From: Jacek Anaszewski <[email protected]> Add the flag LED_INIT_DEFAULT_TRIGGER for indicating that trigger being set is a default trigger for the LED class device, and thus it should be initialized with settings provided in the fwnode.
Set the flag in the led_trigger_set_default(). It is expected to be cleared in the activate() op of a trigger after trigger fwnode initialization data is parsed and applied. This should happen only once after LED class device registration, to allow leaving triggers in the idle state on re-apply and let the users apply their own settings without being interfered with the default ones. Signed-off-by: Jacek Anaszewski <[email protected]> Acked-by: Pavel Machek <[email protected]> Signed-off-by: Krzysztof Kozlowski <[email protected]> --- drivers/leds/led-triggers.c | 2 ++ include/linux/leds.h | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 52b12e601ebe..9421222ca7a0 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -201,10 +201,12 @@ void led_trigger_set_default(struct led_classdev *led_cdev) down_write(&led_cdev->trigger_lock); list_for_each_entry(trig, &trigger_list, next_trig) { if (!strcmp(led_cdev->default_trigger, trig->name)) { + led_cdev->flags |= LED_INIT_DEFAULT_TRIGGER; led_trigger_set(led_cdev, trig); break; } } + up_write(&led_cdev->trigger_lock); up_read(&triggers_list_lock); } diff --git a/include/linux/leds.h b/include/linux/leds.h index 580cbaef789a..5263f87e1d2c 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -51,6 +51,7 @@ struct led_classdev { #define LED_PANIC_INDICATOR BIT(20) #define LED_BRIGHT_HW_CHANGED BIT(21) #define LED_RETAIN_AT_SHUTDOWN BIT(22) +#define LED_INIT_DEFAULT_TRIGGER BIT(23) /* set_brightness_work / blink_timer flags, atomic, private. */ unsigned long work_flags; -- 2.7.4
