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input: gpio_keys_polled: Add support for GPIO descriptors

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GPIO descriptors are the preferred way over legacy GPIO numbers
nowadays. Convert the driver to use GPIO descriptors internally but
still allow passing legacy GPIO numbers from platform data to support
existing platforms.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Aaron Lu
2014-10-21 23:30:25 +02:00
committed by Rafael J. Wysocki
parent 5c51277a9a
commit 633a21d80b
2 changed files with 30 additions and 12 deletions
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3
include/linux/gpio_keys.h
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@@ -2,6 +2,7 @@
#define _GPIO_KEYS_H
struct device;
struct gpio_desc;
/**
* struct gpio_keys_button - configuration parameters
@@ -17,6 +18,7 @@ struct device;
* disable button via sysfs
* @value: axis value for %EV_ABS
* @irq: Irq number in case of interrupt keys
* @gpiod: GPIO descriptor
*/
struct gpio_keys_button {
unsigned int code;
@@ -29,6 +31,7 @@ struct gpio_keys_button {
bool can_disable;
int value;
unsigned int irq;
struct gpio_desc *gpiod;
};
/**