diff options
Diffstat (limited to 'drivers/leds/led-core.c')
| -rw-r--r-- | drivers/leds/led-core.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c index f57a96cb7b7d..19e1e60dfaa3 100644 --- a/drivers/leds/led-core.c +++ b/drivers/leds/led-core.c @@ -205,8 +205,6 @@ EXPORT_SYMBOL_GPL(led_stop_software_blink); void led_set_brightness(struct led_classdev *led_cdev, enum led_brightness brightness) { - int ret = 0; - /* * In case blinking is on delay brightness setting * until the next timer tick. @@ -227,17 +225,7 @@ void led_set_brightness(struct led_classdev *led_cdev, return; } - if (led_cdev->flags & SET_BRIGHTNESS_ASYNC) { - led_set_brightness_nosleep(led_cdev, brightness); - return; - } else if (led_cdev->flags & SET_BRIGHTNESS_SYNC) - ret = led_set_brightness_sync(led_cdev, brightness); - else - ret = -EINVAL; - - if (ret < 0) - dev_dbg(led_cdev->dev, "Setting LED brightness failed (%d)\n", - ret); + led_set_brightness_nosleep(led_cdev, brightness); } EXPORT_SYMBOL_GPL(led_set_brightness); @@ -268,6 +256,24 @@ void led_set_brightness_nosleep(struct led_classdev *led_cdev, } EXPORT_SYMBOL_GPL(led_set_brightness_nosleep); +int led_set_brightness_sync(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) + return -EBUSY; + + led_cdev->brightness = min(value, led_cdev->max_brightness); + + if (led_cdev->flags & LED_SUSPENDED) + return 0; + + if (led_cdev->brightness_set_blocking) + return led_cdev->brightness_set_blocking(led_cdev, + led_cdev->brightness); + return -ENOTSUPP; +} +EXPORT_SYMBOL_GPL(led_set_brightness_sync); + int led_update_brightness(struct led_classdev *led_cdev) { int ret = 0; |