diff options
| author | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2018-12-10 10:29:58 +0100 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2018-12-10 21:31:55 +0100 |
| commit | 02d31765bb35101d711b862fc619a49857bb9070 (patch) | |
| tree | c055c55324b7338f3c99a75c30b6f884d2c615f2 | |
| parent | c4f7bd4a42758ed42cf7f7a5fd46e0b54ce23ad2 (diff) | |
led: triggers: Add LED_INIT_DEFAULT_TRIGGER flag
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 interference from the default ones.
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
| -rw-r--r-- | drivers/leds/led-triggers.c | 1 | ||||
| -rw-r--r-- | include/linux/leds.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 52b12e601ebe..f28ce25d24d0 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -201,6 +201,7 @@ 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; } diff --git a/include/linux/leds.h b/include/linux/leds.h index 7393a316d9fa..6f05a5816371 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; |