43 	struct backlight_device *bd;  in fb_notifier_callback()  local
52 	bd = container_of(self, struct backlight_device, fb_notif);  in fb_notifier_callback()
53 	mutex_lock(&bd->ops_lock);  in fb_notifier_callback()
54 	if (bd->ops)  in fb_notifier_callback()
55 		if (!bd->ops->check_fb ||  in fb_notifier_callback()
56 		    bd->ops->check_fb(bd, evdata->info)) {  in fb_notifier_callback()
59 			    !bd->fb_bl_on[node]) {  in fb_notifier_callback()
60 				bd->fb_bl_on[node] = true;  in fb_notifier_callback()
61 				if (!bd->use_count++) {  in fb_notifier_callback()
62 					bd->props.state &= ~BL_CORE_FBBLANK;  in fb_notifier_callback()
63 					bd->props.fb_blank = FB_BLANK_UNBLANK;  in fb_notifier_callback()
64 					backlight_update_status(bd);  in fb_notifier_callback()
67 				   bd->fb_bl_on[node]) {  in fb_notifier_callback()
68 				bd->fb_bl_on[node] = false;  in fb_notifier_callback()
69 				if (!(--bd->use_count)) {  in fb_notifier_callback()
70 					bd->props.state |= BL_CORE_FBBLANK;  in fb_notifier_callback()
71 					bd->props.fb_blank = fb_blank;  in fb_notifier_callback()
72 					backlight_update_status(bd);  in fb_notifier_callback()
76 	mutex_unlock(&bd->ops_lock);  in fb_notifier_callback()
80 static int backlight_register_fb(struct backlight_device *bd)  in backlight_register_fb()  argument
82 	memset(&bd->fb_notif, 0, sizeof(bd->fb_notif));  in backlight_register_fb()
83 	bd->fb_notif.notifier_call = fb_notifier_callback;  in backlight_register_fb()
85 	return fb_register_client(&bd->fb_notif);  in backlight_register_fb()
88 static void backlight_unregister_fb(struct backlight_device *bd)  in backlight_unregister_fb()  argument
90 	fb_unregister_client(&bd->fb_notif);  in backlight_unregister_fb()
93 static inline int backlight_register_fb(struct backlight_device *bd)  in backlight_register_fb()  argument
98 static inline void backlight_unregister_fb(struct backlight_device *bd)  in backlight_unregister_fb()  argument
103 static void backlight_generate_event(struct backlight_device *bd,  in backlight_generate_event()  argument
120 	kobject_uevent_env(&bd->dev.kobj, KOBJ_CHANGE, envp);  in backlight_generate_event()
121 	sysfs_notify(&bd->dev.kobj, NULL, "actual_brightness");  in backlight_generate_event()
127 	struct backlight_device *bd = to_backlight_device(dev);  in bl_power_show()  local
129 	return sprintf(buf, "%d\n", bd->props.power);  in bl_power_show()
136 	struct backlight_device *bd = to_backlight_device(dev);  in bl_power_store()  local
144 	mutex_lock(&bd->ops_lock);  in bl_power_store()
145 	if (bd->ops) {  in bl_power_store()
147 		if (bd->props.power != power) {  in bl_power_store()
148 			bd->props.power = power;  in bl_power_store()
149 			backlight_update_status(bd);  in bl_power_store()
153 	mutex_unlock(&bd->ops_lock);  in bl_power_store()
162 	struct backlight_device *bd = to_backlight_device(dev);  in brightness_show()  local
164 	return sprintf(buf, "%d\n", bd->props.brightness);  in brightness_show()
171 	struct backlight_device *bd = to_backlight_device(dev);  in brightness_store()  local
180 	mutex_lock(&bd->ops_lock);  in brightness_store()
181 	if (bd->ops) {  in brightness_store()
182 		if (brightness > bd->props.max_brightness)  in brightness_store()
186 			bd->props.brightness = brightness;  in brightness_store()
187 			backlight_update_status(bd);  in brightness_store()
191 	mutex_unlock(&bd->ops_lock);  in brightness_store()
