped soon. Use
+	  drivers/gpio/pcf857x.c instead.
+
 	  This device is hard to detect and is rarely found on mainstream
 	  hardware.  If unsure, say N.
 
 config SENSORS_PCA9539
 	tristate "Philips PCA9539 16-bit I/O port (DEPRECATED)"
-	depends on EXPERIMENTAL && GPIO_PCA9539 = "n"
+	depends on EXPERIMENTAL && GPIO_PCA953X = "n"
 	help
 	  If you say yes here you get support for the Philips PCA9539
 	  16-bit I/O port.
@@ -64,7 +97,7 @@ config SENSORS_PCA9539
 	  will be called pca9539.
 
 	  This driver is deprecated and will be dropped soon. Use
-	  drivers/gpio/pca9539.c instead.
+	  drivers/gpio/pca953x.c instead.
 
 config SENSORS_PCF8591
 	tristate "Philips PCF8591"
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index e47aca0ca5ae..39e3e69ed125 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -10,6 +10,7 @@
 #
 
 obj-$(CONFIG_DS1682)		+= ds1682.o
+obj-$(CONFIG_AT24)		+= at24.o
 obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
 obj-$(CONFIG_SENSORS_MAX6875)	+= max6875.o
 obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
diff --git a/drivers/i2c/chips/at24.c b/drivers/i2c/chips/at24.c
new file mode 100644
index 000000000000..ad1fb331f652
--- /dev/null
+++ b/drivers/i2c/chips/at24.c
@@ -0,0 +1,585 @@
+/*
+ * at24.c - handle most I2C EEPROMs
+ *
+ * Copyright (C) 2005-2007 David Brownell
+ * Copyright (C) 2008 Wolfram Sang, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/mod_devicetable.h>
+#include <linux/log2.h>
+#include <linux/bitops.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+
+/*
+ * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable.
+ * Differences between different vendor product lines (like Atmel AT24C or
+ * MicroChip 24LC, etc) won't much matter for typical read/write access.
+ * There are also I2C RAM chips, likewise interchangeable. One example
+ * would be the PCF8570, which acts like a 24c02 EEPROM (256 bytes).
+ *
+ * However, misconfiguration can lose data. "Set 16-bit memory address"
+ * to a part with 8-bit addressing will overwrite data. Writing with too
+ * big a page size also loses data. And it's not safe to assume that the
+ * conventional addresses 0x50..0x57 only hold eeproms; a PCF8563 RTC
+ * uses 0x51, for just one example.
+ *
+ * Accordingly, explicit board-specific configuration data should be used
+ * in almost all cases. (One partial exception is an SMBus used to access
+ * "SPD" data for DRAM sticks. Those only use 24c02 EEPROMs.)
+ *
+ * So this driver uses "new style" I2C driver binding, expecting to be
+ * told what devices exist. That may be in arch/X/mach-Y/board-Z.c or
+ * similar kernel-resident tables; or, configuration data coming from
+ * a bootloader.
+ *
+ * Other than binding model, current differences from "eeprom" driver are
+ * that this one handles write access and isn't restricted to 24c02 devices.
+ * It also handles larger devices (32 kbit and up) with two-byte addresses,
+ * which won't work on pure SMBus systems.
+ */
+
+struct at24_data {
+	struct at24_platform_data chip;
+	bool use_smbus;
+
+	/*
+	 * Lock protects against activities from other Linux tasks,
+	 * but not from changes by other I2C masters.
+	 */
+	struct mutex lock;
+	struct bin_attribute bin;
+
+	u8 *writebuf;
+	unsigned write_max;
+	unsigned num_addresses;
+
+	/*
+	 * Some chips tie up multiple I2C addresses; dummy devices reserve
+	 * them for us, and we'll use them with SMBus calls.
+	 */
+	struct i2c_client *client[];
+};
+
+/*
+ * This parameter is to help this driver avoid blocking other drivers out
+ * of I2C for potentially troublesome amounts of time. With a 100 kHz I2C
+ * clock, one 256 byte read takes about 1/43 second which is excessive;
+ * but the 1/170 second it takes at 400 kHz may be quite reasonable; and
+ * at 1 MHz (Fm+) a 1/430 second delay could easily be invisible.
+ *
+ * This value is forced to be a power of two so that writes align on pages.
+ */
+static unsigned io_limit = 128;
+module_param(io_limit, uint, 0);
+MODULE_PARM_DESC(io_limit, "Maximum bytes per I/O (default 128)");
+
+/*
+ * Specs often allow 5 msec for a page write, sometimes 20 msec;
+ * it's important to recover from write timeouts.
+ */
+static unsigned write_timeout = 25;
+module_param(write_timeout, uint, 0);
+MODULE_PARM_DESC(write_timeout, "Time (in ms) to try writes (default 25)");
+
+#define AT24_SIZE_BYTELEN 5
+#define AT24_SIZE_FLAGS 8
+
+#define AT24_BITMASK(x) (BIT(x) - 1)
+
+/* create non-zero magic value for given eeprom parameters */
+#define AT24_DEVICE_MAGIC(_len, _flags) 		\
+	((1 << AT24_SIZE_FLAGS | (_flags)) 		\
+	    << AT24_SIZE_BYTELEN | ilog2(_len))
+
+static const struct i2c_device_id at24_ids[] = {
+	/* needs 8 addresses as A0-A2 are ignored */
+	{ "24c00", AT24_DEVICE_MAGIC(128 / 8, AT24_FLAG_TAKE8ADDR) },
+	/* old variants can't be handled with this generic entry! */
+	{ "24c01", AT24_DEVICE_MAGIC(1024 / 8, 0) },
+	{ "24c02", AT24_DEVICE_MAGIC(2048 / 8, 0) },
+	/* spd is a 24c02 in memory DIMMs */
+	{ "spd", AT24_DEVICE_MAGIC(2048 / 8,
+		AT24_FLAG_READONLY | AT24_FLAG_IRUGO) },
+	/* pcf8570 has SRAM only */
+	{ "pcf8570", AT24_DEVICE_MAGIC(2048 / 8, 0) },
+	{ "24c04", AT24_DEVICE_MAGIC(4096 / 8, 0) },
+	/* 24rf08 quirk is handled at i2c-core */
+	{ "24c08", AT24_DEVICE_MAGIC(8192 / 8, 0) },
+	{ "24c16", AT24_DEVICE_MAGIC(16384 / 8, 0) },
+	{ "24c32", AT24_DEVICE_MAGIC(32768 / 8, AT24_FLAG_ADDR16) },
+	{ "24c64", AT24_DEVICE_MAGIC(65536 / 8, AT24_FLAG_ADDR16) },
+	{ "24c128", AT24_DEVICE_MAGIC(131072 / 8, AT24_FLAG_ADDR16) },
+	{ "24c256", AT24_DEVICE_MAGIC(262144 / 8, AT24_FLAG_ADDR16) },
+	{ "24c512", AT24_DEVICE_MAGIC(524288 / 8, AT24_FLAG_ADDR16) },
+	{ "24c1024", AT24_DEVICE_MAGIC(1048576 / 8, AT24_FLAG_ADDR16) },
+	{ "at24", 0 },
+	{ /* END OF LIST */ }
+};
+MODULE_DEVICE_TABLE(i2c, at24_ids);
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * This routine supports chips which consume multiple I2C addresses. It
+ * computes the addressing information to be used for a given r/w request.
+ * Assumes that sanity checks for offset happened at sysfs-layer.
+ */
+static struct i2c_client *at24_translate_offset(struct at24_data *at24,
+		unsigned *offset)
+{
+	unsigned i;
+
+	if (at24->chip.flags & AT24_FLAG_ADDR16) {
+		i = *offset >> 16;
+		*offset &= 0xffff;
+	} else {
+		i = *offset >> 8;
+		*offset &= 0xff;
+	}
+
+	return at24->client[i];
+}
+
+static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
+		unsigned offset, size_t count)
+{
+	struct i2c_msg msg[2];
+	u8 msgbuf[2];
+	struct i2c_client *client;
+	int status, i;
+
+	memset(msg, 0, sizeof(msg));
+
+	/*
+	 * REVISIT some multi-address chips don't rollover page reads to
+	 * the next slave address, so we may need to truncate the count.
+	 * Those chips might need another quirk flag.
+	 *
+	 * If the real hardware used four adjacent 24c02 chips and that
+	 * were misconfigured as one 24c08, that would be a similar effect:
+	 * one "eeprom" file not four, but larger reads would fail when
+	 * they crossed certain pages.
+	 */
+
+	/*
+	 * Slave address and byte offset derive from the offset. Always
+	 * set the byte address; on a multi-master board, another master
+	 * may have changed the chip's "current" address pointer.
+	 */
+	client = at24_translate_offset(at24, &offset);
+
+	if (count > io_limit)
+		count = io_limit;
+
+	/* Smaller eeproms can work given some SMBus extension calls */
+	if (at24->use_smbus) {
+		if (count > I2C_SMBUS_BLOCK_MAX)
+			count = I2C_SMBUS_BLOCK_MAX;
+		status = i2c_smbus_read_i2c_block_data(client, offset,
+				count, buf);
+		dev_dbg(&client->dev, "smbus read %zd@%d --> %d\n",
+				count, offset, status);
+		return (status < 0) ? -EIO : status;
+	}
+
+	/*
+	 * When we have a better choice than SMBus calls, use a combined
+	 * I2C message. Write address; then read up to io_limit data bytes.
+	 * Note that read page rollover helps us here (unlike writes).
+	 * msgbuf is u8 and will cast to our needs.
+	 */
+	i = 0;
+	if (at24->chip.flags & AT24_FLAG_ADDR16)
+		msgbuf[i++] = offset >> 8;
+	msgbuf[i++] = offset;
+
+	msg[0].addr = client->addr;
+	msg[0].buf = msgbuf;
+	msg[0].len = i;
+
+	msg[1].addr = client->addr;
+	msg[1].flags = I2C_M_RD;
+	msg[1].buf = buf;
+	msg[1].len = count;
+
+	status = i2c_transfer(client->adapter, msg, 2);
+	dev_dbg(&client->dev, "i2c read %zd@%d --> %d\n",
+			count, offset, status);
+
+	if (status == 2)
+		return count;
+	else if (status >= 0)
+		return -EIO;
+	else
+		return status;
+}
+
+static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
+		char *buf, loff_t off, size_t count)
+{
+	struct at24_data *at24;
+	ssize_t retval = 0;
+
+	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+	if (unlikely(!count))
+		return count;
+
+	/*
+	 * Read data from chip, protecting against concurrent updates
+	 * from this host, but not from other I2C masters.
+	 */
+	mutex_lock(&at24->lock);
+
+	while (count) {
+		ssize_t	status;
+
+		status = at24_eeprom_read(at24, buf, off, count);
+		if (status <= 0) {
+			if (retval == 0)
+				retval = status;
+			break;
+		}
+		buf += status;
+		off += status;
+		count -= status;
+		retval += status;
+	}
+
+	mutex_unlock(&at24->lock);
+
+	return retval;
+}
+
+
+/*
+ * REVISIT: export at24_bin{read,write}() to let other kernel code use
+ * eeprom data. For example, it might hold a board's Ethernet address, or
+ * board-specific calibration data generated on the manufacturing floor.
+ */
+
+
+/*
+ * Note that if the hardware write-protect pin is pulled high, the whole
+ * chip is normally write protected. But there are plenty of product
+ * variants here, including OTP fuses and partial chip protect.
+ *
+ * We only use page mode writes; the alternative is sloooow. This routine
+ * writes at most one page.
+ */
+static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
+		unsigned offset, size_t count)
+{
+	struct i2c_client *client;
+	struct i2c_msg msg;
+	ssize_t status;
+	unsigned long timeout, write_time;
+	unsigned next_page;
+
+	/* Get corresponding I2C address and adjust offset */
+	client = at24_translate_offset(at24, &offset);
+
+	/* write_max is at most a page */
+	if (count > at24->write_max)
+		count = at24->write_max;
+
+	/* Never roll over backwards, to the start of this page */
+	next_page = roundup(offset + 1, at24->chip.page_size);
+	if (offset + count > next_page)
+		count = next_page - offset;
+
+	/* If we'll use I2C calls for I/O, set up the message */
+	if (!at24->use_smbus) {
+		int i = 0;
+
+		msg.addr = client->addr;
+		msg.flags = 0;
+
+		/* msg.buf is u8 and casts will mask the values */
+		msg.buf = at24->writebuf;
+		if (at24->chip.flags & AT24_FLAG_ADDR16)
+			msg.buf[i++] = offset >> 8;
+
+		msg.buf[i++] = offset;
+		memcpy(&msg.buf[i], buf, count);
+		msg.len = i + count;
+	}
+
+	/*
+	 * Writes fail if the previous one didn't complete yet. We may
+	 * loop a few times until this one succeeds, waiting at least
+	 * long enough for one entire page write to work.
+	 */
+	timeout = jiffies + msecs_to_jiffies(write_timeout);
+	do {
+		write_time = jiffies;
+		if (at24->use_smbus) {
+			status = i2c_smbus_write_i2c_block_data(client,
+					offset, count, buf);
+			if (status == 0)
+				status = count;
+		} else {
+			status = i2c_transfer(client->adapter, &msg, 1);
+			if (status == 1)
+				status = count;
+		}
+		dev_dbg(&client->dev, "write %zd@%d --> %zd (%ld)\n",
+				count, offset, status, jiffies);
+
+		if (status == count)
+			return count;
+
+		/* REVISIT: at HZ=100, this is sloooow */
+		msleep(1);
+	} while (time_before(write_time, timeout));
+
+	return -ETIMEDOUT;
+}
+
+static ssize_t at24_bin_write(struct kobject *kobj, struct bin_attribute *attr,
+		char *buf, loff_t off, size_t count)
+{
+	struct at24_data *at24;
+	ssize_t retval = 0;
+
+	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+	if (unlikely(!count))
+		return count;
+
+	/*
+	 * Write data to chip, protecting against concurrent updates
+	 * from this host, but not from other I2C masters.
+	 */
+	mutex_lock(&at24->lock);
+
+	while (count) {
+		ssize_t	status;
+
+		status = at24_eeprom_write(at24, buf, off, count);
+		if (status <= 0) {
+			if (retval == 0)
+				retval = status;
+			break;
+		}
+		buf += status;
+		off += status;
+		count -= status;
+		retval += status;
+	}
+
+	mutex_unlock(&at24->lock);
+
+	return retval;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct at24_platform_data chip;
+	bool writable;
+	bool use_smbus = false;
+	struct at24_data *at24;
+	int err;
+	unsigned i, num_addresses;
+	kernel_ulong_t magic;
+
+	if (client->dev.platform_data) {
+		chip = *(struct at24_platform_data *)client->dev.platform_data;
+	} else {
+		if (!id->driver_data) {
+			err = -ENODEV;
+			goto err_out;
+		}
+		magic = id->driver_data;
+		chip.byte_len = BIT(magic & AT24_BITMASK(AT24_SIZE_BYTELEN));
+		magic >>= AT24_SIZE_BYTELEN;
+		chip.flags = magic & AT24_BITMASK(AT24_SIZE_FLAGS);
+		/*
+		 * This is slow, but we can't know all eeproms, so we better
+		 * play safe. Specifying custom eeprom-types via platform_data
+		 * is recommended anyhow.
+		 */
+		chip.page_size = 1;
+	}
+
+	if (!is_power_of_2(chip.byte_len))
+		dev_warn(&client->dev,
+			"byte_len looks suspicious (no power of 2)!\n");
+	if (!is_power_of_2(chip.page_size))
+		dev_warn(&client->dev,
+			"page_size looks suspicious (no power of 2)!\n");
+
+	/* Use I2C operations unless we're stuck with SMBus extensions. */
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		if (chip.flags & AT24_FLAG_ADDR16) {
+			err = -EPFNOSUPPORT;
+			goto err_out;
+		}
+		if (!i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_READ_I2C_BLOCK)) {
+			err = -EPFNOSUPPORT;
+			goto err_out;
+		}
+		use_smbus = true;
+	}
+
+	if (chip.flags & AT24_FLAG_TAKE8ADDR)
+		num_addresses = 8;
+	else
+		num_addresses =	DIV_ROUND_UP(chip.byte_len,
+			(chip.flags & AT24_FLAG_ADDR16) ? 65536 : 256);
+
+	at24 = kzalloc(sizeof(struct at24_data) +
+		num_addresses * sizeof(struct i2c_client *), GFP_KERNEL);
+	if (!at24) {
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	mutex_init(&at24->lock);
+	at24->use_smbus = use_smbus;
+	at24->chip = chip;
+	at24->num_addresses = num_addresses;
+
+	/*
+	 * Export the EEPROM bytes through sysfs, since that's convenient.
+	 * By default, only root should see the data (maybe passwords etc)
+	 */
+	at24->bin.attr.name = "eeprom";
+	at24->bin.attr.mode = chip.flags & AT24_FLAG_IRUGO ? S_IRUGO : S_IRUSR;
+	at24->bin.attr.owner = THIS_MODULE;
+	at24->bin.read = at24_bin_read;
+	at24->bin.size = chip.byte_len;
+
+	writable = !(chip.flags & AT24_FLAG_READONLY);
+	if (writable) {
+		if (!use_smbus || i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) {
+
+			unsigned write_max = chip.page_size;
+
+			at24->bin.write = at24_bin_write;
+			at24->bin.attr.mode |= S_IWUSR;
+
+			if (write_max > io_limit)
+				write_max = io_limit;
+			if (use_smbus && write_max > I2C_SMBUS_BLOCK_MAX)
+				write_max = I2C_SMBUS_BLOCK_MAX;
+			at24->write_max = write_max;
+
+			/* buffer (data + address at the beginning) */
+			at24->writebuf = kmalloc(write_max + 2, GFP_KERNEL);
+			if (!at24->writebuf) {
+				err = -ENOMEM;
+				goto err_struct;
+			}
+		} else {
+			dev_warn(&client->dev,
+				"cannot write due to controller restrictions.");
+		}
+	}
+
+	at24->client[0] = client;
+
+	/* use dummy devices for multiple-address chips */
+	for (i = 1; i < num_addresses; i++) {
+		at24->client[i] = i2c_new_dummy(client->adapter,
+					client->addr + i);
+		if (!at24->client[i]) {
+			dev_err(&client->dev, "address 0x%02x unavailable\n",
+					client->addr + i);
+			err = -EADDRINUSE;
+			goto err_clients;
+		}
+	}
+
+	err = sysfs_create_bin_file(&client->dev.kobj, &at24->bin);
+	if (err)
+		goto err_clients;
+
+	i2c_set_clientdata(client, at24);
+
+	dev_info(&client->dev, "%Zd byte %s EEPROM %s\n",
+		at24->bin.size, client->name,
+		writable ? "(writable)" : "(read-only)");
+	dev_dbg(&client->dev,
+		"page_size %d, num_addresses %d, write_max %d%s\n",
+		chip.page_size, num_addresses,
+		at24->write_max,
+		use_smbus ? ", use_smbus" : "");
+
+	return 0;
+
+err_clients:
+	for (i = 1; i < num_addresses; i++)
+		if (at24->client[i])
+			i2c_unregister_device(at24->client[i]);
+
+	kfree(at24->writebuf);
+err_struct:
+	kfree(at24);
+err_out:
+	dev_dbg(&client->dev, "probe error %d\n", err);
+	return err;
+}
+
+static int __devexit at24_remove(struct i2c_client *client)
+{
+	struct at24_data *at24;
+	int i;
+
+	at24 = i2c_get_clientdata(client);
+	sysfs_remove_bin_file(&client->dev.kobj, &at24->bin);
+
+	for (i = 1; i < at24->num_addresses; i++)
+		i2c_unregister_device(at24->client[i]);
+
+	kfree(at24->writebuf);
+	kfree(at24);
+	i2c_set_clientdata(client, NULL);
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct i2c_driver at24_driver = {
+	.driver = {
+		.name = "at24",
+		.owner = THIS_MODULE,
+	},
+	.probe = at24_probe,
+	.remove = __devexit_p(at24_remove),
+	.id_table = at24_ids,
+};
+
+static int __init at24_init(void)
+{
+	io_limit = rounddown_pow_of_two(io_limit);
+	return i2c_add_driver(&at24_driver);
+}
+module_init(at24_init);
+
+static void __exit at24_exit(void)
+{
+	i2c_del_driver(&at24_driver);
+}
+module_exit(at24_exit);
+
+MODULE_DESCRIPTION("Driver for most I2C EEPROMs");
+MODULE_AUTHOR("David Brownell and Wolfram Sang");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 7dee001e5133..fc17c4de7c21 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -1,6 +1,4 @@
 /*
-    eeprom.c - Part of lm_sensors, Linux kernel modules for hardware
-               monitoring
     Copyright (C) 1998, 1999  Frodo Looijaard <frodol@dds.nl> and
 			       Philip Edelbrock <phil@netroedge.com>
     Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
@@ -53,7 +51,6 @@ enum eeprom_nature {
 
