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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-23 14:56:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-23 14:56:23 -0800
commite0fbd25bb37e7bb1f5ad9c9f7e5fc89152aec87e (patch)
tree03da18454a18ebbda8048f36b886b4b21625604f /drivers/input/keyboard
parent69aea9d2843669387d100e353b5113d1adc9502f (diff)
parent1bff77f41a805b16b5355497c217656711601282 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: "Mostly existing driver fixes plus a new driver for game controllers directly connected to Nintendo 64, and an enhancement for keyboards driven by Chrome OS EC to communicate layout of the top row to userspace" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (47 commits) Input: st1232 - fix NORMAL vs. IDLE state handling Input: aiptek - convert sysfs sprintf/snprintf family to sysfs_emit Input: alps - fix spelling of "positive" ARM: dts: cros-ec-keyboard: Use keymap macros dt-bindings: input: Fix the keymap for LOCK key dt-bindings: input: Create macros for cros-ec keymap Input: cros-ec-keyb - expose function row physical map to userspace dt-bindings: input: cros-ec-keyb: Add a new property describing top row Input: applespi - fix occasional crc errors under load. Input: applespi - don't wait for responses to commands indefinitely. Input: st1232 - add IDLE state as ready condition Input: zinitix - fix return type of zinitix_init_touch() Input: i8042 - add ASUS Zenbook Flip to noselftest list Input: add missing dependencies on CONFIG_HAS_IOMEM Input: joydev - prevent potential read overflow in ioctl Input: elo - fix an error code in elo_connect() Input: xpad - add support for PowerA Enhanced Wired Controller for Xbox Series X|S Input: sur40 - fix an error code in sur40_probe() Input: elants_i2c - detect enum overflow Input: zinitix - remove unneeded semicolon ...
Diffstat (limited to 'drivers/input/keyboard')
-rw-r--r--drivers/input/keyboard/Kconfig6
-rw-r--r--drivers/input/keyboard/applespi.c23
-rw-r--r--drivers/input/keyboard/cros_ec_keyb.c79
-rw-r--r--drivers/input/keyboard/omap4-keypad.c302
4 files changed, 278 insertions, 132 deletions
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 2b321c17054a..32d15809ae58 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -446,7 +446,7 @@ config KEYBOARD_MPR121
config KEYBOARD_SNVS_PWRKEY
tristate "IMX SNVS Power Key Driver"
- depends on ARCH_MXC || COMPILE_TEST
+ depends on ARCH_MXC || (COMPILE_TEST && HAS_IOMEM)
depends on OF
help
This is the snvs powerkey driver for the Freescale i.MX application
@@ -685,7 +685,7 @@ config KEYBOARD_OMAP
config KEYBOARD_OMAP4
tristate "TI OMAP4+ keypad support"
- depends on OF || ARCH_OMAP2PLUS
+ depends on (OF && HAS_IOMEM) || ARCH_OMAP2PLUS
select INPUT_MATRIXKMAP
help
Say Y here if you want to use the OMAP4+ keypad.
