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authorStephen Rothwell <sfr@canb.auug.org.au>2014-10-09 16:15:04 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2014-10-09 16:15:04 +1100
commit9e6f1d3a1617e09763a350a7b24f7d9e0699fc96 (patch)
tree2c8a44acc8295aede314f640d32cb4dfd4054f86 /include/linux
parentaf3c40c095cf47c904ffeba49bb0e88d170b37df (diff)
parenta092e19b688be88f7329bd05f90cb92ebe1a4f5b (diff)
Merge remote-tracking branch 'gpio/for-next'
Conflicts: drivers/gpio/gpiolib.c drivers/pinctrl/qcom/pinctrl-msm.c
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/gpio/driver.h8
-rw-r--r--include/linux/platform_data/gpio-dwapb.h32
-rw-r--r--include/linux/spi/mcp23s08.h18
3 files changed, 56 insertions, 2 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c5e41da20112..249db3057e4d 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -56,6 +56,8 @@ struct seq_file;
* as the chip access may sleep when e.g. reading out the IRQ status
* registers.
* @exported: flags if the gpiochip is exported for use from sysfs. Private.
+ * @irq_not_threaded: flag must be set if @can_sleep is set but the
+ * IRQs don't need to be threaded
*
* A gpio_chip can help platforms abstract various sources of GPIOs so
* they can all be accessed through a common programing interface.
@@ -101,6 +103,7 @@ struct gpio_chip {
struct gpio_desc *desc;
const char *const *names;
bool can_sleep;
+ bool irq_not_threaded;
bool exported;
#ifdef CONFIG_GPIOLIB_IRQCHIP
@@ -141,7 +144,7 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
/* add/remove chips */
extern int gpiochip_add(struct gpio_chip *chip);
-extern int gpiochip_remove(struct gpio_chip *chip);
+extern void gpiochip_remove(struct gpio_chip *chip);
extern struct gpio_chip *gpiochip_find(void *data,
int (*match)(struct gpio_chip *chip, void *data));
@@ -166,7 +169,8 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
#endif /* CONFIG_GPIOLIB_IRQCHIP */
-int gpiochip_request_own_desc(struct gpio_desc *desc, const char *label);
+struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
+ const char *label);
void gpiochip_free_own_desc(struct gpio_desc *desc);
#else /* CONFIG_GPIOLIB */
diff --git a/include/linux/platform_data/gpio-dwapb.h b/include/linux/platform_data/gpio-dwapb.h
new file mode 100644
index 000000000000..28702c849af1
--- /dev/null
+++ b/include/linux/platform_data/gpio-dwapb.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ */
+
+#ifndef GPIO_DW_APB_H
+#define GPIO_DW_APB_H
+
+struct dwapb_port_property {
+ struct device_node *node;
+ const char *name;
+ unsigned int idx;
+ unsigned int ngpio;
+ unsigned int gpio_base;
+ unsigned int irq;
+ bool irq_shared;
+};
+
+struct dwapb_platform_data {
+ struct dwapb_port_property *properties;
+ unsigned int nports;
+};
+
+#endif
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h
index 2d676d5aaa89..aa07d7b32568 100644
--- a/include/linux/spi/mcp23s08.h
+++ b/include/linux/spi/mcp23s08.h
@@ -22,4 +22,22 @@ struct mcp23s08_platform_data {
* base to base+15 (or base+31 for s17 variant).
*/
unsigned base;
+ /* Marks the device as a interrupt controller.
+ * NOTE: The interrupt functionality is only supported for i2c
+ * versions of the chips. The spi chips can also do the interrupts,
+ * but this is not supported by the linux driver yet.
+ */
+ bool irq_controller;
+
+ /* Sets the mirror flag in the IOCON register. Devices
+ * with two interrupt outputs (these are the devices ending with 17 and
+ * those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and
+ * IO 8-15 are bank 2. These chips have two different interrupt outputs:
+ * One for bank 1 and another for bank 2. If irq-mirror is set, both
+ * interrupts are generated regardless of the bank that an input change
+ * occurred on. If it is not set, the interrupt are only generated for
+ * the bank they belong to.
+ * On devices with only one interrupt output this property is useless.
+ */
+ bool mirror;
};