 /* Each client has this additional data */
 struct eeprom_data {
-	struct i2c_client client;
 	struct mutex update_lock;
 	u8 valid;			/* bitfield, bit!=0 if slice is valid */
 	unsigned long last_updated[8];	/* In jiffies, 8 slices */
@@ -62,23 +59,34 @@ struct eeprom_data {
 };
 
 
-static int eeprom_attach_adapter(struct i2c_adapter *adapter);
-static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind);
-static int eeprom_detach_client(struct i2c_client *client);
+static int eeprom_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int eeprom_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int eeprom_remove(struct i2c_client *client);
+
+static struct i2c_device_id eeprom_id[] = {
+	{ "eeprom", 0 },
+	{ }
+};
 
 /* This is the driver that will be inserted */
 static struct i2c_driver eeprom_driver = {
+	.class		= I2C_CLASS_DDC | I2C_CLASS_SPD,
 	.driver = {
 		.name	= "eeprom",
 	},
-	.attach_adapter	= eeprom_attach_adapter,
-	.detach_client	= eeprom_detach_client,
+	.probe		= eeprom_probe,
+	.remove		= eeprom_remove,
+	.detect		= eeprom_detect,
+	.id_table	= eeprom_id,
+	.address_data	= &addr_data,
 };
 
 static void eeprom_update_client(struct i2c_client *client, u8 slice)
 {
 	struct eeprom_data *data = i2c_get_clientdata(client);
-	int i, j;
+	int i;
 
 	mutex_lock(&data->update_lock);
 
@@ -93,15 +101,12 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice)
 							!= 32)
 					goto exit;
 		} else {
-			if (i2c_smbus_write_byte(client, slice << 5)) {
-				dev_dbg(&client->dev, "eeprom read start has failed!\n");
-				goto exit;
-			}
-			for (i = slice << 5; i < (slice + 1) << 5; i++) {
-				j = i2c_smbus_read_byte(client);
-				if (j < 0)
+			for (i = slice << 5; i < (slice + 1) << 5; i += 2) {
+				int word = i2c_smbus_read_word_data(client, i);
+				if (word < 0)
 					goto exit;
-				data->data[i] = (u8) j;
+				data->data[i] = word & 0xff;
+				data->data[i + 1] = word >> 8;
 			}
 		}
 		data->last_updated[slice] = jiffies;
@@ -157,93 +162,85 @@ static struct bin_attribute eeprom_attr = {
 	.read = eeprom_read,
 };
 
-static int eeprom_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int eeprom_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	return i2c_probe(adapter, &addr_data, eeprom_detect);
+	struct i2c_adapter *adapter = client->adapter;
+
+	/* EDID EEPROMs are often 24C00 EEPROMs, which answer to all
+	   addresses 0x50-0x57, but we only care about 0x50. So decline
+	   attaching to addresses >= 0x51 on DDC buses */
+	if (!(adapter->class & I2C_CLASS_SPD) && client->addr >= 0x51)
+		return -ENODEV;
+
+	/* There are four ways we can read the EEPROM data:
+	   (1) I2C block reads (faster, but unsupported by most adapters)
+	   (2) Word reads (128% overhead)
+	   (3) Consecutive byte reads (88% overhead, unsafe)
+	   (4) Regular byte data reads (265% overhead)
+	   The third and fourth methods are not implemented by this driver
+	   because all known adapters support one of the first two. */
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)
+	 && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
+		return -ENODEV;
+
+	strlcpy(info->type, "eeprom", I2C_NAME_SIZE);
+
+	return 0;
 }
 
-/* This function is called by i2c_probe */
-static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
+static int eeprom_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
 {
-	struct i2c_client *new_client;
+	struct i2c_adapter *adapter = client->adapter;
 	struct eeprom_data *data;
-	int err = 0;
-
-	/* There are three ways we can read the EEPROM data:
-	   (1) I2C block reads (faster, but unsupported by most adapters)
-	   (2) Consecutive byte reads (100% overhead)
-	   (3) Regular byte data reads (200% overhead)
-	   The third method is not implemented by this driver because all
-	   known adapters support at least the second. */
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA
-					    | I2C_FUNC_SMBUS_BYTE))
-		goto exit;
+	int err;
 
 	if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
 
-	new_client = &data->client;
 	memset(data->data, 0xff, EEPROM_SIZE);
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &eeprom_driver;
-	new_client->flags = 0;
-
-	/* Fill in the remaining client fields */
-	strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE);
-	data->valid = 0;
+	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 	data->nature = UNKNOWN;
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_kfree;
-
 	/* Detect the Vaio nature of EEPROMs.
 	   We use the "PCG-" or "VGN-" prefix as the signature. */
-	if (address == 0x57) {
+	if (client->addr == 0x57
+	 && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) {
 		char name[4];
 
-		name[0] = i2c_smbus_read_byte_data(new_client, 0x80);
-		name[1] = i2c_smbus_read_byte(new_client);
-		name[2] = i2c_smbus_read_byte(new_client);
-		name[3] = i2c_smbus_read_byte(new_client);
+		name[0] = i2c_smbus_read_byte_data(client, 0x80);
+		name[1] = i2c_smbus_read_byte_data(client, 0x81);
+		name[2] = i2c_smbus_read_byte_data(client, 0x82);
+		name[3] = i2c_smbus_read_byte_data(client, 0x83);
 
 		if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) {
-			dev_info(&new_client->dev, "Vaio EEPROM detected, "
+			dev_info(&client->dev, "Vaio EEPROM detected, "
 				 "enabling privacy protection\n");
 			data->nature = VAIO;
 		}
 	}
 
 	/* create the sysfs eeprom file */
-	err = sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr);
+	err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr);
 	if (err)
-		goto exit_detach;
+		goto exit_kfree;
 
 	return 0;
 
-exit_detach:
-	i2c_detach_client(new_client);
 exit_kfree:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int eeprom_detach_client(struct i2c_client *client)
+static int eeprom_remove(struct i2c_client *client)
 {
-	int err;
-
 	sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr);
-
-	err = i2c_detach_client(client);
-	if (err)
-		return err;
-
 	kfree(i2c_get_clientdata(client));
 
 	return 0;
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index b1b45dddb17e..d21cb32449e2 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -49,10 +49,9 @@ MODULE_LICENSE("GPL");
 
 struct isp1301 {
 	struct otg_transceiver	otg;
-	struct i2c_client	client;
+	struct i2c_client	*client;
 	void			(*i2c_release)(struct device *dev);
 
