Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

[karo-tx-linux.git] / include / linux / backlight.h

diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 72647429adf61e3fac4b0b91efc0f9c1eeb2c63c..adb14a8616df53e681031e895ff37e783ca287f7 100644 (file)
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -40,6 +40,11 @@ enum backlight_type {
        BACKLIGHT_TYPE_MAX,
 };
 
+enum backlight_notification {
+       BACKLIGHT_REGISTERED,
+       BACKLIGHT_UNREGISTERED,
+};
+
 struct backlight_device;
 struct fb_info;
 
@@ -133,6 +138,8 @@ extern void devm_backlight_device_unregister(struct device *dev,
 extern void backlight_force_update(struct backlight_device *bd,
                                   enum backlight_update_reason reason);
 extern bool backlight_device_registered(enum backlight_type type);
+extern int backlight_register_notifier(struct notifier_block *nb);
+extern int backlight_unregister_notifier(struct notifier_block *nb);
 
 #define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)