@@ -773,7 +773,7 @@ config KEYBOARD_CAP11XX
config KEYBOARD_BCM
tristate "Broadcom keypad driver"
- depends on OF && HAVE_CLK
+ depends on OF && HAVE_CLK && HAS_IOMEM
select INPUT_MATRIXKMAP
default ARCH_BCM_CYGNUS
help
diff --git a/drivers/input/keyboard/applespi.c b/drivers/input/keyboard/applespi.c
index d22223154177..eda1b23002b5 100644
--- a/drivers/input/keyboard/applespi.c
+++ b/drivers/input/keyboard/applespi.c
@@ -48,6 +48,7 @@
#include <linux/efi.h>
#include <linux/input.h>
#include <linux/input/mt.h>
+#include <linux/ktime.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/spinlock.h>
@@ -409,7 +410,7 @@ struct applespi_data {
unsigned int cmd_msg_cntr;
/* lock to protect the above parameters and flags below */
spinlock_t cmd_msg_lock;
- bool cmd_msg_queued;
+ ktime_t cmd_msg_queued;
enum applespi_evt_type cmd_evt_type;
struct led_classdev backlight_info;
@@ -729,7 +730,7 @@ static void applespi_msg_complete(struct applespi_data *applespi,
wake_up_all(&applespi->drain_complete);
if (is_write_msg) {
- applespi->cmd_msg_queued = false;
+ applespi->cmd_msg_queued = 0;
applespi_send_cmd_msg(applespi);
}
@@ -748,6 +749,8 @@ static void applespi_async_write_complete(void *context)
applespi->tx_status,
APPLESPI_STATUS_SIZE);
+ udelay(SPI_RW_CHG_DELAY_US);
+
if (!applespi_check_write_status(applespi, applespi->wr_m.status)) {
/*
* If we got an error, we presumably won't get the expected
@@ -771,8 +774,16 @@ static int applespi_send_cmd_msg(struct applespi_data *applespi)
return 0;
/* check whether send is in progress */
- if (applespi->cmd_msg_queued)
- return 0;
+ if (applespi->cmd_msg_queued) {
+ if (ktime_ms_delta(ktime_get(), applespi->cmd_msg_queued) < 1000)
+ return 0;
+
+ dev_warn(&applespi->spi->dev, "Command %d timed out\n",
+ applespi->cmd_evt_type);
+
+ applespi->cmd_msg_queued = 0;
+ applespi->write_active = false;
+ }
/* set up packet */
memset(packet, 0, APPLESPI_PACKET_SIZE);
@@ -869,7 +880,7 @@ static int applespi_send_cmd_msg(struct applespi_data *applespi)
return sts;
}
- applespi->cmd_msg_queued = true;
+ applespi->cmd_msg_queued = ktime_get_coarse();
applespi->write_active = true;
return 0;
@@ -1921,7 +1932,7 @@ static int __maybe_unused applespi_resume(struct device *dev)
applespi->drain = false;
applespi->have_cl_led_on = false;
applespi->have_bl_level = 0;
- applespi->cmd_msg_queued = false;
+ applespi->cmd_msg_queued = 0;
applespi->read_active = false;
applespi->write_active = false;
diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index b379ed762878..38457d9641bd 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -27,6 +27,8 @@
#include <asm/unaligned.h>
+#define MAX_NUM_TOP_ROW_KEYS 15
+
/**
* struct cros_ec_keyb - Structure representing EC keyboard device
*
@@ -42,6 +44,9 @@
* @idev: The input device for the matrix keys.
* @bs_idev: The input device for non-matrix buttons and switches (or NULL).
* @notifier: interrupt event notifier for transport devices
+ * @function_row_physmap: An array of the encoded rows/columns for the top
+ * row function keys, in an order from left to right
+ * @num_function_row_keys: The number of top row keys in a custom keyboard
*/
struct cros_ec_keyb {
unsigned int rows;
@@ -58,6 +63,9 @@ struct cros_ec_keyb {
struct input_dev *idev;
struct input_dev *bs_idev;
struct notifier_block notifier;
+
+ u16 function_row_physmap[MAX_NUM_TOP_ROW_KEYS];
+ size_t num_function_row_keys;
};
/**
@@ -527,6 +535,11 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
struct input_dev *idev;
const char *phys;
int err;
+ struct property *prop;
+ const __be32 *p;
+ u16 *physmap;
+ u32 key_pos;
+ int row, col;
err = matrix_keypad_parse_properties(dev, &ckdev->rows, &ckdev->cols);
if (err)
@@ -578,6 +591,21 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
ckdev->idev = idev;
cros_ec_keyb_compute_valid_keys(ckdev);
+ physmap = ckdev->function_row_physmap;
+ of_property_for_each_u32(dev->of_node, "function-row-physmap",