-	int			irq;
 	int			irq_type;
 
 	u32			last_otg_ctrl;
@@ -138,14 +137,6 @@ static inline void notresponding(struct isp1301 *isp)
 
 /*-------------------------------------------------------------------------*/
 
-/* only two addresses possible */
-#define	ISP_BASE		0x2c
-static unsigned short normal_i2c[] = {
-	ISP_BASE, ISP_BASE + 1,
-	I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD;
-
 static struct i2c_driver isp1301_driver;
 
 /* smbus apis are used for portability */
@@ -153,25 +144,25 @@ static struct i2c_driver isp1301_driver;
 static inline u8
 isp1301_get_u8(struct isp1301 *isp, u8 reg)
 {
-	return i2c_smbus_read_byte_data(&isp->client, reg + 0);
+	return i2c_smbus_read_byte_data(isp->client, reg + 0);
 }
 
 static inline int
 isp1301_get_u16(struct isp1301 *isp, u8 reg)
 {
-	return i2c_smbus_read_word_data(&isp->client, reg);
+	return i2c_smbus_read_word_data(isp->client, reg);
 }
 
 static inline int
 isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits)
 {
-	return i2c_smbus_write_byte_data(&isp->client, reg + 0, bits);
+	return i2c_smbus_write_byte_data(isp->client, reg + 0, bits);
 }
 
 static inline int
 isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
 {
-	return i2c_smbus_write_byte_data(&isp->client, reg + 1, bits);
+	return i2c_smbus_write_byte_data(isp->client, reg + 1, bits);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -349,10 +340,10 @@ isp1301_defer_work(struct isp1301 *isp, int work)
 	int status;
 
 	if (isp && !test_and_set_bit(work, &isp->todo)) {
-		(void) get_device(&isp->client.dev);
+		(void) get_device(&isp->client->dev);
 		status = schedule_work(&isp->work);
 		if (!status && !isp->working)
-			dev_vdbg(&isp->client.dev,
+			dev_vdbg(&isp->client->dev,
 				"work item %d may be lost\n", work);
 	}
 }
@@ -1107,7 +1098,7 @@ isp1301_work(struct work_struct *work)
 		/* transfer state from otg engine to isp1301 */
 		if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) {
 			otg_update_isp(isp);
-			put_device(&isp->client.dev);
+			put_device(&isp->client->dev);
 		}
 #endif
 		/* transfer state from isp1301 to otg engine */
@@ -1115,7 +1106,7 @@ isp1301_work(struct work_struct *work)
 			u8		stat = isp1301_clear_latch(isp);
 
 			isp_update_otg(isp, stat);
-			put_device(&isp->client.dev);
+			put_device(&isp->client->dev);
 		}
 
 		if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) {
@@ -1150,7 +1141,7 @@ isp1301_work(struct work_struct *work)
 			}
 			host_resume(isp);
 			// mdelay(10);
-			put_device(&isp->client.dev);
+			put_device(&isp->client->dev);
 		}
 
 		if (test_and_clear_bit(WORK_TIMER, &isp->todo)) {
@@ -1159,15 +1150,15 @@ isp1301_work(struct work_struct *work)
 			if (!stop)
 				mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
 #endif
-			put_device(&isp->client.dev);
+			put_device(&isp->client->dev);
 		}
 
 		if (isp->todo)
-			dev_vdbg(&isp->client.dev,
+			dev_vdbg(&isp->client->dev,
 				"work done, todo = 0x%lx\n",
 				isp->todo);
 		if (stop) {
-			dev_dbg(&isp->client.dev, "stop\n");
+			dev_dbg(&isp->client->dev, "stop\n");
 			break;
 		}
 	} while (isp->todo);
@@ -1191,7 +1182,7 @@ static void isp1301_release(struct device *dev)
 {
 	struct isp1301	*isp;
 
-	isp = container_of(dev, struct isp1301, client.dev);
+	isp = device_get_drvdata(dev);
 
 	/* ugly -- i2c hijacks our memory hook to wait_for_completion() */
 	if (isp->i2c_release)
@@ -1201,15 +1192,15 @@ static void isp1301_release(struct device *dev)
 
 static struct isp1301 *the_transceiver;
 
-static int isp1301_detach_client(struct i2c_client *i2c)
+static int __exit isp1301_remove(struct i2c_client *i2c)
 {
 	struct isp1301	*isp;
 
-	isp = container_of(i2c, struct isp1301, client);
+	isp = i2c_get_clientdata(i2c);
 
 	isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
 	isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
-	free_irq(isp->irq, isp);
+	free_irq(i2c->irq, isp);
 #ifdef	CONFIG_USB_OTG
 	otg_unbind(isp);
 #endif
@@ -1224,7 +1215,7 @@ static int isp1301_detach_client(struct i2c_client *i2c)
 	put_device(&i2c->dev);
 	the_transceiver = 0;
 
-	return i2c_detach_client(i2c);
+	return 0;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1257,7 +1248,7 @@ static int isp1301_otg_enable(struct isp1301 *isp)
 	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
 		INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
 
-	dev_info(&isp->client.dev, "ready for dual-role USB ...\n");
+	dev_info(&isp->client->dev, "ready for dual-role USB ...\n");
 
 	return 0;
 }
@@ -1282,7 +1273,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
 
 #ifdef	CONFIG_USB_OTG
 	isp->otg.host = host;
-	dev_dbg(&isp->client.dev, "registered host\n");
+	dev_dbg(&isp->client->dev, "registered host\n");
 	host_suspend(isp);
 	if (isp->otg.gadget)
 		return isp1301_otg_enable(isp);
@@ -1297,7 +1288,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
 	if (machine_is_omap_h2())
 		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
 
-	dev_info(&isp->client.dev, "A-Host sessions ok\n");
+	dev_info(&isp->client->dev, "A-Host sessions ok\n");
 	isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
 		INTR_ID_GND);
 	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
@@ -1315,7 +1306,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
 	return 0;
 
 #else
-	dev_dbg(&isp->client.dev, "host sessions not allowed\n");
+	dev_dbg(&isp->client->dev, "host sessions not allowed\n");
 	return -EINVAL;
 #endif
 
@@ -1341,7 +1332,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
 
 #ifdef	CONFIG_USB_OTG
 	isp->otg.gadget = gadget;
-	dev_dbg(&isp->client.dev, "registered gadget\n");
+	dev_dbg(&isp->client->dev, "registered gadget\n");
 	/* gadget driver may be suspended until vbus_connect () */
 	if (isp->otg.host)
 		return isp1301_otg_enable(isp);
@@ -1364,7 +1355,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
 		INTR_SESS_VLD);
 	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
 		INTR_VBUS_VLD);
-	dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
+	dev_info(&isp->client->dev, "B-Peripheral sessions ok\n");
 	dump_regs(isp, __func__);
 
 	/* If this has a Mini-AB connector, this mode is highly
@@ -1377,7 +1368,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
 	return 0;
 
 #else
-	dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n");
+	dev_dbg(&isp->client->dev, "peripheral sessions not allowed\n");
 	return -EINVAL;
 #endif
 }
@@ -1473,12 +1464,10 @@ isp1301_start_hnp(struct otg_transceiver *dev)
 
 /*-------------------------------------------------------------------------*/
 
-/* no error returns, they'd just make bus scanning stop */
-static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
+static int __init isp1301_probe(struct i2c_client *i2c)
 {
 	int			status;
 	struct isp1301		*isp;
-	struct i2c_client	*i2c;
 
 	if (the_transceiver)
 		return 0;
@@ -1492,37 +1481,19 @@ static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
 	isp->timer.function = isp1301_timer;
 	isp->timer.data = (unsigned long) isp;
 
-	isp->irq = -1;
-	isp->client.addr = address;
-	i2c_set_clientdata(&isp->client, isp);
-	isp->client.adapter = bus;
-	isp->client.driver = &isp1301_driver;
-	strlcpy(isp->client.name, DRIVER_NAME, I2C_NAME_SIZE);
-	i2c = &isp->client;
-
-	/* if this is a true probe, verify the chip ... */
-	if (kind < 0) {
-		status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
-		if (status != I2C_VENDOR_ID_PHILIPS) {
-			dev_dbg(&bus->dev, "addr %d not philips id: %d\n",
-				address, status);
-			goto fail1;
-		}
-		status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
-		if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
-			dev_dbg(&bus->dev, "%d not isp1301, %d\n",
-				address, status);
-			goto fail1;
-		}
-	}
+	i2c_set_clientdata(i2c, isp);
+	isp->client = i2c;
 
-	status = i2c_attach_client(i2c);
-	if (status < 0) {
-		dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n",
-				DRIVER_NAME, address, status);
-fail1:
-		kfree(isp);
-		return 0;
+	/* verify the chip (shouldn't be necesary) */
+	status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
+	if (status != I2C_VENDOR_ID_PHILIPS) {
+		dev_dbg(&i2c->dev, "not philips id: %d\n", status);
+		goto fail;
+	}
+	status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
+	if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
+		dev_dbg(&i2c->dev, "not isp1301, %d\n", status);
+		goto fail;
 	}
 	isp->i2c_release = i2c->dev.release;
 	i2c->dev.release = isp1301_release;
@@ -1551,7 +1522,7 @@ fail1:
 	status = otg_bind(isp);
 	if (status < 0) {
 		dev_dbg(&i2c->dev, "can't bind OTG\n");
-		goto fail2;
+		goto fail;
 	}
 #endif
 
@@ -1564,26 +1535,21 @@ fail1:
 
 		/* IRQ wired at M14 */
 		omap_cfg_reg(M14_1510_GPIO2);
-		isp->irq = OMAP_GPIO_IRQ(2);
 		if (gpio_request(2, "isp1301") == 0)
 			gpio_direction_input(2);
 		isp->irq_type = IRQF_TRIGGER_FALLING;
 	}
 
 	isp->irq_type |= IRQF_SAMPLE_RANDOM;
-	status = request_irq(isp->irq, isp1301_irq,
+	status = request_irq(i2c->irq, isp1301_irq,
 			isp->irq_type, DRIVER_NAME, isp);
 	if (status < 0) {
 		dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
-				isp->irq, status);
-#ifdef	CONFIG_USB_OTG
-fail2:
-#endif
-		i2c_detach_client(i2c);
-		goto fail1;
+				i2c->irq, status);
+		goto fail;
 	}
 
-	isp->otg.dev = &isp->client.dev;
+	isp->otg.dev = &i2c->dev;
 	isp->otg.label = DRIVER_NAME;
 
 	isp->otg.set_host = isp1301_set_host,
@@ -1614,22 +1580,25 @@ fail2:
 			status);
 
 	return 0;
-}
 
-static int isp1301_scan_bus(struct i2c_adapter *bus)
-{
-	if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA
-			| I2C_FUNC_SMBUS_READ_WORD_DATA))
-		return -EINVAL;
-	return i2c_probe(bus, &addr_data, isp1301_probe);
+fail:
+	kfree(isp);
+	return -ENODEV;
 }
 
+static struct i2c_device_id isp1301_id[] = {
+	{ "isp1301_omap", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, isp1301_id);
+
 static struct i2c_driver isp1301_driver = {
 	.driver = {
 		.name	= "isp1301_omap",
 	},
-	.attach_adapter	= isp1301_scan_bus,
-	.detach_client	= isp1301_detach_client,
+	.probe		= isp1301_probe,
+	.remove		= __exit_p(isp1301_remove),
+	.id_table	= isp1301_id,
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index cf507b3f60f3..d8dd3649f8a4 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -53,7 +53,7 @@ I2C_CLIENT_INSMOD_1(max6875);
 
 /* Each client has this additional data */
 struct max6875_data {
-	struct i2c_client	client;
+	struct i2c_client	*fake_client;
 	struct mutex		update_lock;
 
 	u32			valid;
@@ -61,17 +61,27 @@ struct max6875_data {
 	unsigned long		last_updated[USER_EEPROM_SLICES];
 };
 
-static int max6875_attach_adapter(struct i2c_adapter *adapter);
-static int max6875_detect(struct i2c_adapter *adapter, int address, int kind);
-static int max6875_detach_client(struct i2c_client *client);
+static int max6875_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max6875_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int max6875_remove(struct i2c_client *client);
+
+static struct i2c_device_id max6875_id[] = {
+	{ "max6875", 0 },
+	{ }
+};
 
 /* This is the driver that will be inserted */
 static struct i2c_driver max6875_driver = {
 	.driver = {
 		.name	= "max6875",
 	},
-	.attach_adapter	= max6875_attach_adapter,
-	.detach_client	= max6875_detach_client,
+	.probe		= max6875_probe,
+	.remove		= max6875_remove,
+	.id_table	= max6875_id,
+	.detect		= max6875_detect,
+	.address_data	= &addr_data,
 };
 
 static void max6875_update_slice(struct i2c_client *client, int slice)
@@ -159,95 +169,67 @@ static struct bin_attribute user_eeprom_attr = {
 	.read = max6875_read,
 };
 
-static int max6875_attach_adapter(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, max6875_detect);
-}
-
-/* This function is called by i2c_probe */
-static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max6875_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	struct i2c_client *real_client;
-	struct i2c_client *fake_client;
-	struct max6875_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE_DATA
 				     | I2C_FUNC_SMBUS_READ_BYTE))
-		return 0;
+		return -ENODEV;
 
