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| author | Hans de Goede <hdegoede@redhat.com> | 2024-05-31 13:41:23 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2024-05-31 12:57:42 +0100 |
| commit | 0921a57c91648b08857b47a2f26fa7942f06120f (patch) | |
| tree | a4d9931e4e9f78d01881fd95ffe4effad0b8ad69 | |
| parent | 5607ca92e6274dfb85d0ff7c4e91e6c4ddb6d25c (diff) | |
| download | linux-0921a57c91648b08857b47a2f26fa7942f06120f.tar.gz linux-0921a57c91648b08857b47a2f26fa7942f06120f.tar.bz2 linux-0921a57c91648b08857b47a2f26fa7942f06120f.zip | |
leds: trigger: Add led_mc_trigger_event() function
Add a new led_mc_trigger_event() function for triggers which want to
change the color of a multi-color LED based on their trigger conditions.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240531114124.45346-6-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | drivers/leds/led-triggers.c | 20 | ||||
| -rw-r--r-- | include/linux/leds.h | 6 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index b1b323b19301..638aa6591092 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -396,6 +396,26 @@ void led_trigger_event(struct led_trigger *trig, } EXPORT_SYMBOL_GPL(led_trigger_event); +void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness) +{ + struct led_classdev *led_cdev; + + if (!trig) + return; + + rcu_read_lock(); + list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list) { + if (!(led_cdev->flags & LED_MULTI_COLOR)) + continue; + + led_mc_set_brightness(led_cdev, intensity_value, num_colors, brightness); + } + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(led_mc_trigger_event); + static void led_trigger_blink_setup(struct led_trigger *trig, unsigned long delay_on, unsigned long delay_off, diff --git a/include/linux/leds.h b/include/linux/leds.h index ae07e44f1dcb..517b6198df07 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -510,6 +510,9 @@ void led_trigger_register_simple(const char *name, struct led_trigger **trigger); void led_trigger_unregister_simple(struct led_trigger *trigger); void led_trigger_event(struct led_trigger *trigger, enum led_brightness event); +void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness); void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on, unsigned long delay_off); void led_trigger_blink_oneshot(struct led_trigger *trigger, @@ -552,6 +555,9 @@ static inline void led_trigger_register_simple(const char *name, static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {} static inline void led_trigger_event(struct led_trigger *trigger, enum led_brightness event) {} +static inline void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness) {} static inline void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on, unsigned long delay_off) {} |