+ prop, p, key_pos) {
+ if (ckdev->num_function_row_keys == MAX_NUM_TOP_ROW_KEYS) {
+ dev_warn(dev, "Only support up to %d top row keys\n",
+ MAX_NUM_TOP_ROW_KEYS);
+ break;
+ }
+ row = KEY_ROW(key_pos);
+ col = KEY_COL(key_pos);
+ *physmap = MATRIX_SCAN_CODE(row, col, ckdev->row_shift);
+ physmap++;
+ ckdev->num_function_row_keys++;
+ }
+
err = input_register_device(ckdev->idev);
if (err) {
dev_err(dev, "cannot register input device\n");
@@ -587,6 +615,51 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
return 0;
}
+static ssize_t function_row_physmap_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ ssize_t size = 0;
+ int i;
+ struct cros_ec_keyb *ckdev = dev_get_drvdata(dev);
+ u16 *physmap = ckdev->function_row_physmap;
+
+ for (i = 0; i < ckdev->num_function_row_keys; i++)
+ size += scnprintf(buf + size, PAGE_SIZE - size,
+ "%s%02X", size ? " " : "", physmap[i]);
+ if (size)
+ size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
+
+ return size;
+}
+
+static DEVICE_ATTR_RO(function_row_physmap);
+
+static struct attribute *cros_ec_keyb_attrs[] = {
+ &dev_attr_function_row_physmap.attr,
+ NULL,
+};
+
+static umode_t cros_ec_keyb_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct cros_ec_keyb *ckdev = dev_get_drvdata(dev);
+
+ if (attr == &dev_attr_function_row_physmap.attr &&
+ !ckdev->num_function_row_keys)
+ return 0;
+
+ return attr->mode;
+}
+
+static const struct attribute_group cros_ec_keyb_attr_group = {
+ .is_visible = cros_ec_keyb_attr_is_visible,
+ .attrs = cros_ec_keyb_attrs,
+};
+
+
static int cros_ec_keyb_probe(struct platform_device *pdev)
{
struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
@@ -617,6 +690,12 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
return err;
}
+ err = devm_device_add_group(dev, &cros_ec_keyb_attr_group);
+ if (err) {
+ dev_err(dev, "failed to create attributes. err=%d\n", err);
+ return err;
+ }
+
ckdev->notifier.notifier_call = cros_ec_keyb_work;
err = blocking_notifier_chain_register(&ckdev->ec->event_notifier,
&ckdev->notifier);
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index b17ac2a295b9..43375b38ee59 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -60,6 +60,8 @@
((((dbms) * 1000) / ((1 << ((ptv) + 1)) * (1000000 / 32768))) - 1)
#define OMAP4_VAL_DEBOUNCINGTIME_16MS \
OMAP4_KEYPAD_DEBOUNCINGTIME_MS(16, OMAP4_KEYPAD_PTV_DIV_128)
+#define OMAP4_KEYPAD_AUTOIDLE_MS 50 /* Approximate measured time */
+#define OMAP4_KEYPAD_IDLE_CHECK_MS (OMAP4_KEYPAD_AUTOIDLE_MS / 2)
enum {
KBD_REVISION_OMAP4 = 0,
@@ -71,6 +73,7 @@ struct omap4_keypad {
void __iomem *base;
unsigned int irq;
+ struct mutex lock; /* for key scan */
unsigned int rows;
unsigned int cols;
@@ -78,7 +81,7 @@ struct omap4_keypad {
u32 irqreg_offset;
unsigned int row_shift;
bool no_autorepeat;
- unsigned char key_state[8];
+ u64 keys;
unsigned short *keymap;
};
@@ -107,6 +110,55 @@ static void kbd_write_irqreg(struct omap4_keypad *keypad_data,
keypad_data->base + keypad_data->irqreg_offset + offset);
}
+static int omap4_keypad_report_keys(struct omap4_keypad *keypad_data,
+ u64 keys, bool down)
+{
+ struct input_dev *input_dev = keypad_data->input;
+ unsigned int col, row, code;
+ DECLARE_BITMAP(mask, 64);
+ unsigned long bit;
+ int events = 0;
+
+ bitmap_from_u64(mask, keys);
+
+ for_each_set_bit(bit, mask, keypad_data->rows * BITS_PER_BYTE) {
+ row = bit / BITS_PER_BYTE;
+ col = bit % BITS_PER_BYTE;
+ code = MATRIX_SCAN_CODE(row, col, keypad_data->row_shift);
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, keypad_data->keymap[code], down);
+
+ events++;
+ }
+
+ if (events)
+ input_sync(input_dev);
+
+ return events;
+}
+
+static void omap4_keypad_scan_keys(struct omap4_keypad *keypad_data, u64 keys)
+{
+ u64 changed;
+
+ mutex_lock(&keypad_data->lock);
+
+ changed = keys ^ keypad_data->keys;
+
+ /*
+ * Report key up events separately and first. This matters in case we
+ * lost key-up interrupt and just now catching up.