 	/* Only check even addresses */
-	if (address & 1)
-		return 0;
+	if (client->addr & 1)
+		return -ENODEV;
+
+	strlcpy(info->type, "max6875", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max6875_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct max6875_data *data;
+	int err;
 
 	if (!(data = kzalloc(sizeof(struct max6875_data), GFP_KERNEL)))
 		return -ENOMEM;
 
 	/* A fake client is created on the odd address */
-	if (!(fake_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+	data->fake_client = i2c_new_dummy(client->adapter, client->addr + 1);
+	if (!data->fake_client) {
 		err = -ENOMEM;
-		goto exit_kfree1;
+		goto exit_kfree;
 	}
 
 	/* Init real i2c_client */
-	real_client = &data->client;
-	i2c_set_clientdata(real_client, data);
-	real_client->addr = address;
-	real_client->adapter = adapter;
-	real_client->driver = &max6875_driver;
-	real_client->flags = 0;
-	strlcpy(real_client->name, "max6875", I2C_NAME_SIZE);
+	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
-	/* Init fake client data */
-	i2c_set_clientdata(fake_client, NULL);
-	fake_client->addr = address | 1;
-	fake_client->adapter = adapter;
-	fake_client->driver = &max6875_driver;
-	fake_client->flags = 0;
-	strlcpy(fake_client->name, "max6875 subclient", I2C_NAME_SIZE);
-
-	if ((err = i2c_attach_client(real_client)) != 0)
-		goto exit_kfree2;
-
-	if ((err = i2c_attach_client(fake_client)) != 0)
-		goto exit_detach1;
-
-	err = sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr);
+	err = sysfs_create_bin_file(&client->dev.kobj, &user_eeprom_attr);
 	if (err)
-		goto exit_detach2;
+		goto exit_remove_fake;
 
 	return 0;
 
-exit_detach2:
-	i2c_detach_client(fake_client);
-exit_detach1:
-	i2c_detach_client(real_client);
-exit_kfree2:
-	kfree(fake_client);
-exit_kfree1:
+exit_remove_fake:
+	i2c_unregister_device(data->fake_client);
+exit_kfree:
 	kfree(data);
 	return err;
 }
 
-/* Will be called for both the real client and the fake client */
-static int max6875_detach_client(struct i2c_client *client)
+static int max6875_remove(struct i2c_client *client)
 {
-	int err;
 	struct max6875_data *data = i2c_get_clientdata(client);
 
-	/* data is NULL for the fake client */
-	if (data)
-		sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr);
+	i2c_unregister_device(data->fake_client);
 
-	err = i2c_detach_client(client);
-	if (err)
-		return err;
+	sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr);
+	kfree(data);
 
-	if (data)		/* real client */
-		kfree(data);
-	else			/* fake client */
-		kfree(client);
 	return 0;
 }
 
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c
index f43c4e79b55e..5e46036cf664 100644
--- a/drivers/i2c/chips/pca9539.c
+++ b/drivers/i2c/chips/pca9539.c
@@ -14,8 +14,8 @@
 #include <linux/i2c.h>
 #include <linux/hwmon-sysfs.h>
 
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {0x74, 0x75, 0x76, 0x77, I2C_CLIENT_END};
+/* Addresses to scan: none, device is not autodetected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_1(pca9539);
@@ -32,21 +32,27 @@ enum pca9539_cmd
 	PCA9539_DIRECTION_1	= 7,
 };
 
-static int pca9539_attach_adapter(struct i2c_adapter *adapter);
-static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pca9539_detach_client(struct i2c_client *client);
+static int pca9539_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int pca9539_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int pca9539_remove(struct i2c_client *client);
+
+static struct i2c_device_id pca9539_id[] = {
+	{ "pca9539", 0 },
+	{ }
+};
 
 /* This is the driver that will be inserted */
 static struct i2c_driver pca9539_driver = {
 	.driver = {
 		.name	= "pca9539",
 	},
-	.attach_adapter	= pca9539_attach_adapter,
-	.detach_client	= pca9539_detach_client,
-};
-
-struct pca9539_data {
-	struct i2c_client client;
+	.probe		= pca9539_probe,
+	.remove		= pca9539_remove,
+	.id_table	= pca9539_id,
+	.detect		= pca9539_detect,
+	.address_data	= &addr_data,
 };
 
 /* following are the sysfs callback functions */
@@ -105,75 +111,31 @@ static struct attribute_group pca9539_defattr_group = {
 	.attrs = pca9539_attributes,
 };
 
-static int pca9539_attach_adapter(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, pca9539_detect);
-}
-
-/* This function is called by i2c_probe */
-static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pca9539_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct pca9539_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet. */
-	if (!(data = kzalloc(sizeof(struct pca9539_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &pca9539_driver;
-	new_client->flags = 0;
-
-	if (kind < 0) {
-		/* Detection: the pca9539 only has 8 registers (0-7).
-		   A read of 7 should succeed, but a read of 8 should fail. */
-		if ((i2c_smbus_read_byte_data(new_client, 7) < 0) ||
-		    (i2c_smbus_read_byte_data(new_client, 8) >= 0))
-			goto exit_kfree;
-	}
-
-	strlcpy(new_client->name, "pca9539", I2C_NAME_SIZE);
-
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_kfree;
+		return -ENODEV;
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj,
-				 &pca9539_defattr_group);
-	if (err)
-		goto exit_detach;
+	strlcpy(info->type, "pca9539", I2C_NAME_SIZE);
 
 	return 0;
-
-exit_detach:
-	i2c_detach_client(new_client);
-exit_kfree:
-	kfree(data);
-exit:
-	return err;
 }
 
-static int pca9539_detach_client(struct i2c_client *client)
+static int pca9539_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	int err;
+	/* Register sysfs hooks */
+	return sysfs_create_group(&client->dev.kobj,
+				  &pca9539_defattr_group);
+}
 
+static int pca9539_remove(struct i2c_client *client)
+{
 	sysfs_remove_group(&client->dev.kobj, &pca9539_defattr_group);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
-
-	kfree(i2c_get_clientdata(client));
 	return 0;
 }
 
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index e5b31329b56e..efbe53c826a3 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -1,6 +1,4 @@
 /*
-    pcf8574.c - Part of lm_sensors, Linux kernel modules for hardware
-             monitoring
     Copyright (c) 2000  Frodo Looijaard <frodol@dds.nl>, 
                         Philip Edelbrock <phil@netroedge.com>,
                         Dan Eaton <dan.eaton@rocketlogix.com>
@@ -40,35 +38,40 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = {
-	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-	I2C_CLIENT_END
-};
+/* Addresses to scan: none, device can't be detected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_2(pcf8574, pcf8574a);
 
 /* Each client has this additional data */
 struct pcf8574_data {
-	struct i2c_client client;
-
 	int write;			/* Remember last written value */
 };
 
-static int pcf8574_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8574_detach_client(struct i2c_client *client);
+static int pcf8574_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int pcf8574_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int pcf8574_remove(struct i2c_client *client);
 static void pcf8574_init_client(struct i2c_client *client);
 
+static struct i2c_device_id pcf8574_id[] = {
+	{ "pcf8574", 0 },
+	{ "pcf8574a", 0 },
+	{ }
+};
+
 /* This is the driver that will be inserted */
 static struct i2c_driver pcf8574_driver = {
 	.driver = {
 		.name	= "pcf8574",
 	},
-	.attach_adapter	= pcf8574_attach_adapter,
-	.detach_client	= pcf8574_detach_client,
+	.probe		= pcf8574_probe,
+	.remove		= pcf8574_remove,
+	.id_table	= pcf8574_id,
+	.detect		= pcf8574_detect,
+	.address_data	= &addr_data,
 };
 
 /* following are the sysfs callback functions */
@@ -121,42 +124,22 @@ static const struct attribute_group pcf8574_attr_group = {
  * Real code
  */
 
-static int pcf8574_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8574_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	return i2c_probe(adapter, &addr_data, pcf8574_detect);
-}
-
-/* This function is called by i2c_probe */
-static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-	struct i2c_client *new_client;
-	struct pcf8574_data *data;
-	int err = 0;
-	const char *client_name = "";
+	struct i2c_adapter *adapter = client->adapter;
+	const char *client_name;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
-		goto exit;
-
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet. */
-	if (!(data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &pcf8574_driver;
-	new_client->flags = 0;
+		return -ENODEV;
 
 	/* Now, we would do the remaining detection. But the PCF8574 is plainly
 	   impossible to detect! Stupid chip. */
 
 	/* Determine the chip type */
 	if (kind <= 0) {
-		if (address >= 0x38 && address <= 0x3f)
+		if (client->addr >= 0x38 && client->addr <= 0x3f)
 			kind = pcf8574a;
 		else
 			kind = pcf8574;
@@ -166,40 +149,43 @@ static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
 		client_name = "pcf8574a";
 	else
 		client_name = "pcf8574";
+	strlcpy(info->type, client_name, I2C_NAME_SIZE);
 
-	/* Fill in the remaining client fields and put it into the global list */
-	strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+	return 0;
+}
+
+static int pcf8574_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct pcf8574_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-	
 	/* Initialize the PCF8574 chip */
-	pcf8574_init_client(new_client);
+	pcf8574_init_client(client);
 
 	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &pcf8574_attr_group);
+	err = sysfs_create_group(&client->dev.kobj, &pcf8574_attr_group);
 	if (err)
-		goto exit_detach;
+		goto exit_free;
 	return 0;
 
-      exit_detach:
-	i2c_detach_client(new_client);
       exit_free:
 	kfree(data);
       exit:
 	return err;
 }
 
-static int pcf8574_detach_client(struct i2c_client *client)
+static int pcf8574_remove(struct i2c_client *client)
 {
-	int err;
-
 	sysfs_remove_group(&client->dev.kobj, &pcf8574_attr_group);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(i2c_get_clientdata(client));
 	return 0;
 }
diff --git a/drivers/i2c/chips/pcf8575.c b/drivers/i2c/chips/pcf8575.c
index 3ea08ac0bfa3..4555415b8bda 100644
--- a/drivers/i2c/chips/pcf8575.c
+++ b/drivers/i2c/chips/pcf8575.c
@@ -32,11 +32,8 @@
 #include <linux/slab.h>  /* kzalloc() */
 #include <linux/sysfs.h> /* sysfs_create_group() */
 
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = {
-	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-	I2C_CLIENT_END
-};
+/* Addresses to scan: none, device can't be detected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD;
@@ -44,13 +41,19 @@ I2C_CLIENT_INSMOD;
 
 /* Each client has this additional data */
 struct pcf8575_data {
-	struct i2c_client client;
 	int write;		/* last written value, or error code */
 };
 
-static int pcf8575_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8575_detach_client(struct i2c_client *client);
+static int pcf8575_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int pcf8575_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int pcf8575_remove(struct i2c_client *client);
+
+static struct i2c_device_id pcf8575_id[] = {
+	{ "pcf8575", 0 },
+	{ }
+};
 
 /* This is the driver that will be inserted */
 static struct i2c_driver pcf8575_driver = {
@@ -58,8 +61,11 @@ static struct i2c_driver pcf8575_driver = {
 		.owner	= THIS_MODULE,
 		.name	= "pcf8575",
 	},
-	.attach_adapter	= pcf8575_attach_adapter,
-	.detach_client	= pcf8575_detach_client,
+	.probe		= pcf8575_probe,
+	.remove		= pcf8575_remove,
+	.id_table	= pcf8575_id,
+	.detect		= pcf8575_detect,
+	.address_data	= &addr_data,
 };
 
 /* following are the sysfs callback functions */
@@ -126,71 +132,55 @@ static const struct attribute_group pcf8575_attr_group = {
  * Real code
  */
 
-static int pcf8575_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8575_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	return i2c_probe(adapter, &addr_data, pcf8575_detect);
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+		return -ENODEV;
+
+	/* This is the place to detect whether the chip at the specified
+	   address really is a PCF8575 chip. However, there is no method known
+	   to detect whether an I2C chip is a PCF8575 or any other I2C chip. */
+
+	strlcpy(info->type, "pcf8575", I2C_NAME_SIZE);
+
+	return 0;
 }
 
-/* This function is called by i2c_probe */
-static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind)
+static int pcf8575_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
-	struct i2c_client *client;
 	struct pcf8575_data *data;
-	int err = 0;
-
-	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
-		goto exit;
+	int err;
 
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet. */
 	data = kzalloc(sizeof(struct pcf8575_data), GFP_KERNEL);
 	if (!data) {
 		err = -ENOMEM;
 		goto exit;
 	}
 
-	client = &data->client;
 	i2c_set_clientdata(client, data);
-	client->addr = address;
-	client->adapter = adapter;
-	client->driver = &pcf8575_driver;
-	strlcpy(client->name, "pcf8575", I2C_NAME_SIZE);
 	data->write = -EAGAIN;
 
-	/* This is the place to detect whether the chip at the specified
-	   address really is a PCF8575 chip. However, there is no method known
-	   to detect whether an I2C chip is a PCF8575 or any other I2C chip. */
-
-	/* Tell the I2C layer a new client has arrived */
-	err = i2c_attach_client(client);
-	if (err)
-		goto exit_free;
-
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &pcf8575_attr_group);
 	if (err)
-		goto exit_detach;
+		goto exit_free;
 
 	return 0;
 
