leds: Add support for setting brightness in a synchronous way

[cascardo/linux.git] / drivers / leds / led-class.c

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 65722de..dbeebac 100644 (file)
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -55,7 +55,7 @@ static ssize_t brightness_store(struct device *dev,
 
        if (state == LED_OFF)
                led_trigger_remove(led_cdev);
-       __led_set_brightness(led_cdev, state);
+       led_set_brightness(led_cdev, state);
 
        ret = size;
 unlock:
@@ -109,7 +109,7 @@ static void led_timer_function(unsigned long data)
        unsigned long delay;
 
        if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {
-               __led_set_brightness(led_cdev, LED_OFF);
+               led_set_brightness_async(led_cdev, LED_OFF);
                return;
        }
 
@@ -132,7 +132,7 @@ static void led_timer_function(unsigned long data)
                delay = led_cdev->blink_delay_off;
        }
 
-       __led_set_brightness(led_cdev, brightness);
+       led_set_brightness_async(led_cdev, brightness);
 
        /* Return in next iteration if led is in one-shot mode and we are in
         * the final blink state so that the led is toggled each delay_on +
@@ -158,7 +158,7 @@ static void set_brightness_delayed(struct work_struct *ws)
 
        led_stop_software_blink(led_cdev);
 
-       __led_set_brightness(led_cdev, led_cdev->delayed_set_value);
+       led_set_brightness_async(led_cdev, led_cdev->delayed_set_value);
 }
 
 /**
@@ -233,6 +233,8 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
        if (!led_cdev->max_brightness)
                led_cdev->max_brightness = LED_FULL;
 
+       led_cdev->flags |= SET_BRIGHTNESS_ASYNC;
+
        led_update_brightness(led_cdev);
 
        INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);