+ */
+ omap4_keypad_report_keys(keypad_data, changed & ~keys, false);
+
+ /* Report key down events */
+ omap4_keypad_report_keys(keypad_data, changed & keys, true);
+
+ keypad_data->keys = keys;
+
+ mutex_unlock(&keypad_data->lock);
+}
/* Interrupt handlers */
static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
@@ -122,48 +174,44 @@ static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
{
struct omap4_keypad *keypad_data = dev_id;
- struct input_dev *input_dev = keypad_data->input;
- unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
- unsigned int col, row, code, changed;
- u32 *new_state = (u32 *) key_state;
-
- *new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
- *(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
-
- for (row = 0; row < keypad_data->rows; row++) {
- changed = key_state[row] ^ keypad_data->key_state[row];
- if (!changed)
- continue;
-
- for (col = 0; col < keypad_data->cols; col++) {
- if (changed & (1 << col)) {
- code = MATRIX_SCAN_CODE(row, col,
- keypad_data->row_shift);
- input_event(input_dev, EV_MSC, MSC_SCAN, code);
- input_report_key(input_dev,
- keypad_data->keymap[code],
- key_state[row] & (1 << col));
- }
- }
+ struct device *dev = keypad_data->input->dev.parent;
+ u32 low, high;
+ int error;
+ u64 keys;
+
+ error = pm_runtime_get_sync(dev);
+ if (error < 0) {
+ pm_runtime_put_noidle(dev);
+ return IRQ_NONE;
}
- input_sync(input_dev);
+ low = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
+ high = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
+ keys = low | (u64)high << 32;
- memcpy(keypad_data->key_state, key_state,
- sizeof(keypad_data->key_state));
+ omap4_keypad_scan_keys(keypad_data, keys);
/* clear pending interrupts */
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+
return IRQ_HANDLED;
}
static int omap4_keypad_open(struct input_dev *input)
{
struct omap4_keypad *keypad_data = input_get_drvdata(input);
+ struct device *dev = input->dev.parent;
+ int error;
- pm_runtime_get_sync(input->dev.parent);
+ error = pm_runtime_get_sync(dev);
+ if (error < 0) {
+ pm_runtime_put_noidle(dev);
+ return error;
+ }
disable_irq(keypad_data->irq);
@@ -176,13 +224,15 @@ static int omap4_keypad_open(struct input_dev *input)
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
- OMAP4_DEF_IRQENABLE_EVENTEN |
- OMAP4_DEF_IRQENABLE_LONGKEY);
+ OMAP4_DEF_IRQENABLE_EVENTEN);
kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,
- OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA);
+ OMAP4_DEF_WUP_EVENT_ENA);
enable_irq(keypad_data->irq);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+
return 0;
}
@@ -200,14 +250,20 @@ static void omap4_keypad_stop(struct omap4_keypad *keypad_data)
static void omap4_keypad_close(struct input_dev *input)
{
- struct omap4_keypad *keypad_data;
+ struct omap4_keypad *keypad_data = input_get_drvdata(input);
+ struct device *dev = input->dev.parent;
+ int error;
+
+ error = pm_runtime_get_sync(dev);
+ if (error < 0)
+ pm_runtime_put_noidle(dev);
- keypad_data = input_get_drvdata(input);
disable_irq(keypad_data->irq);
omap4_keypad_stop(keypad_data);
enable_irq(keypad_data->irq);
- pm_runtime_put_sync(input->dev.parent);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
}
static int omap4_keypad_parse_dt(struct device *dev,
@@ -252,8 +308,41 @@ static int omap4_keypad_check_revision(struct device *dev,
return 0;
}
+/*
+ * Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed".
