extern struct backlight_device *backlight_device_register(const char *name,
struct device *dev, void *devdata, const struct backlight_ops *ops,
const struct backlight_properties *props);
+extern struct backlight_device *devm_backlight_device_register(
+ struct device *dev, const char *name, struct device *parent,
+ void *devdata, const struct backlight_ops *ops,
+ const struct backlight_properties *props);
extern void backlight_device_unregister(struct backlight_device *bd);
+extern void devm_backlight_device_unregister(struct device *dev,
+ struct backlight_device *bd);
extern void backlight_force_update(struct backlight_device *bd,
enum backlight_update_reason reason);