2 files changed, 20 insertions, 0 deletions

diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 79c1b0d609a8..1c298d5bf3af 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -32,6 +32,8 @@ static int fb_notifier_callback(struct notifier_block *self,
         case FB_EVENT_BLANK:
         case FB_EVENT_MODE_CHANGE:
         case FB_EVENT_MODE_CHANGE_ALL:
+        case FB_EARLY_EVENT_BLANK:
+        case FB_R_EARLY_EVENT_BLANK:
                 break;
         default:
                 return 0;
@@ -46,6 +48,14 @@ static int fb_notifier_callback(struct notifier_block *self,
                 if (event == FB_EVENT_BLANK) {
                         if (ld->ops->set_power)
                                 ld->ops->set_power(ld, *(int *)evdata->data);
+                } else if (event == FB_EARLY_EVENT_BLANK) {
+                        if (ld->ops->early_set_power)
+                                ld->ops->early_set_power(ld,
+                                                *(int *)evdata->data);
+                } else if (event == FB_R_EARLY_EVENT_BLANK) {
+                        if (ld->ops->r_early_set_power)
+                                ld->ops->r_early_set_power(ld,
+                                                *(int *)evdata->data);
                 } else {
                         if (ld->ops->set_mode)
                                 ld->ops->set_mode(ld, evdata->data);
diff --git a/include/linux/lcd.h b/include/linux/lcd.h
index 8877123f2d6e..e00c3b0ebc6b 100644
--- a/include/linux/lcd.h
+++ b/include/linux/lcd.h
@@ -40,6 +40,16 @@ struct lcd_ops {
         /* Get the LCD panel power status (0: full on, 1..3: controller
            power on, flat panel power off, 4: full off), see FB_BLANK_XXX */
         int (*get_power)(struct lcd_device *);
+        /*
+         * Enable or disable power to the LCD(0: on; 4: off, see FB_BLANK_XXX)
+         * and this callback would be called proir to fb driver's callback.
+         *
+         * P.S. note that if early_set_power is not NULL then early fb notifier
+         *      would be registered.
+         */
+        int (*early_set_power)(struct lcd_device *, int power);
+        /* revert the effects of the early blank event. */
+        int (*r_early_set_power)(struct lcd_device *, int power);
         /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */
         int (*set_power)(struct lcd_device *, int power);
         /* Get the current contrast setting (0-max_contrast) */