+ * Interrupt may not happen for key-up events. We must clear stuck
+ * key-up events after the keyboard hardware has auto-idled.
+ */
+static int __maybe_unused omap4_keypad_runtime_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+ u32 active;
+
+ active = kbd_readl(keypad_data, OMAP4_KBD_STATEMACHINE);
+ if (active) {
+ pm_runtime_mark_last_busy(dev);
+ return -EBUSY;
+ }
+
+ omap4_keypad_scan_keys(keypad_data, 0);
+
+ return 0;
+}
+
+static const struct dev_pm_ops omap4_keypad_pm_ops = {
+ SET_RUNTIME_PM_OPS(omap4_keypad_runtime_suspend, NULL, NULL)
+};
+
+static void omap4_disable_pm(void *d)
+{
+ pm_runtime_dont_use_autosuspend(d);
+ pm_runtime_disable(d);
+}
+
static int omap4_keypad_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct omap4_keypad *keypad_data;
struct input_dev *input_dev;
struct resource *res;
@@ -271,63 +360,62 @@ static int omap4_keypad_probe(struct platform_device *pdev)
if (irq < 0)
return irq;
- keypad_data = kzalloc(sizeof(struct omap4_keypad), GFP_KERNEL);
+ keypad_data = devm_kzalloc(dev, sizeof(*keypad_data), GFP_KERNEL);
if (!keypad_data) {
- dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
+ dev_err(dev, "keypad_data memory allocation failed\n");
return -ENOMEM;
}
keypad_data->irq = irq;
+ mutex_init(&keypad_data->lock);
+ platform_set_drvdata(pdev, keypad_data);
- error = omap4_keypad_parse_dt(&pdev->dev, keypad_data);
+ error = omap4_keypad_parse_dt(dev, keypad_data);
if (error)
- goto err_free_keypad;
+ return error;
- res = request_mem_region(res->start, resource_size(res), pdev->name);
- if (!res) {
- dev_err(&pdev->dev, "can't request mem region\n");
- error = -EBUSY;
- goto err_free_keypad;
- }
+ keypad_data->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(keypad_data->base))
+ return PTR_ERR(keypad_data->base);
- keypad_data->base = ioremap(res->start, resource_size(res));
- if (!keypad_data->base) {
- dev_err(&pdev->dev, "can't ioremap mem resource\n");
- error = -ENOMEM;
- goto err_release_mem;
- }
+ pm_runtime_use_autosuspend(dev);
+ pm_runtime_set_autosuspend_delay(dev, OMAP4_KEYPAD_IDLE_CHECK_MS);
+ pm_runtime_enable(dev);
- pm_runtime_enable(&pdev->dev);
+ error = devm_add_action_or_reset(dev, omap4_disable_pm, dev);
+ if (error) {
+ dev_err(dev, "unable to register cleanup action\n");
+ return error;
+ }
/*
* Enable clocks for the keypad module so that we can read
* revision register.
