116 static inline int backlight_update_status(struct backlight_device *bd)  in backlight_update_status()  argument
120 	mutex_lock(&bd->update_lock);  in backlight_update_status()
121 	if (bd->ops && bd->ops->update_status)  in backlight_update_status()
122 		ret = bd->ops->update_status(bd);  in backlight_update_status()
123 	mutex_unlock(&bd->update_lock);  in backlight_update_status()
132 static inline int backlight_enable(struct backlight_device *bd)  in backlight_enable()  argument
134 	if (!bd)  in backlight_enable()
137 	bd->props.power = FB_BLANK_UNBLANK;  in backlight_enable()
138 	bd->props.fb_blank = FB_BLANK_UNBLANK;  in backlight_enable()
139 	bd->props.state &= ~BL_CORE_FBBLANK;  in backlight_enable()
141 	return backlight_update_status(bd);  in backlight_enable()
148 static inline int backlight_disable(struct backlight_device *bd)  in backlight_disable()  argument
150 	if (!bd)  in backlight_disable()
153 	bd->props.power = FB_BLANK_POWERDOWN;  in backlight_disable()
154 	bd->props.fb_blank = FB_BLANK_POWERDOWN;  in backlight_disable()
155 	bd->props.state |= BL_CORE_FBBLANK;  in backlight_disable()
157 	return backlight_update_status(bd);  in backlight_disable()
164 static inline void backlight_put(struct backlight_device *bd)  in backlight_put()  argument
166 	if (bd)  in backlight_put()
167 		put_device(&bd->dev);  in backlight_put()
177 extern void backlight_device_unregister(struct backlight_device *bd);
179 					struct backlight_device *bd);
180 extern void backlight_force_update(struct backlight_device *bd,
185 extern int backlight_device_set_brightness(struct backlight_device *bd, unsigned long brightness);