31 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in brightness_show()  local
34 	led_update_brightness(led_cdev);  in brightness_show()
36 	return sprintf(buf, "%u\n", led_cdev->brightness);  in brightness_show()
42 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in brightness_store()  local
46 	mutex_lock(&led_cdev->led_access);  in brightness_store()
48 	if (led_sysfs_is_disabled(led_cdev)) {  in brightness_store()
58 		led_trigger_remove(led_cdev);  in brightness_store()
59 	led_set_brightness(led_cdev, state);  in brightness_store()
63 	mutex_unlock(&led_cdev->led_access);  in brightness_store()
71 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in max_brightness_show()  local
73 	return sprintf(buf, "%u\n", led_cdev->max_brightness);  in max_brightness_show()
110 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in brightness_hw_changed_show()  local
112 	if (led_cdev->brightness_hw_changed == -1)  in brightness_hw_changed_show()
115 	return sprintf(buf, "%u\n", led_cdev->brightness_hw_changed);  in brightness_hw_changed_show()
120 static int led_add_brightness_hw_changed(struct led_classdev *led_cdev)  in led_add_brightness_hw_changed()  argument
122 	struct device *dev = led_cdev->dev;  in led_add_brightness_hw_changed()
131 	led_cdev->brightness_hw_changed_kn =  in led_add_brightness_hw_changed()
133 	if (!led_cdev->brightness_hw_changed_kn) {  in led_add_brightness_hw_changed()
142 static void led_remove_brightness_hw_changed(struct led_classdev *led_cdev)  in led_remove_brightness_hw_changed()  argument
144 	sysfs_put(led_cdev->brightness_hw_changed_kn);  in led_remove_brightness_hw_changed()
145 	device_remove_file(led_cdev->dev, &dev_attr_brightness_hw_changed);  in led_remove_brightness_hw_changed()
148 void led_classdev_notify_brightness_hw_changed(struct led_classdev *led_cdev,  in led_classdev_notify_brightness_hw_changed()  argument
151 	if (WARN_ON(!led_cdev->brightness_hw_changed_kn))  in led_classdev_notify_brightness_hw_changed()
154 	led_cdev->brightness_hw_changed = brightness;  in led_classdev_notify_brightness_hw_changed()
155 	sysfs_notify_dirent(led_cdev->brightness_hw_changed_kn);  in led_classdev_notify_brightness_hw_changed()
159 static int led_add_brightness_hw_changed(struct led_classdev *led_cdev)  in led_add_brightness_hw_changed()  argument
163 static void led_remove_brightness_hw_changed(struct led_classdev *led_cdev)  in led_remove_brightness_hw_changed()  argument
172 void led_classdev_suspend(struct led_classdev *led_cdev)  in led_classdev_suspend()  argument
174 	led_cdev->flags |= LED_SUSPENDED;  in led_classdev_suspend()
175 	led_set_brightness_nopm(led_cdev, 0);  in led_classdev_suspend()
183 void led_classdev_resume(struct led_classdev *led_cdev)  in led_classdev_resume()  argument
185 	led_set_brightness_nopm(led_cdev, led_cdev->brightness);  in led_classdev_resume()
187 	if (led_cdev->flash_resume)  in led_classdev_resume()
188 		led_cdev->flash_resume(led_cdev);  in led_classdev_resume()
190 	led_cdev->flags &= ~LED_SUSPENDED;  in led_classdev_resume()
197 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_suspend()  local
199 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_suspend()
200 		led_classdev_suspend(led_cdev);  in led_suspend()
207 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_resume()  local
209 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_resume()
210 		led_classdev_resume(led_cdev);  in led_resume()
254 			    struct led_classdev *led_cdev)  in of_led_classdev_register()  argument
259 	ret = led_classdev_next_name(led_cdev->name, name, sizeof(name));  in of_led_classdev_register()
263 	mutex_init(&led_cdev->led_access);  in of_led_classdev_register()
264 	mutex_lock(&led_cdev->led_access);  in of_led_classdev_register()
265 	led_cdev->dev = device_create_with_groups(leds_class, parent, 0,  in of_led_classdev_register()
266 				led_cdev, led_cdev->groups, "%s", name);  in of_led_classdev_register()
267 	if (IS_ERR(led_cdev->dev)) {  in of_led_classdev_register()
268 		mutex_unlock(&led_cdev->led_access);  in of_led_classdev_register()
269 		return PTR_ERR(led_cdev->dev);  in of_led_classdev_register()
271 	led_cdev->dev->of_node = np;  in of_led_classdev_register()
275 				led_cdev->name, dev_name(led_cdev->dev));  in of_led_classdev_register()
277 	if (led_cdev->flags & LED_BRIGHT_HW_CHANGED) {  in of_led_classdev_register()
278 		ret = led_add_brightness_hw_changed(led_cdev);  in of_led_classdev_register()
280 			device_unregister(led_cdev->dev);  in of_led_classdev_register()
281 			mutex_unlock(&led_cdev->led_access);  in of_led_classdev_register()
286 	led_cdev->work_flags = 0;  in of_led_classdev_register()
288 	init_rwsem(&led_cdev->trigger_lock);  in of_led_classdev_register()
291 	led_cdev->brightness_hw_changed = -1;  in of_led_classdev_register()
295 	list_add_tail(&led_cdev->node, &leds_list);  in of_led_classdev_register()
298 	if (!led_cdev->max_brightness)  in of_led_classdev_register()
299 		led_cdev->max_brightness = LED_FULL;  in of_led_classdev_register()
301 	led_update_brightness(led_cdev);  in of_led_classdev_register()
303 	led_init_core(led_cdev);  in of_led_classdev_register()
306 	led_trigger_set_default(led_cdev);  in of_led_classdev_register()
309 	mutex_unlock(&led_cdev->led_access);  in of_led_classdev_register()
312 			led_cdev->name);  in of_led_classdev_register()
324 void led_classdev_unregister(struct led_classdev *led_cdev)  in led_classdev_unregister()  argument
327 	down_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
328 	if (led_cdev->trigger)  in led_classdev_unregister()
329 		led_trigger_set(led_cdev, NULL);  in led_classdev_unregister()
330 	up_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
333 	led_cdev->flags |= LED_UNREGISTERING;  in led_classdev_unregister()
336 	led_stop_software_blink(led_cdev);  in led_classdev_unregister()
338 	led_set_brightness(led_cdev, LED_OFF);  in led_classdev_unregister()
340 	flush_work(&led_cdev->set_brightness_work);  in led_classdev_unregister()
342 	if (led_cdev->flags & LED_BRIGHT_HW_CHANGED)  in led_classdev_unregister()
343 		led_remove_brightness_hw_changed(led_cdev);  in led_classdev_unregister()
345 	device_unregister(led_cdev->dev);  in led_classdev_unregister()
348 	list_del(&led_cdev->node);  in led_classdev_unregister()
351 	mutex_destroy(&led_cdev->led_access);  in led_classdev_unregister()
368 				  struct led_classdev *led_cdev)  in devm_of_led_classdev_register()  argument
377 	rc = of_led_classdev_register(parent, np, led_cdev);  in devm_of_led_classdev_register()
383 	*dr = led_cdev;  in devm_of_led_classdev_register()
392 	struct led_cdev **p = res;  in devm_led_classdev_match()
406 				  struct led_classdev *led_cdev)  in devm_led_classdev_unregister()  argument
410 			       devm_led_classdev_match, led_cdev));  in devm_led_classdev_unregister()