*/
- error = pm_runtime_get_sync(&pdev->dev);
+ error = pm_runtime_get_sync(dev);
if (error) {
- dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n");
- pm_runtime_put_noidle(&pdev->dev);
- } else {
- error = omap4_keypad_check_revision(&pdev->dev,
- keypad_data);
- if (!error) {
- /* Ensure device does not raise interrupts */
- omap4_keypad_stop(keypad_data);
- }
- pm_runtime_put_sync(&pdev->dev);
+ dev_err(dev, "pm_runtime_get_sync() failed\n");
+ pm_runtime_put_noidle(dev);
+ return error;
+ }
+
+ error = omap4_keypad_check_revision(dev, keypad_data);
+ if (!error) {
+ /* Ensure device does not raise interrupts */
+ omap4_keypad_stop(keypad_data);
}
+
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
if (error)
- goto err_pm_disable;
+ return error;
/* input device allocation */
- keypad_data->input = input_dev = input_allocate_device();
- if (!input_dev) {
- error = -ENOMEM;
- goto err_pm_disable;
- }
+ keypad_data->input = input_dev = devm_input_allocate_device(dev);
+ if (!input_dev)
+ return -ENOMEM;
input_dev->name = pdev->name;
- input_dev->dev.parent = &pdev->dev;
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
@@ -344,84 +432,51 @@ static int omap4_keypad_probe(struct platform_device *pdev)
keypad_data->row_shift = get_count_order(keypad_data->cols);
max_keys = keypad_data->rows << keypad_data->row_shift;
- keypad_data->keymap = kcalloc(max_keys,
- sizeof(keypad_data->keymap[0]),
- GFP_KERNEL);
+ keypad_data->keymap = devm_kcalloc(dev,
+ max_keys,
+ sizeof(keypad_data->keymap[0]),
+ GFP_KERNEL);
if (!keypad_data->keymap) {
- dev_err(&pdev->dev, "Not enough memory for keymap\n");
- error = -ENOMEM;
- goto err_free_input;
+ dev_err(dev, "Not enough memory for keymap\n");
+ return -ENOMEM;
}
error = matrix_keypad_build_keymap(NULL, NULL,
keypad_data->rows, keypad_data->cols,
keypad_data->keymap, input_dev);
if (error) {
- dev_err(&pdev->dev, "failed to build keymap\n");
- goto err_free_keymap;
+ dev_err(dev, "failed to build keymap\n");
+ return error;
}
- error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,
- omap4_keypad_irq_thread_fn, IRQF_ONESHOT,
- "omap4-keypad", keypad_data);
+ error = devm_request_threaded_irq(dev, keypad_data->irq,
+ omap4_keypad_irq_handler,
+ omap4_keypad_irq_thread_fn,
+ IRQF_ONESHOT,
+ "omap4-keypad", keypad_data);
if (error) {
- dev_err(&pdev->dev, "failed to register interrupt\n");
- goto err_free_keymap;
+ dev_err(dev, "failed to register interrupt\n");
+ return error;
}
error = input_register_device(keypad_data->input);
- if (error < 0) {
- dev_err(&pdev->dev, "failed to register input device\n");
- goto err_free_irq;
+ if (error) {
+ dev_err(dev, "failed to register input device\n");
+ return error;
}
- device_init_wakeup(&pdev->dev, true);
- error = dev_pm_set_wake_irq(&pdev->dev, keypad_data->irq);
+ device_init_wakeup(dev, true);
+ error = dev_pm_set_wake_irq(dev, keypad_data->irq);
if (error)
- dev_warn(&pdev->dev,
- "failed to set up wakeup irq: %d\n", error);
-
- platform_set_drvdata(pdev, keypad_data);
+ dev_warn(dev, "failed to set up wakeup irq: %d\n", error);
return 0;
-
-err_free_irq:
- free_irq(keypad_data->irq, keypad_data);
-err_free_keymap:
- kfree(keypad_data->keymap);
-err_free_input:
- input_free_device(input_dev);
-err_pm_disable:
- pm_runtime_disable(&pdev->dev);
- iounmap(keypad_data->base);
-err_release_mem:
- release_mem_region(res->start, resource_size(res));
-err_free_keypad:
- kfree(keypad_data);
- return error;
}
static int omap4_keypad_remove(struct platform_device *pdev)
{
- struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
- struct resource *res;
-
dev_pm_clear_wake_irq(&pdev->dev);
- free_irq(keypad_data->irq, keypad_data);
-
- pm_runtime_disable(&pdev->dev);
-
- input_unregister_device(keypad_data->input);
-
- iounmap(keypad_data->base);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, resource_size(res));
-
- kfree(keypad_data->keymap);
- kfree(keypad_data);
-
return 0;
}
@@ -437,6 +492,7 @@ static struct platform_driver omap4_keypad_driver = {
.driver = {
.name = "omap4-keypad",
.of_match_table = omap_keypad_dt_match,
+ .pm = &omap4_keypad_pm_ops,
},
};
module_platform_driver(omap4_keypad_driver);