1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/leds.h b/include/linux/leds.h
index 737f9b1051f2..dfe70e928eae 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -44,11 +44,19 @@ struct led_classdev {
 #define LED_BLINK_ONESHOT_STOP  (1 << 18)
 #define LED_BLINK_INVERT        (1 << 19)
 #define LED_SYSFS_DISABLE       (1 << 20)
+#define SET_BRIGHTNESS_ASYNC    (1 << 21)
+#define SET_BRIGHTNESS_SYNC     (1 << 22)
 
         /* Set LED brightness level */
         /* Must not sleep, use a workqueue if needed */
         void            (*brightness_set)(struct led_classdev *led_cdev,
                                           enum led_brightness brightness);
+        /*
+         * Set LED brightness level immediately - it can block the caller for
+         * the time required for accessing a LED device register.
+         */
+        int             (*brightness_set_sync)(struct led_classdev *led_cdev,
+                                        enum led_brightness brightness);
         /* Get LED brightness level */
         enum led_brightness (*brightness_get)(struct led_classdev *led_cdev);