leds: Add support for setting brightness in a synchronous way
There are use cases when setting a LED brightness has to
have immediate effect (e.g. setting a torch LED brightness).
This patch extends LED subsystem to support such operations.
The LED subsystem internal API __led_set_brightness is changed
to led_set_brightness_async and new led_set_brightness_sync API
is added.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
diff --git a/drivers/leds/trigger/ledtrig-gpio.c b/drivers/leds/trigger/ledtrig-gpio.c
index c86c418..4cc7040 100644
--- a/drivers/leds/trigger/ledtrig-gpio.c
+++ b/drivers/leds/trigger/ledtrig-gpio.c
@@ -54,12 +54,12 @@
if (tmp) {
if (gpio_data->desired_brightness)
- __led_set_brightness(gpio_data->led,
+ led_set_brightness_async(gpio_data->led,
gpio_data->desired_brightness);
else
- __led_set_brightness(gpio_data->led, LED_FULL);
+ led_set_brightness_async(gpio_data->led, LED_FULL);
} else {
- __led_set_brightness(gpio_data->led, LED_OFF);
+ led_set_brightness_async(gpio_data->led, LED_OFF);
}
}