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Input: gpio-keys - add support for wakeup event action

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Add support for specifying event actions to trigger wakeup when using
the gpio-keys input device as a wakeup source.

This would allow the device to configure when to wakeup the system. For
example a gpio-keys input device for pen insert, may only want to wakeup
the system when ejecting the pen.

Suggested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Jeffy Chen
2018-03-08 16:03:27 -08:00
committed by Dmitry Torokhov
parent 7085123333
commit 83fc580dcc
4 changed files with 154 additions and 14 deletions
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2
include/linux/gpio_keys.h
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@@ -13,6 +13,7 @@ struct device;
* @desc: label that will be attached to button's gpio
* @type: input event type (%EV_KEY, %EV_SW, %EV_ABS)
* @wakeup: configure the button as a wake-up source
* @wakeup_event_action: event action to trigger wakeup
* @debounce_interval: debounce ticks interval in msecs
* @can_disable: %true indicates that userspace is allowed to
* disable button via sysfs
@@ -26,6 +27,7 @@ struct gpio_keys_button {
const char *desc;
unsigned int type;
int wakeup;
int wakeup_event_action;
int debounce_interval;
bool can_disable;
int value;