-exit_detach:
-	i2c_detach_client(client);
 exit_free:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int pcf8575_detach_client(struct i2c_client *client)
+static int pcf8575_remove(struct i2c_client *client)
 {
-	int err;
-
 	sysfs_remove_group(&client->dev.kobj, &pcf8575_attr_group);
-
-	err = i2c_detach_client(client);
-	if (err)
-		return err;
-
 	kfree(i2c_get_clientdata(client));
 	return 0;
 }
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index 66c7c3bb9429..df9eb164f893 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -1,6 +1,4 @@
 /*
-    pcf8591.c - Part of lm_sensors, Linux kernel modules for hardware
-                monitoring
     Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net>
     Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with 
     the help of Jean Delvare <khali@linux-fr.org>
@@ -74,26 +72,37 @@ MODULE_PARM_DESC(input_mode,
 #define REG_TO_SIGNED(reg)	(((reg) & 0x80)?((reg) - 256):(reg))
 
 struct pcf8591_data {
-	struct i2c_client client;
 	struct mutex update_lock;
 
 	u8 control;
 	u8 aout;
 };
 
-static int pcf8591_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8591_detach_client(struct i2c_client *client);
+static int pcf8591_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int pcf8591_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int pcf8591_remove(struct i2c_client *client);
 static void pcf8591_init_client(struct i2c_client *client);
 static int pcf8591_read_channel(struct device *dev, int channel);
 
+static struct i2c_device_id pcf8591_id[] = {
+	{ "pcf8591", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pcf8591_id);
+
 /* This is the driver that will be inserted */
 static struct i2c_driver pcf8591_driver = {
+	.class		= I2C_CLASS_HWMON,	/* Nearest choice */
 	.driver = {
 		.name	= "pcf8591",
 	},
-	.attach_adapter	= pcf8591_attach_adapter,
-	.detach_client	= pcf8591_detach_client,
+	.probe		= pcf8591_probe,
+	.remove		= pcf8591_remove,
+	.id_table	= pcf8591_id,
+	.detect		= pcf8591_detect,
+	.address_data	= &addr_data,
 };
 
 /* following are the sysfs callback functions */
@@ -182,70 +191,57 @@ static const struct attribute_group pcf8591_attr_group_opt = {
 /*
  * Real code
  */
-static int pcf8591_attach_adapter(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, pcf8591_detect);
-}
 
-/* This function is called by i2c_probe */
-static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8591_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
 {
-	struct i2c_client *new_client;
-	struct pcf8591_data *data;
-	int err = 0;
+	struct i2c_adapter *adapter = client->adapter;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE
 				     | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
-		goto exit;
+		return -ENODEV;
+
+	/* Now, we would do the remaining detection. But the PCF8591 is plainly
+	   impossible to detect! Stupid chip. */
+
+	strlcpy(info->type, "pcf8591", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int pcf8591_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct pcf8591_data *data;
+	int err;
 
-	/* OK. For now, we presume we have a valid client. We now create the
-	   client structure, even though we cannot fill it completely yet. */
 	if (!(data = kzalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
 	
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &pcf8591_driver;
-	new_client->flags = 0;
-
-	/* Now, we would do the remaining detection. But the PCF8591 is plainly
-	   impossible to detect! Stupid chip. */
-
-	/* Determine the chip type - only one kind supported! */
-	if (kind <= 0)
-		kind = pcf8591;
-
-	/* Fill in the remaining client fields and put it into the global 
-	   list */
-	strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE);
+	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_kfree;
-
 	/* Initialize the PCF8591 chip */
-	pcf8591_init_client(new_client);
+	pcf8591_init_client(client);
 
 	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &pcf8591_attr_group);
+	err = sysfs_create_group(&client->dev.kobj, &pcf8591_attr_group);
 	if (err)
-		goto exit_detach;
+		goto exit_kfree;
 
 	/* Register input2 if not in "two differential inputs" mode */
 	if (input_mode != 3) {
-		if ((err = device_create_file(&new_client->dev,
+		if ((err = device_create_file(&client->dev,
 					      &dev_attr_in2_input)))
 			goto exit_sysfs_remove;
 	}
 
 	/* Register input3 only in "four single ended inputs" mode */
 	if (input_mode == 0) {
-		if ((err = device_create_file(&new_client->dev,
+		if ((err = device_create_file(&client->dev,
 					      &dev_attr_in3_input)))
 			goto exit_sysfs_remove;
 	}
@@ -253,26 +249,18 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
 	return 0;
 
 exit_sysfs_remove:
-	sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group_opt);
-	sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group);
-exit_detach:
-	i2c_detach_client(new_client);
+	sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
+	sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
 exit_kfree:
 	kfree(data);
 exit:
 	return err;
 }
 
-static int pcf8591_detach_client(struct i2c_client *client)
+static int pcf8591_remove(struct i2c_client *client)
 {
-	int err;
-
 	sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
 	sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
-
 	kfree(i2c_get_clientdata(client));
 	return 0;
 }
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 97d826827956..2aa42127fb72 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -29,13 +29,11 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/idr.h>
-#include <linux/seq_file.h>
 #include <linux/platform_device.h>
 #include <linux/mutex.h>
 #include <linux/completion.h>
 #include <linux/hardirq.h>
 #include <linux/irqflags.h>
-#include <linux/semaphore.h>
 #include <asm/uaccess.h>
 
 #include "i2c-core.h"
@@ -44,7 +42,9 @@
 static DEFINE_MUTEX(core_lock);
 static DEFINE_IDR(i2c_adapter_idr);
 
-#define is_newstyle_driver(d) ((d)->probe || (d)->remove)
+#define is_newstyle_driver(d) ((d)->probe || (d)->remove || (d)->detect)
+
+static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);
 
 /* ------------------------------------------------------------------------- */
 
@@ -103,19 +103,14 @@ static int i2c_device_probe(struct device *dev)
 {
 	struct i2c_client	*client = to_i2c_client(dev);
 	struct i2c_driver	*driver = to_i2c_driver(dev->driver);
-	const struct i2c_device_id *id;
 	int status;
 
-	if (!driver->probe)
+	if (!driver->probe || !driver->id_table)
 		return -ENODEV;
 	client->driver = driver;
 	dev_dbg(dev, "probe\n");
 
-	if (driver->id_table)
-		id = i2c_match_id(driver->id_table, client);
-	else
-		id = NULL;
-	status = driver->probe(client, id);
+	status = driver->probe(client, i2c_match_id(driver->id_table, client));
 	if (status)
 		client->driver = NULL;
 	return status;
@@ -208,7 +203,7 @@ static struct device_attribute i2c_dev_attrs[] = {
 	{ },
 };
 
-static struct bus_type i2c_bus_type = {
+struct bus_type i2c_bus_type = {
 	.name		= "i2c",
 	.dev_attrs	= i2c_dev_attrs,
 	.match		= i2c_device_match,
@@ -219,6 +214,7 @@ static struct bus_type i2c_bus_type = {
 	.suspend	= i2c_device_suspend,
 	.resume		= i2c_device_resume,
 };
+EXPORT_SYMBOL_GPL(i2c_bus_type);
 
 
 /**
@@ -416,6 +412,10 @@ static int i2c_do_add_adapter(struct device_driver *d, void *data)
 	struct i2c_driver *driver = to_i2c_driver(d);
 	struct i2c_adapter *adap = data;
 
+	/* Detect supported devices on that bus, and instantiate them */
+	i2c_detect(adap, driver);
+
+	/* Let legacy drivers scan this bus for matching devices */
 	if (driver->attach_adapter) {
 		/* We ignore the return code; if it fails, too bad */
 		driver->attach_adapter(adap);
@@ -455,7 +455,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 	if (adap->nr < __i2c_first_dynamic_bus_num)
 		i2c_scan_static_board_info(adap);
 
-	/* let legacy drivers scan this bus for matching devices */
+	/* Notify drivers */
 	dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap,
 				 i2c_do_add_adapter);
 
@@ -561,8 +561,19 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data)
 {
 	struct i2c_driver *driver = to_i2c_driver(d);
 	struct i2c_adapter *adapter = data;
+	struct i2c_client *client, *_n;
 	int res;
 
+	/* Remove the devices we created ourselves */
+	list_for_each_entry_safe(client, _n, &driver->clients, detected) {
+		if (client->adapter == adapter) {
+			dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
+				client->name, client->addr);
+			list_del(&client->detected);
+			i2c_unregister_device(client);
+		}
+	}
+
 	if (!driver->detach_adapter)
 		return 0;
 	res = driver->detach_adapter(adapter);
@@ -582,8 +593,7 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data)
  */
 int i2c_del_adapter(struct i2c_adapter *adap)
 {
-	struct list_head  *item, *_n;
-	struct i2c_client *client;
+	struct i2c_client *client, *_n;
 	int res = 0;
 
 	mutex_lock(&core_lock);
@@ -604,10 +614,9 @@ int i2c_del_adapter(struct i2c_adapter *adap)
 
 	/* detach any active clients. This must be done first, because
 	 * it can fail; in which case we give up. */
-	list_for_each_safe(item, _n, &adap->clients) {
+	list_for_each_entry_safe(client, _n, &adap->clients, list) {
 		struct i2c_driver	*driver;
 
-		client = list_entry(item, struct i2c_client, list);
 		driver = client->driver;
 
 		/* new style, follow standard driver model */
@@ -646,12 +655,17 @@ EXPORT_SYMBOL(i2c_del_adapter);
 
 /* ------------------------------------------------------------------------- */
 
-static int attach_device(struct device *dev, void *data)
+static int __attach_adapter(struct device *dev, void *data)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(dev);
 	struct i2c_driver *driver = data;
 
-	driver->attach_adapter(adapter);
+	i2c_detect(adapter, driver);
+
+	/* Legacy drivers scan i2c busses directly */
+	if (driver->attach_adapter)
+		driver->attach_adapter(adapter);
+
 	return 0;
 }
 
@@ -694,50 +708,57 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
 
 	pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
 
-	/* legacy drivers scan i2c busses directly */
-	if (driver->attach_adapter)
-		class_for_each_device(&i2c_adapter_class, NULL,
-				     (void *)driver, attach_device);
+	INIT_LIST_HEAD(&driver->clients);
+	/* Walk the adapters that are already present */
+	class_for_each_device(&i2c_adapter_class, NULL, driver,
+				__attach_adapter);
 
 	mutex_unlock(&core_lock);
 	return 0;
 }
 EXPORT_SYMBOL(i2c_register_driver);
 
-static int detach_device(struct device *dev, void *data)
+static int __detach_adapter(struct device *dev, void *data)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(dev);
 	struct i2c_driver *driver = data;
-	struct list_head *item2;
-	struct list_head *_n;
-	struct i2c_client *client;
+	struct i2c_client *client, *_n;
+
+	list_for_each_entry_safe(client, _n, &driver->clients, detected) {
+		dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
+			client->name, client->addr);
+		list_del(&client->detected);
+		i2c_unregister_device(client);
+	}
+
+	if (is_newstyle_driver(driver))
+		return 0;
 
 	/* Have a look at each adapter, if clients of this driver are still
 	 * attached. If so, detach them to be able to kill the driver
 	 * afterwards.
 	 */
 	if (driver->detach_adapter) {
-		if (driver->detach_adapter(adapter)) {
-			dev_err(&adapter->dev, "detach_adapter failed "
-				"for driver [%s]\n",
+		if (driver->detach_adapter(adapter))
+			dev_err(&adapter->dev,
+				"detach_adapter failed for driver [%s]\n",
 				driver->driver.name);
-		}
 	} else {
-		list_for_each_safe(item2, _n, &adapter->clients) {
-			client = list_entry(item2, struct i2c_client, list);
+		struct i2c_client *client, *_n;
+
+		list_for_each_entry_safe(client, _n, &adapter->clients, list) {
 			if (client->driver != driver)
 				continue;
-			dev_dbg(&adapter->dev, "detaching client [%s] "
-				"at 0x%02x\n", client->name,
-				client->addr);
-			if (driver->detach_client(client)) {
+			dev_dbg(&adapter->dev,
+				"detaching client [%s] at 0x%02x\n",
+				client->name, client->addr);
+			if (driver->detach_client(client))
 				dev_err(&adapter->dev, "detach_client "
-					"failed for client [%s] at "
-					"0x%02x\n", client->name,
-					client->addr);
-			}
+					"failed for client [%s] at 0x%02x\n",
+					client->name, client->addr);
 		}
 	}
+
 	return 0;
 }
 
@@ -750,15 +771,9 @@ void i2c_del_driver(struct i2c_driver *driver)
 {
 	mutex_lock(&core_lock);
 
-	/* new-style driver? */
-	if (is_newstyle_driver(driver))
-		goto unregister;
-
-	/* old-style driver, do it by hand */
-	class_for_each_device(&i2c_adapter_class, NULL, (void *)driver,
-			      detach_device);
+	class_for_each_device(&i2c_adapter_class, NULL, driver,
+				__detach_adapter);
 
- unregister:
 	driver_unregister(&driver->driver);
 	pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name);
 
@@ -871,8 +886,9 @@ EXPORT_SYMBOL(i2c_detach_client);
  */
 struct i2c_client *i2c_use_client(struct i2c_client *client)
 {
-	get_device(&client->dev);
-	return client;
+	if (client && get_device(&client->dev))
+		return client;
+	return NULL;
 }
 EXPORT_SYMBOL(i2c_use_client);
 
@@ -884,7 +900,8 @@ EXPORT_SYMBOL(i2c_use_client);
  */
 void i2c_release_client(struct i2c_client *client)
 {
-	put_device(&client->dev);
+	if (client)
+		put_device(&client->dev);
 }
 EXPORT_SYMBOL(i2c_release_client);
 
@@ -950,10 +967,39 @@ module_exit(i2c_exit);
  * ----------------------------------------------------
  */
 
+/**
+ * i2c_transfer - execute a single or combined I2C message
+ * @adap: Handle to I2C bus
+ * @msgs: One or more messages to execute before STOP is issued to
+ *	terminate the operation; each message begins with a START.
+ * @num: Number of messages to be executed.
+ *
+ * Returns negative errno, else the number of messages executed.
+ *
+ * Note that there is no requirement that each message be sent to
+ * the same slave address, although that is the most common model.
+ */
 int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
 {
 	int ret;
 
