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Commit defb512d authored by Richard Purdie's avatar Richard Purdie
Browse files

leds: Add suspend/resume state flags to leds-gpio 



Add an option to preserve LED state when suspending/resuming to the LED
gpio driver. Based on a suggestion from Robert Jarzmik.

Tested-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
parent 41c42ff5

drivers/leds/leds-gpio.c

+2 −1
Original line number Diff line number Diff line
@@ -93,6 +93,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template, 
	}

	led_dat->cdev.brightness_set = gpio_led_set;

	led_dat->cdev.brightness = LED_OFF;

	if (!template->retain_state_suspended)

		led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;



	ret = gpio_direction_output(led_dat->gpio, led_dat->active_low);

include/linux/leds.h

+2 −1
Original line number Diff line number Diff line
@@ -141,7 +141,8 @@ struct gpio_led { 
	const char *name;

	const char *default_trigger;

	unsigned 	gpio;

	u8 		active_low;

	u8 		active_low : 1;

	u8		retain_state_suspended : 1;

};



struct gpio_led_platform_data {