193 	backlight_generate_event(bd, BACKLIGHT_UPDATE_SYSFS);  in brightness_store()
202 	struct backlight_device *bd = to_backlight_device(dev);  in type_show()  local
204 	return sprintf(buf, "%s\n", backlight_types[bd->props.type]);  in type_show()
211 	struct backlight_device *bd = to_backlight_device(dev);  in max_brightness_show()  local
213 	return sprintf(buf, "%d\n", bd->props.max_brightness);  in max_brightness_show()
221 	struct backlight_device *bd = to_backlight_device(dev);  in actual_brightness_show()  local
223 	mutex_lock(&bd->ops_lock);  in actual_brightness_show()
224 	if (bd->ops && bd->ops->get_brightness)  in actual_brightness_show()
225 		rc = sprintf(buf, "%d\n", bd->ops->get_brightness(bd));  in actual_brightness_show()
227 		rc = sprintf(buf, "%d\n", bd->props.brightness);  in actual_brightness_show()
228 	mutex_unlock(&bd->ops_lock);  in actual_brightness_show()
239 	struct backlight_device *bd = to_backlight_device(dev);  in backlight_suspend()  local
241 	mutex_lock(&bd->ops_lock);  in backlight_suspend()
242 	if (bd->ops && bd->ops->options & BL_CORE_SUSPENDRESUME) {  in backlight_suspend()
243 		bd->props.state |= BL_CORE_SUSPENDED;  in backlight_suspend()
244 		backlight_update_status(bd);  in backlight_suspend()
246 	mutex_unlock(&bd->ops_lock);  in backlight_suspend()
253 	struct backlight_device *bd = to_backlight_device(dev);  in backlight_resume()  local
255 	mutex_lock(&bd->ops_lock);  in backlight_resume()
256 	if (bd->ops && bd->ops->options & BL_CORE_SUSPENDRESUME) {  in backlight_resume()
257 		bd->props.state &= ~BL_CORE_SUSPENDED;  in backlight_resume()
258 		backlight_update_status(bd);  in backlight_resume()
260 	mutex_unlock(&bd->ops_lock);  in backlight_resume()
271 	struct backlight_device *bd = to_backlight_device(dev);  in bl_device_release()  local
272 	kfree(bd);  in bl_device_release()
293 void backlight_force_update(struct backlight_device *bd,  in backlight_force_update()  argument
296 	mutex_lock(&bd->ops_lock);  in backlight_force_update()
297 	if (bd->ops && bd->ops->get_brightness)  in backlight_force_update()
298 		bd->props.brightness = bd->ops->get_brightness(bd);  in backlight_force_update()
299 	mutex_unlock(&bd->ops_lock);  in backlight_force_update()
300 	backlight_generate_event(bd, reason);  in backlight_force_update()
386 	struct backlight_device *bd;  in backlight_device_registered()  local
389 	list_for_each_entry(bd, &backlight_dev_list, entry) {  in backlight_device_registered()
390 		if (bd->props.type == type) {  in backlight_device_registered()
407 void backlight_device_unregister(struct backlight_device *bd)  in backlight_device_unregister()  argument
409 	if (!bd)  in backlight_device_unregister()
413 	list_del(&bd->entry);  in backlight_device_unregister()
418 	if (pmac_backlight == bd)  in backlight_device_unregister()
424 				     BACKLIGHT_UNREGISTERED, bd);  in backlight_device_unregister()
426 	mutex_lock(&bd->ops_lock);  in backlight_device_unregister()
427 	bd->ops = NULL;  in backlight_device_unregister()
428 	mutex_unlock(&bd->ops_lock);  in backlight_device_unregister()
430 	backlight_unregister_fb(bd);  in backlight_device_unregister()
431 	device_unregister(&bd->dev);  in backlight_device_unregister()
530 				struct backlight_device *bd)  in devm_backlight_device_unregister()  argument
535 				devm_backlight_device_match, bd);  in devm_backlight_device_unregister()