+	/* REVISIT the fault reporting model here is weak:
+	 *
+	 *  - When we get an error after receiving N bytes from a slave,
+	 *    there is no way to report "N".
+	 *
+	 *  - When we get a NAK after transmitting N bytes to a slave,
+	 *    there is no way to report "N" ... or to let the master
+	 *    continue executing the rest of this combined message, if
+	 *    that's the appropriate response.
+	 *
+	 *  - When for example "num" is two and we successfully complete
+	 *    the first message but get an error part way through the
+	 *    second, it's unclear whether that should be reported as
+	 *    one (discarding status on the second message) or errno
+	 *    (discarding status on the first one).
+	 */
+
 	if (adap->algo->master_xfer) {
 #ifdef DEBUG
 		for (ret = 0; ret < num; ret++) {
@@ -979,11 +1025,19 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
 		return ret;
 	} else {
 		dev_dbg(&adap->dev, "I2C level transfers not supported\n");
-		return -ENOSYS;
+		return -EOPNOTSUPP;
 	}
 }
 EXPORT_SYMBOL(i2c_transfer);
 
+/**
+ * i2c_master_send - issue a single I2C message in master transmit mode
+ * @client: Handle to slave device
+ * @buf: Data that will be written to the slave
+ * @count: How many bytes to write
+ *
+ * Returns negative errno, or else the number of bytes written.
+ */
 int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
 {
 	int ret;
@@ -1003,6 +1057,14 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
 }
 EXPORT_SYMBOL(i2c_master_send);
 
+/**
+ * i2c_master_recv - issue a single I2C message in master receive mode
+ * @client: Handle to slave device
+ * @buf: Where to store data read from slave
+ * @count: How many bytes to read
+ *
+ * Returns negative errno, or else the number of bytes read.
+ */
 int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
 {
 	struct i2c_adapter *adap=client->adapter;
@@ -1111,7 +1173,7 @@ int i2c_probe(struct i2c_adapter *adapter,
 
 		dev_warn(&adapter->dev, "SMBus Quick command not supported, "
 			 "can't probe for chips\n");
-		return -1;
+		return -EOPNOTSUPP;
 	}
 
 	/* Probe entries are done second, and are not affected by ignore
@@ -1165,6 +1227,178 @@ int i2c_probe(struct i2c_adapter *adapter,
 }
 EXPORT_SYMBOL(i2c_probe);
 
+/* Separate detection function for new-style drivers */
+static int i2c_detect_address(struct i2c_client *temp_client, int kind,
+			      struct i2c_driver *driver)
+{
+	struct i2c_board_info info;
+	struct i2c_adapter *adapter = temp_client->adapter;
+	int addr = temp_client->addr;
+	int err;
+
+	/* Make sure the address is valid */
+	if (addr < 0x03 || addr > 0x77) {
+		dev_warn(&adapter->dev, "Invalid probe address 0x%02x\n",
+			 addr);
+		return -EINVAL;
+	}
+
+	/* Skip if already in use */
+	if (i2c_check_addr(adapter, addr))
+		return 0;
+
+	/* Make sure there is something at this address, unless forced */
+	if (kind < 0) {
+		if (i2c_smbus_xfer(adapter, addr, 0, 0, 0,
+				   I2C_SMBUS_QUICK, NULL) < 0)
+			return 0;
+
+		/* prevent 24RF08 corruption */
+		if ((addr & ~0x0f) == 0x50)
+			i2c_smbus_xfer(adapter, addr, 0, 0, 0,
+				       I2C_SMBUS_QUICK, NULL);
+	}
+
+	/* Finally call the custom detection function */
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	info.addr = addr;
+	err = driver->detect(temp_client, kind, &info);
+	if (err) {
+		/* -ENODEV is returned if the detection fails. We catch it
+		   here as this isn't an error. */
+		return err == -ENODEV ? 0 : err;
+	}
+
+	/* Consistency check */
+	if (info.type[0] == '\0') {
+		dev_err(&adapter->dev, "Detection function returned "
+			"inconsistent data for 0x%x\n", addr);
+	} else {
+		struct i2c_client *client;
+
+		/* Detection succeeded, instantiate the device */
+		dev_dbg(&adapter->dev, "Creating %s at 0x%02x\n",
+			info.type, info.addr);
+		client = i2c_new_device(adapter, &info);
+		if (client)
+			list_add_tail(&client->detected, &driver->clients);
+		else
+			dev_err(&adapter->dev, "Failed creating %s at 0x%02x\n",
+				info.type, info.addr);
+	}
+	return 0;
+}
+
+static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
+{
+	const struct i2c_client_address_data *address_data;
+	struct i2c_client *temp_client;
+	int i, err = 0;
+	int adap_id = i2c_adapter_id(adapter);
+
+	address_data = driver->address_data;
+	if (!driver->detect || !address_data)
+		return 0;
+
+	/* Set up a temporary client to help detect callback */
+	temp_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	if (!temp_client)
+		return -ENOMEM;
+	temp_client->adapter = adapter;
+
+	/* Force entries are done first, and are not affected by ignore
+	   entries */
+	if (address_data->forces) {
+		const unsigned short * const *forces = address_data->forces;
+		int kind;
+
+		for (kind = 0; forces[kind]; kind++) {
+			for (i = 0; forces[kind][i] != I2C_CLIENT_END;
+			     i += 2) {
+				if (forces[kind][i] == adap_id
+				 || forces[kind][i] == ANY_I2C_BUS) {
+					dev_dbg(&adapter->dev, "found force "
+						"parameter for adapter %d, "
+						"addr 0x%02x, kind %d\n",
+						adap_id, forces[kind][i + 1],
+						kind);
+					temp_client->addr = forces[kind][i + 1];
+					err = i2c_detect_address(temp_client,
+						kind, driver);
+					if (err)
+						goto exit_free;
+				}
+			}
+		}
+	}
+
+	/* Stop here if we can't use SMBUS_QUICK */
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {
+		if (address_data->probe[0] == I2C_CLIENT_END
+		 && address_data->normal_i2c[0] == I2C_CLIENT_END)
+			goto exit_free;
+
+		dev_warn(&adapter->dev, "SMBus Quick command not supported, "
+			 "can't probe for chips\n");
+		err = -EOPNOTSUPP;
+		goto exit_free;
+	}
+
+	/* Stop here if the classes do not match */
+	if (!(adapter->class & driver->class))
+		goto exit_free;
+
+	/* Probe entries are done second, and are not affected by ignore
+	   entries either */
+	for (i = 0; address_data->probe[i] != I2C_CLIENT_END; i += 2) {
+		if (address_data->probe[i] == adap_id
+		 || address_data->probe[i] == ANY_I2C_BUS) {
+			dev_dbg(&adapter->dev, "found probe parameter for "
+				"adapter %d, addr 0x%02x\n", adap_id,
+				address_data->probe[i + 1]);
+			temp_client->addr = address_data->probe[i + 1];
+			err = i2c_detect_address(temp_client, -1, driver);
+			if (err)
+				goto exit_free;
+		}
+	}
+
+	/* Normal entries are done last, unless shadowed by an ignore entry */
+	for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) {
+		int j, ignore;
+
+		ignore = 0;
+		for (j = 0; address_data->ignore[j] != I2C_CLIENT_END;
+		     j += 2) {
+			if ((address_data->ignore[j] == adap_id ||
+			     address_data->ignore[j] == ANY_I2C_BUS)
+			 && address_data->ignore[j + 1]
+			    == address_data->normal_i2c[i]) {
+				dev_dbg(&adapter->dev, "found ignore "
+					"parameter for adapter %d, "
+					"addr 0x%02x\n", adap_id,
+					address_data->ignore[j + 1]);
+				ignore = 1;
+				break;
+			}
+		}
+		if (ignore)
+			continue;
+
+		dev_dbg(&adapter->dev, "found normal entry for adapter %d, "
+			"addr 0x%02x\n", adap_id,
+			address_data->normal_i2c[i]);
+		temp_client->addr = address_data->normal_i2c[i];
+		err = i2c_detect_address(temp_client, -1, driver);
+		if (err)
+			goto exit_free;
+	}
+
+ exit_free:
+	kfree(temp_client);
+	return err;
+}
+
 struct i2c_client *
 i2c_new_probed_device(struct i2c_adapter *adap,
 		      struct i2c_board_info *info,
@@ -1303,29 +1537,38 @@ static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
 	if (rpec != cpec) {
 		pr_debug("i2c-core: Bad PEC 0x%02x vs. 0x%02x\n",
 			rpec, cpec);
-		return -1;
+		return -EBADMSG;
 	}
 	return 0;
 }
 
-s32 i2c_smbus_write_quick(struct i2c_client *client, u8 value)
-{
-	return i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-	                      value,0,I2C_SMBUS_QUICK,NULL);
-}
-EXPORT_SYMBOL(i2c_smbus_write_quick);
-
+/**
+ * i2c_smbus_read_byte - SMBus "receive byte" protocol
+ * @client: Handle to slave device
+ *
+ * This executes the SMBus "receive byte" protocol, returning negative errno
+ * else the byte received from the device.
+ */
 s32 i2c_smbus_read_byte(struct i2c_client *client)
 {
 	union i2c_smbus_data data;
-	if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-	                   I2C_SMBUS_READ,0,I2C_SMBUS_BYTE, &data))
-		return -1;
-	else
-		return data.byte;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, 0,
+				I2C_SMBUS_BYTE, &data);
+	return (status < 0) ? status : data.byte;
 }
 EXPORT_SYMBOL(i2c_smbus_read_byte);
 
+/**
+ * i2c_smbus_write_byte - SMBus "send byte" protocol
+ * @client: Handle to slave device
+ * @value: Byte to be sent
+ *
+ * This executes the SMBus "send byte" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value)
 {
 	return i2c_smbus_xfer(client->adapter,client->addr,client->flags,
@@ -1333,17 +1576,35 @@ s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value)
 }
 EXPORT_SYMBOL(i2c_smbus_write_byte);
 
+/**
+ * i2c_smbus_read_byte_data - SMBus "read byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read byte" protocol, returning negative errno
+ * else a data byte received from the device.
+ */
 s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command)
 {
 	union i2c_smbus_data data;
-	if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-	                   I2C_SMBUS_READ,command, I2C_SMBUS_BYTE_DATA,&data))
-		return -1;
-	else
-		return data.byte;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_BYTE_DATA, &data);
+	return (status < 0) ? status : data.byte;
 }
 EXPORT_SYMBOL(i2c_smbus_read_byte_data);
 
+/**
+ * i2c_smbus_write_byte_data - SMBus "write byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: Byte being written
+ *
+ * This executes the SMBus "write byte" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value)
 {
 	union i2c_smbus_data data;
@@ -1354,17 +1615,35 @@ s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value)
 }
 EXPORT_SYMBOL(i2c_smbus_write_byte_data);
 
+/**
+ * i2c_smbus_read_word_data - SMBus "read word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read word" protocol, returning negative errno
+ * else a 16-bit unsigned "word" received from the device.
+ */
 s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command)
 {
 	union i2c_smbus_data data;
-	if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-	                   I2C_SMBUS_READ,command, I2C_SMBUS_WORD_DATA, &data))
-		return -1;
-	else
-		return data.word;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_WORD_DATA, &data);
+	return (status < 0) ? status : data.word;
 }
 EXPORT_SYMBOL(i2c_smbus_read_word_data);
 
+/**
+ * i2c_smbus_write_word_data - SMBus "write word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: 16-bit "word" being written
+ *
+ * This executes the SMBus "write word" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
 {
 	union i2c_smbus_data data;
@@ -1376,15 +1655,14 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
 EXPORT_SYMBOL(i2c_smbus_write_word_data);
 
 /**
- * i2c_smbus_read_block_data - SMBus block read request
+ * i2c_smbus_read_block_data - SMBus "block read" protocol
  * @client: Handle to slave device
- * @command: Command byte issued to let the slave know what data should
- *	be returned
+ * @command: Byte interpreted by slave
  * @values: Byte array into which data will be read; big enough to hold
  *	the data returned by the slave.  SMBus allows at most 32 bytes.
  *
- * Returns the number of bytes read in the slave's response, else a
- * negative number to indicate some kind of error.
+ * This executes the SMBus "block read" protocol, returning negative errno
+ * else the number of data bytes in the slave's response.
  *
  * Note that using this function requires that the client's adapter support
  * the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality.  Not all adapter drivers
@@ -1395,17 +1673,29 @@ s32 i2c_smbus_read_block_data(struct i2c_client *client, u8 command,
 			      u8 *values)
 {
 	union i2c_smbus_data data;
+	int status;
 
-	if (i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-	                   I2C_SMBUS_READ, command,
-	                   I2C_SMBUS_BLOCK_DATA, &data))
-		return -1;
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_BLOCK_DATA, &data);
+	if (status)
+		return status;
 
 	memcpy(values, &data.block[1], data.block[0]);
 	return data.block[0];
 }
 EXPORT_SYMBOL(i2c_smbus_read_block_data);
 
