174 	int (*check_fb)(struct backlight_device *bd, struct fb_info *info);
347 static inline int backlight_update_status(struct backlight_device *bd)  in backlight_update_status()  argument
351 	mutex_lock(&bd->update_lock);  in backlight_update_status()
352 	if (bd->ops && bd->ops->update_status)  in backlight_update_status()
353 		ret = bd->ops->update_status(bd);  in backlight_update_status()
354 	mutex_unlock(&bd->update_lock);  in backlight_update_status()
363 static inline int backlight_enable(struct backlight_device *bd)  in backlight_enable()  argument
365 	if (!bd)  in backlight_enable()
368 	bd->props.power = FB_BLANK_UNBLANK;  in backlight_enable()
369 	bd->props.fb_blank = FB_BLANK_UNBLANK;  in backlight_enable()
370 	bd->props.state &= ~BL_CORE_FBBLANK;  in backlight_enable()
372 	return backlight_update_status(bd);  in backlight_enable()
379 static inline int backlight_disable(struct backlight_device *bd)  in backlight_disable()  argument
381 	if (!bd)  in backlight_disable()
384 	bd->props.power = FB_BLANK_POWERDOWN;  in backlight_disable()
385 	bd->props.fb_blank = FB_BLANK_POWERDOWN;  in backlight_disable()
386 	bd->props.state |= BL_CORE_FBBLANK;  in backlight_disable()
388 	return backlight_update_status(bd);  in backlight_disable()
403 static inline bool backlight_is_blank(const struct backlight_device *bd)  in backlight_is_blank()  argument
405 	return bd->props.power != FB_BLANK_UNBLANK ||  in backlight_is_blank()
406 	       bd->props.fb_blank != FB_BLANK_UNBLANK ||  in backlight_is_blank()
407 	       bd->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK);  in backlight_is_blank()
421 static inline int backlight_get_brightness(const struct backlight_device *bd)  in backlight_get_brightness()  argument
423 	if (backlight_is_blank(bd))  in backlight_get_brightness()
426 		return bd->props.brightness;  in backlight_get_brightness()
438 void backlight_device_unregister(struct backlight_device *bd);
440 				      struct backlight_device *bd);
441 void backlight_force_update(struct backlight_device *bd,
447 int backlight_device_set_brightness(struct backlight_device *bd,