+/**
+ * i2c_smbus_write_block_data - SMBus "block write" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @length: Size of data block; SMBus allows at most 32 bytes
+ * @values: Byte array which will be written.
+ *
+ * This executes the SMBus "block write" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_block_data(struct i2c_client *client, u8 command,
 			       u8 length, const u8 *values)
 {
@@ -1426,14 +1716,16 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command,
 				  u8 length, u8 *values)
 {
 	union i2c_smbus_data data;
+	int status;
 
 	if (length > I2C_SMBUS_BLOCK_MAX)
 		length = I2C_SMBUS_BLOCK_MAX;
 	data.block[0] = length;
-	if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-	                      I2C_SMBUS_READ,command,
-	                      I2C_SMBUS_I2C_BLOCK_DATA,&data))
-		return -1;
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_I2C_BLOCK_DATA, &data);
+	if (status < 0)
+		return status;
 
 	memcpy(values, &data.block[1], data.block[0]);
 	return data.block[0];
@@ -1474,6 +1766,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 	                        };
 	int i;
 	u8 partial_pec = 0;
+	int status;
 
 	msgbuf0[0] = command;
 	switch(size) {
@@ -1523,10 +1816,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 		} else {
 			msg[0].len = data->block[0] + 2;
 			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) {
-				dev_err(&adapter->dev, "smbus_access called with "
-				       "invalid block write size (%d)\n",
-				       data->block[0]);
-				return -1;
+				dev_err(&adapter->dev,
+					"Invalid block write size %d\n",
+					data->block[0]);
+				return -EINVAL;
 			}
 			for (i = 1; i < msg[0].len; i++)
 				msgbuf0[i] = data->block[i-1];
@@ -1536,10 +1829,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 		num = 2; /* Another special case */
 		read_write = I2C_SMBUS_READ;
 		if (data->block[0] > I2C_SMBUS_BLOCK_MAX) {
-			dev_err(&adapter->dev, "%s called with invalid "
-				"block proc call size (%d)\n", __func__,
+			dev_err(&adapter->dev,
+				"Invalid block write size %d\n",
 				data->block[0]);
-			return -1;
+			return -EINVAL;
 		}
 		msg[0].len = data->block[0] + 2;
 		for (i = 1; i < msg[0].len; i++)
@@ -1554,19 +1847,18 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 		} else {
 			msg[0].len = data->block[0] + 1;
 			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) {
-				dev_err(&adapter->dev, "i2c_smbus_xfer_emulated called with "
-				       "invalid block write size (%d)\n",
-				       data->block[0]);
-				return -1;
+				dev_err(&adapter->dev,
+					"Invalid block write size %d\n",
+					data->block[0]);
+				return -EINVAL;
 			}
 			for (i = 1; i <= data->block[0]; i++)
 				msgbuf0[i] = data->block[i];
 		}
 		break;
 	default:
-		dev_err(&adapter->dev, "smbus_access called with invalid size (%d)\n",
-		       size);
-		return -1;
+		dev_err(&adapter->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
 	}
 
 	i = ((flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK
@@ -1584,13 +1876,15 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 			msg[num-1].len++;
 	}
 
-	if (i2c_transfer(adapter, msg, num) < 0)
-		return -1;
+	status = i2c_transfer(adapter, msg, num);
+	if (status < 0)
+		return status;
 
 	/* Check PEC if last message is a read */
 	if (i && (msg[num-1].flags & I2C_M_RD)) {
-		if (i2c_smbus_check_pec(partial_pec, &msg[num-1]) < 0)
-			return -1;
+		status = i2c_smbus_check_pec(partial_pec, &msg[num-1]);
+		if (status < 0)
+			return status;
 	}
 
 	if (read_write == I2C_SMBUS_READ)
@@ -1618,9 +1912,21 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 	return 0;
 }
 
-
+/**
+ * i2c_smbus_xfer - execute SMBus protocol operations
+ * @adapter: Handle to I2C bus
+ * @addr: Address of SMBus slave on that bus
+ * @flags: I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC)
+ * @read_write: I2C_SMBUS_READ or I2C_SMBUS_WRITE
+ * @command: Byte interpreted by slave, for protocols which use such bytes
+ * @protocol: SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL
+ * @data: Data to be read or written
+ *
+ * This executes an SMBus protocol operation, and returns a negative
+ * errno code else zero on success.
+ */
 s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
-                   char read_write, u8 command, int size,
+		   char read_write, u8 command, int protocol,
                    union i2c_smbus_data * data)
 {
 	s32 res;
@@ -1630,11 +1936,11 @@ s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
 	if (adapter->algo->smbus_xfer) {
 		mutex_lock(&adapter->bus_lock);
 		res = adapter->algo->smbus_xfer(adapter,addr,flags,read_write,
-		                                command,size,data);
+						command, protocol, data);
 		mutex_unlock(&adapter->bus_lock);
 	} else
 		res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write,
-	                                      command,size,data);
+					      command, protocol, data);
 
 	return res;
 }
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 7cd3c32dd0fb..212573959a45 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -366,8 +366,7 @@ static noinline int i2cdev_ioctl_smbus(struct i2c_client *client,
 	return res;
 }
 
-static int i2cdev_ioctl(struct inode *inode, struct file *file,
-		unsigned int cmd, unsigned long arg)
+static long i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct i2c_client *client = (struct i2c_client *)file->private_data;
 	unsigned long funcs;
@@ -487,7 +486,7 @@ static const struct file_operations i2cdev_fops = {
 	.llseek		= no_llseek,
 	.read		= i2cdev_read,
 	.write		= i2cdev_write,
-	.ioctl		= i2cdev_ioctl,
+	.unlocked_ioctl	= i2cdev_ioctl,
 	.open		= i2cdev_open,
 	.release	= i2cdev_release,
 };
@@ -549,19 +548,12 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
 	return 0;
 }
 
-static int i2cdev_detach_client(struct i2c_client *client)
-{
-	return 0;
-}
-
 static struct i2c_driver i2cdev_driver = {
 	.driver = {
 		.name	= "dev_driver",
 	},
-	.id		= I2C_DRIVERID_I2CDEV,
 	.attach_adapter	= i2cdev_attach_adapter,
 	.detach_adapter	= i2cdev_detach_adapter,
-	.detach_client	= i2cdev_detach_client,
 };
 
 /* ------------------------------------------------------------------------- */
diff --git a/drivers/video/fb_ddc.c b/drivers/video/fb_ddc.c
index a0df63289b5f..0cf96eb8a60f 100644
--- a/drivers/video/fb_ddc.c
+++ b/drivers/video/fb_ddc.c
@@ -106,6 +106,7 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter)
 	algo_data->setsda(algo_data->data, 1);
 	algo_data->setscl(algo_data->data, 1);
 
+	adapter->class |= I2C_CLASS_DDC;
 	return edid;
 }
 
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index ca95f09d8b43..fcf9fadbf572 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -100,7 +100,8 @@ static int intelfb_gpio_getsda(void *data)
 
 static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
 				 struct intelfb_i2c_chan *chan,
-				 const u32 reg, const char *name)
+				 const u32 reg, const char *name,
+				 int class)
 {
 	int rc;
 
@@ -108,6 +109,7 @@ static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
 	chan->reg			= reg;
 	snprintf(chan->adapter.name, sizeof(chan->adapter.name),
 		 "intelfb %s", name);
+	chan->adapter.class		= class;
 	chan->adapter.owner		= THIS_MODULE;
 	chan->adapter.id		= I2C_HW_B_INTELFB;
 	chan->adapter.algo_data		= &chan->algo;
@@ -145,7 +147,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
 
 	/* setup the DDC bus for analog output */
 	intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, GPIOA,
-			      "CRTDDC_A");
+			      "CRTDDC_A", I2C_CLASS_DDC);
 	i++;
 
 	/* need to add the output busses for each device
@@ -159,9 +161,9 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
 	case INTEL_865G:
 		dinfo->output[i].type = INTELFB_OUTPUT_DVO;
 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus,
-				      GPIOD, "DVODDC_D");
+				      GPIOD, "DVODDC_D", I2C_CLASS_DDC);
 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-				      GPIOE, "DVOI2C_E");
+				      GPIOE, "DVOI2C_E", 0);
 		i++;
 		break;
 	case INTEL_915G:
@@ -174,7 +176,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
 		/* SDVO ports have a single control bus - 2 devices */
 		dinfo->output[i].type = INTELFB_OUTPUT_SDVO;
 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-				      GPIOE, "SDVOCTRL_E");
+				      GPIOE, "SDVOCTRL_E", 0);
 		/* TODO: initialize the SDVO */
 		/* I830SDVOInit(pScrn, i, DVOB); */
 		i++;
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 4baab7be58de..c14e3e2212b3 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -87,13 +87,7 @@ static int matroxfb_gpio_getscl(void* data) {
 	return (matroxfb_read_gpio(b->minfo) & b->mask.clock) ? 1 : 0;
 }
 
-static struct i2c_adapter matrox_i2c_adapter_template =
-{
-	.owner =	THIS_MODULE,
-	.id =		I2C_HW_B_G400,
-};
-
-static struct i2c_algo_bit_data matrox_i2c_algo_template =
+static const struct i2c_algo_bit_data matrox_i2c_algo_template =
 {
 	.setsda		= matroxfb_gpio_setsda,
 	.setscl		= matroxfb_gpio_setscl,
@@ -104,16 +98,19 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template =
 };
 
 static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo, 
-		unsigned int data, unsigned int clock, const char* name) {
+		unsigned int data, unsigned int clock, const char *name,
+		int class)
+{
 	int err;
 
 	b->minfo = minfo;
 	b->mask.data = data;
 	b->mask.clock = clock;
-	b->adapter = matrox_i2c_adapter_template;
+	b->adapter.owner = THIS_MODULE;
 	snprintf(b->adapter.name, sizeof(b->adapter.name), name,
 		minfo->fbcon.node);
 	i2c_set_adapdata(&b->adapter, b);
+	b->adapter.class = class;
 	b->adapter.algo_data = &b->bac;
 	b->adapter.dev.parent = &ACCESS_FBINFO(pcidev)->dev;
 	b->bac = matrox_i2c_algo_template;
@@ -159,24 +156,42 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) {
 	switch (ACCESS_FBINFO(chip)) {
 		case MGA_2064:
 		case MGA_2164:
-			err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1B_DATA, DDC1B_CLK, "DDC:fb%u #0");
+			err = i2c_bus_reg(&m2info->ddc1, minfo,
+					  DDC1B_DATA, DDC1B_CLK,
+					  "DDC:fb%u #0", I2C_CLASS_DDC);
 			break;
 		default:
-			err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1_DATA, DDC1_CLK, "DDC:fb%u #0");
+			err = i2c_bus_reg(&m2info->ddc1, minfo,
+					  DDC1_DATA, DDC1_CLK,
+					  "DDC:fb%u #0", I2C_CLASS_DDC);
 			break;
 	}
 	if (err)
 		goto fail_ddc1;
 	if (ACCESS_FBINFO(devflags.dualhead)) {
-		err = i2c_bus_reg(&m2info->ddc2, minfo, DDC2_DATA, DDC2_CLK, "DDC:fb%u #1");
+		err = i2c_bus_reg(&m2info->ddc2, minfo,
+				  DDC2_DATA, DDC2_CLK,
+				  "DDC:fb%u #1", I2C_CLASS_DDC);
 		if (err == -ENODEV) {
 			printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n");
 		} else if (err)
 			printk(KERN_INFO "i2c-matroxfb: Could not register secondary output i2c bus. Continuing anyway.\n");
 		/* Register maven bus even on G450/G550 */
-		err = i2c_bus_reg(&m2info->maven, minfo, MAT_DATA, MAT_CLK, "MAVEN:fb%u");
+		err = i2c_bus_reg(&m2info->maven, minfo,
+				  MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0);
 		if (err)
 			printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n");
+		else {
+			struct i2c_board_info maven_info = {
+				I2C_BOARD_INFO("maven", 0x1b),
+			};
+			unsigned short const addr_list[2] = {
+				0x1b, I2C_CLIENT_END
+			};
+
+			i2c_new_probed_device(&m2info->maven.adapter,
+					      &maven_info, addr_list);
+		}
 	}
 	return m2info;
 fail_ddc1:;
diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index 89da27bd5c49..6d31eb4b674e 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -19,8 +19,6 @@
 #include <linux/matroxfb.h>
 #include <asm/div64.h>
 
-#define MAVEN_I2CID	(0x1B)
-
 #define MGATVO_B	1
 #define MGATVO_C	2
 
@@ -128,7 +126,7 @@ static int get_ctrl_id(__u32 v4l2_id) {
 
 struct maven_data {
 	struct matrox_fb_info*		primary_head;
-	struct i2c_client		client;
+	struct i2c_client		*client;
 	int				version;
 };
 
@@ -974,7 +972,7 @@ static inline int maven_compute_timming(struct maven_data* md,
 
 static int maven_program_timming(struct maven_data* md,
 		const struct mavenregs* m) {
-	struct i2c_client* c = &md->client;
+	struct i2c_client *c = md->client;
 
 	if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) {
 		LR(0x80);
@@ -1011,7 +1009,7 @@ static int maven_program_timming(struct maven_data* md,
 }
 
 static inline int maven_resync(struct maven_data* md) {
-	struct i2c_client* c = &md->client;
+	struct i2c_client *c = md->client;
 	maven_set_reg(c, 0x95, 0x20);	/* start whole thing */
 	return 0;
 }
@@ -1069,48 +1067,48 @@ static int maven_set_control (struct maven_data* md,
 		  maven_compute_bwlevel(md, &blacklevel, &whitelevel);
 		  blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8);
 		  whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8);
-		  maven_set_reg_pair(&md->client, 0x0e, blacklevel);
-		  maven_set_reg_pair(&md->client, 0x1e, whitelevel);
+		  maven_set_reg_pair(md->client, 0x0e, blacklevel);
+		  maven_set_reg_pair(md->client, 0x1e, whitelevel);
 		}
 		break;
 		case V4L2_CID_SATURATION:
 		{
-		  maven_set_reg(&md->client, 0x20, p->value);
-		  maven_set_reg(&md->client, 0x22, p->value);
+		  maven_set_reg(md->client, 0x20, p->value);
+		  maven_set_reg(md->client, 0x22, p->value);
 		}
 		break;
 		case V4L2_CID_HUE:
 		{
-		  maven_set_reg(&md->client, 0x25, p->value);
+		  maven_set_reg(md->client, 0x25, p->value);
 		}
 		break;
 		case V4L2_CID_GAMMA:
 		{
 		  const struct maven_gamma* g;
 		  g = maven_compute_gamma(md);
-		  maven_set_reg(&md->client, 0x83, g->reg83);
-		  maven_set_reg(&md->client, 0x84, g->reg84);
-		  maven_set_reg(&md->client, 0x85, g->reg85);
-		  maven_set_reg(&md->client, 0x86, g->reg86);
-		  maven_set_reg(&md->client, 0x87, g->reg87);
-		  maven_set_reg(&md->client, 0x88, g->reg88);
-		  maven_set_reg(&md->client, 0x89, g->reg89);
-		  maven_set_reg(&md->client, 0x8a, g->reg8a);
-		  maven_set_reg(&md->client, 0x8b, g->reg8b);
+		  maven_set_reg(md->client, 0x83, g->reg83);
+		  maven_set_reg(md->client, 0x84, g->reg84);
+		  maven_set_reg(md->client, 0x85, g->reg85);
+		  maven_set_reg(md->client, 0x86, g->reg86);
+		  maven_set_reg(md->client, 0x87, g->reg87);
+		  maven_set_reg(md->client, 0x88, g->reg88);
+		  maven_set_reg(md->client, 0x89, g->reg89);
+		  maven_set_reg(md->client, 0x8a, g->reg8a);
+		  maven_set_reg(md->client, 0x8b, g->reg8b);
 		}
 		break;
 		case MATROXFB_CID_TESTOUT:
 		{
 			unsigned char val 
-			  = maven_get_reg(&md->client,0x8d);
+			  = maven_get_reg(md->client, 0x8d);
 			if (p->value) val |= 0x10;
 			else          val &= ~0x10;
-			maven_set_reg(&md->client, 0x8d, val);
+			maven_set_reg(md->client, 0x8d, val);
 		}
 		break;
 		case MATROXFB_CID_DEFLICKER:
 		{
-		  maven_set_reg(&md->client, 0x93, maven_compute_deflicker(md));
+		  maven_set_reg(md->client, 0x93, maven_compute_deflicker(md));
 		}
 		break;
 	}
@@ -1189,6 +1187,7 @@ static int maven_init_client(struct i2c_client* clnt) {
 	MINFO_FROM(container_of(clnt->adapter, struct i2c_bit_adapter, adapter)->minfo);
 
 	md->primary_head = MINFO;
+	md->client = clnt;
 	down_write(&ACCESS_FBINFO(altout.lock));
 	ACCESS_FBINFO(outputs[1]).output = &maven_altout;
 	ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src;
@@ -1232,14 +1231,11 @@ static int maven_shutdown_client(struct i2c_client* clnt) {
 	return 0;
 }
 
-static const unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END };
-I2C_CLIENT_INSMOD;
-
-static struct i2c_driver maven_driver;
-
-static int maven_detect_client(struct i2c_adapter* adapter, int address, int kind) {
-	int err = 0;
-	struct i2c_client* new_client;
+static int maven_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int err = -ENODEV;
 	struct maven_data* data;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
@@ -1250,50 +1246,37 @@ static int maven_detect_client(struct i2c_adapter* adapter, int address, int kin
 		err = -ENOMEM;
 		goto ERROR0;
 	}
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->adapter = adapter;
-	new_client->driver = &maven_driver;
-	new_client->flags = 0;
-	strlcpy(new_client->name, "maven", I2C_NAME_SIZE);
-	if ((err = i2c_attach_client(new_client)))
-		goto ERROR3;
-	err = maven_init_client(new_client);
+	i2c_set_clientdata(client, data);
+	err = maven_init_client(client);
 	if (err)
 		goto ERROR4;
 	return 0;
 ERROR4:;
-	i2c_detach_client(new_client);
-ERROR3:;
-	kfree(new_client);
+	kfree(data);
 ERROR0:;
 	return err;
 }
 
-static int maven_attach_adapter(struct i2c_adapter* adapter) {
-	if (adapter->id == I2C_HW_B_G400)
-		return i2c_probe(adapter, &addr_data, &maven_detect_client);
-	return 0;
-}
-
-static int maven_detach_client(struct i2c_client* client) {
-	int err;
-
-	if ((err = i2c_detach_client(client)))
-		return err;
+static int maven_remove(struct i2c_client *client)
+{
 	maven_shutdown_client(client);
 	kfree(i2c_get_clientdata(client));
 	return 0;
 }
 
+static struct i2c_device_id maven_id[] = {
+	{ "maven", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, maven_id);
+
 static struct i2c_driver maven_driver={
 	.driver = {
 		.name	= "maven",
 	},
-	.id		= I2C_DRIVERID_MGATVO,
-	.attach_adapter	= maven_attach_adapter,
-	.detach_client	= maven_detach_client,
+	.probe		= maven_probe,
+	.remove		= maven_remove,
+	.id_table	= maven_id,
 };
 
 static int __init matroxfb_maven_init(void)
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c
index 0fd5820d5c61..74c199dd41ec 100644
--- a/drivers/w1/masters/ds2482.c
+++ b/drivers/w1/masters/ds2482.c
@@ -94,21 +94,31 @@ static const u8 ds2482_chan_rd[8] =
 #define DS2482_REG_STS_1WB		0x01
 
 
-static int ds2482_attach_adapter(struct i2c_adapter *adapter);
-static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind);
-static int ds2482_detach_client(struct i2c_client *client);
+static int ds2482_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int ds2482_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int ds2482_remove(struct i2c_client *client);
 
 
 /**
  * Driver data (common to all clients)
  */
+static struct i2c_device_id ds2482_id[] = {
+	{ "ds2482", 0 },
+	{ }
+};
+
 static struct i2c_driver ds2482_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
 		.name	= "ds2482",
 	},
-	.attach_adapter	= ds2482_attach_adapter,
-	.detach_client	= ds2482_detach_client,
+	.probe		= ds2482_probe,
+	.remove		= ds2482_remove,
+	.id_table	= ds2482_id,
+	.detect		= ds2482_detect,
+	.address_data	= &addr_data,
 };
 
 /*
@@ -124,7 +134,7 @@ struct ds2482_w1_chan {
 };
 
 struct ds2482_data {
-	struct i2c_client	client;
+	struct i2c_client	*client;
 	struct mutex		access_lock;
 
 	/* 1-wire interface(s) */
@@ -147,7 +157,7 @@ struct ds2482_data {
 static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr)
 {
 	if (pdev->read_prt != read_ptr) {
-		if (i2c_smbus_write_byte_data(&pdev->client,
+		if (i2c_smbus_write_byte_data(pdev->client,
 					      DS2482_CMD_SET_READ_PTR,
 					      read_ptr) < 0)
 			return -1;
@@ -167,7 +177,7 @@ static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr)
  */
 static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd)
 {
-	if (i2c_smbus_write_byte(&pdev->client, cmd) < 0)
+	if (i2c_smbus_write_byte(pdev->client, cmd) < 0)
 		return -1;
 
 	pdev->read_prt = DS2482_PTR_CODE_STATUS;
@@ -187,7 +197,7 @@ static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd)
 static inline int ds2482_send_cmd_data(struct ds2482_data *pdev,
 				       u8 cmd, u8 byte)
 {
-	if (i2c_smbus_write_byte_data(&pdev->client, cmd, byte) < 0)
+	if (i2c_smbus_write_byte_data(pdev->client, cmd, byte) < 0)
 		return -1;
 
 	/* all cmds leave in STATUS, except CONFIG */
@@ -216,7 +226,7 @@ static int ds2482_wait_1wire_idle(struct ds2482_data *pdev)
 
 	if (!ds2482_select_register(pdev, DS2482_PTR_CODE_STATUS)) {
 		do {
-			temp = i2c_smbus_read_byte(&pdev->client);
+			temp = i2c_smbus_read_byte(pdev->client);
 		} while ((temp >= 0) && (temp & DS2482_REG_STS_1WB) &&
 			 (++retries < DS2482_WAIT_IDLE_TIMEOUT));
 	}
@@ -238,13 +248,13 @@ static int ds2482_wait_1wire_idle(struct ds2482_data *pdev)
  */
 static int ds2482_set_channel(struct ds2482_data *pdev, u8 channel)
 {
-	if (i2c_smbus_write_byte_data(&pdev->client, DS2482_CMD_CHANNEL_SELECT,
+	if (i2c_smbus_write_byte_data(pdev->client, DS2482_CMD_CHANNEL_SELECT,
 				      ds2482_chan_wr[channel]) < 0)
 		return -1;
 
 	pdev->read_prt = DS2482_PTR_CODE_CHANNEL;
 	pdev->channel = -1;
-	if (i2c_smbus_read_byte(&pdev->client) == ds2482_chan_rd[channel]) {
+	if (i2c_smbus_read_byte(pdev->client) == ds2482_chan_rd[channel]) {
 		pdev->channel = channel;
 		return 0;
 	}
@@ -368,7 +378,7 @@ static u8 ds2482_w1_read_byte(void *data)
 	ds2482_select_register(pdev, DS2482_PTR_CODE_DATA);
 
 	/* Read the data byte */
-	result = i2c_smbus_read_byte(&pdev->client);
+	result = i2c_smbus_read_byte(pdev->client);
 
 	mutex_unlock(&pdev->access_lock);
 
@@ -415,47 +425,38 @@ static u8 ds2482_w1_reset_bus(void *data)
 }
 
 
-/**
- * Called to see if the device exists on an i2c bus.
- */
-static int ds2482_attach_adapter(struct i2c_adapter *adapter)
+static int ds2482_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
 {
-	return i2c_probe(adapter, &addr_data, ds2482_detect);
-}
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_WRITE_BYTE_DATA |
+				     I2C_FUNC_SMBUS_BYTE))
+		return -ENODEV;
 
+	strlcpy(info->type, "ds2482", I2C_NAME_SIZE);
 
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
-static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
+	return 0;
+}
+
+static int ds2482_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
 {
 	struct ds2482_data *data;
-	struct i2c_client  *new_client;
-	int err = 0;
+	int err = -ENODEV;
 	int temp1;
 	int idx;
 
-	if (!i2c_check_functionality(adapter,
-				     I2C_FUNC_SMBUS_WRITE_BYTE_DATA |
-				     I2C_FUNC_SMBUS_BYTE))
-		goto exit;
-
 	if (!(data = kzalloc(sizeof(struct ds2482_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
 
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	new_client->driver = &ds2482_driver;
-	new_client->adapter = adapter;
+	data->client = client;
+	i2c_set_clientdata(client, data);
 
 	/* Reset the device (sets the read_ptr to status) */
 	if (ds2482_send_cmd(data, DS2482_CMD_RESET) < 0) {
-		dev_dbg(&adapter->dev, "DS2482 reset failed at 0x%02x.\n",
-			address);
+		dev_warn(&client->dev, "DS2482 reset failed.\n");
 		goto exit_free;
 	}
 
@@ -463,10 +464,10 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
 	ndelay(525);
 
 	/* Read the status byte - only reset bit and line should be set */
-	temp1 = i2c_smbus_read_byte(new_client);
+	temp1 = i2c_smbus_read_byte(client);
 	if (temp1 != (DS2482_REG_STS_LL | DS2482_REG_STS_RST)) {
-		dev_dbg(&adapter->dev, "DS2482 (0x%02x) reset status "
-			"0x%02X - not a DS2482\n", address, temp1);
+		dev_warn(&client->dev, "DS2482 reset status "
+			 "0x%02X - not a DS2482\n", temp1);
 		goto exit_free;
 	}
 
@@ -478,16 +479,8 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
 	/* Set all config items to 0 (off) */
 	ds2482_send_cmd_data(data, DS2482_CMD_WRITE_CONFIG, 0xF0);
 
-	/* We can fill in the remaining client fields */
-	snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00",
-		 data->w1_count);
-
 	mutex_init(&data->access_lock);
 
-	/* Tell the I2C layer a new client has arrived */
-	if ((err = i2c_attach_client(new_client)))
-		goto exit_free;
-
 	/* Register 1-wire interface(s) */
 	for (idx = 0; idx < data->w1_count; idx++) {
 		data->w1_ch[idx].pdev = data;
@@ -511,8 +504,6 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
 	return 0;
 
 exit_w1_remove:
-	i2c_detach_client(new_client);
-
 	for (idx = 0; idx < data->w1_count; idx++) {
 		if (data->w1_ch[idx].pdev != NULL)
 			w1_remove_master_device(&data->w1_ch[idx].w1_bm);
@@ -523,10 +514,10 @@ exit:
 	return err;
 }
 
-static int ds2482_detach_client(struct i2c_client *client)
+static int ds2482_remove(struct i2c_client *client)
 {
 	struct ds2482_data   *data = i2c_get_clientdata(client);
-	int err, idx;
+	int idx;
 
 	/* Unregister the 1-wire bridge(s) */
 	for (idx = 0; idx < data->w1_count; idx++) {
@@ -534,13 +525,6 @@ static int ds2482_detach_client(struct i2c_client *client)
 			w1_remove_master_device(&data->w1_ch[idx].w1_bm);
 	}
 
-	/* Detach the i2c device */
-	if ((err = i2c_detach_client(client))) {
-		dev_err(&client->dev,
-			"Deregistration failed, client not detached.\n");
-		return err;
-	}
-
 	/* Free the memory */
 	kfree(data);
 	return 0;