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()
60 	flush_work(&led_cdev->set_brightness_work);  in brightness_store()
64 	mutex_unlock(&led_cdev->led_access);  in brightness_store()
72 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in max_brightness_show()  local
74 	return sprintf(buf, "%u\n", led_cdev->max_brightness);  in max_brightness_show()
82 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in color_show()  local
84 	if (led_cdev->color < LED_COLOR_ID_MAX)  in color_show()
85 		color_text = led_colors[led_cdev->color];  in color_show()
125 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in brightness_hw_changed_show()  local
127 	if (led_cdev->brightness_hw_changed == -1)  in brightness_hw_changed_show()
130 	return sprintf(buf, "%u\n", led_cdev->brightness_hw_changed);  in brightness_hw_changed_show()
135 static int led_add_brightness_hw_changed(struct led_classdev *led_cdev)  in led_add_brightness_hw_changed()  argument
137 	struct device *dev = led_cdev->dev;  in led_add_brightness_hw_changed()
146 	led_cdev->brightness_hw_changed_kn =  in led_add_brightness_hw_changed()
148 	if (!led_cdev->brightness_hw_changed_kn) {  in led_add_brightness_hw_changed()
157 static void led_remove_brightness_hw_changed(struct led_classdev *led_cdev)  in led_remove_brightness_hw_changed()  argument
159 	sysfs_put(led_cdev->brightness_hw_changed_kn);  in led_remove_brightness_hw_changed()
160 	device_remove_file(led_cdev->dev, &dev_attr_brightness_hw_changed);  in led_remove_brightness_hw_changed()
163 void led_classdev_notify_brightness_hw_changed(struct led_classdev *led_cdev, unsigned int brightne…  in led_classdev_notify_brightness_hw_changed()  argument
165 	if (WARN_ON(!led_cdev->brightness_hw_changed_kn))  in led_classdev_notify_brightness_hw_changed()
168 	led_cdev->brightness_hw_changed = brightness;  in led_classdev_notify_brightness_hw_changed()
169 	sysfs_notify_dirent(led_cdev->brightness_hw_changed_kn);  in led_classdev_notify_brightness_hw_changed()
173 static int led_add_brightness_hw_changed(struct led_classdev *led_cdev)  in led_add_brightness_hw_changed()  argument
177 static void led_remove_brightness_hw_changed(struct led_classdev *led_cdev)  in led_remove_brightness_hw_changed()  argument
186 void led_classdev_suspend(struct led_classdev *led_cdev)  in led_classdev_suspend()  argument
188 	led_cdev->flags |= LED_SUSPENDED;  in led_classdev_suspend()
189 	led_set_brightness_nopm(led_cdev, 0);  in led_classdev_suspend()
190 	flush_work(&led_cdev->set_brightness_work);  in led_classdev_suspend()
198 void led_classdev_resume(struct led_classdev *led_cdev)  in led_classdev_resume()  argument
200 	led_set_brightness_nopm(led_cdev, led_cdev->brightness);  in led_classdev_resume()
202 	if (led_cdev->flash_resume)  in led_classdev_resume()
203 		led_cdev->flash_resume(led_cdev);  in led_classdev_resume()
205 	led_cdev->flags &= ~LED_SUSPENDED;  in led_classdev_resume()
212 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_suspend()  local
214 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_suspend()
215 		led_classdev_suspend(led_cdev);  in led_suspend()
222 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_resume()  local
224 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_resume()
225 		led_classdev_resume(led_cdev);  in led_resume()
235 	struct led_classdev *led_cdev;  in led_module_get()  local
240 	led_cdev = dev_get_drvdata(led_dev);  in led_module_get()
242 	if (!try_module_get(led_cdev->dev->parent->driver->owner)) {  in led_module_get()
243 		put_device(led_cdev->dev);  in led_module_get()
247 	return led_cdev;  in led_module_get()
285 void led_put(struct led_classdev *led_cdev)  in led_put()  argument
287 	module_put(led_cdev->dev->parent->driver->owner);  in led_put()
288 	put_device(led_cdev->dev);  in led_put()
479 			      struct led_classdev *led_cdev,  in led_classdev_register_ext()  argument
499 				&led_cdev->default_trigger);  in led_classdev_register_ext()
503 				led_cdev->flags |= LED_RETAIN_AT_SHUTDOWN;  in led_classdev_register_ext()
507 				&led_cdev->max_brightness);  in led_classdev_register_ext()
511 							 &led_cdev->color);  in led_classdev_register_ext()
514 		proposed_name = led_cdev->name;  in led_classdev_register_ext()
521 	if (led_cdev->color >= LED_COLOR_ID_MAX)  in led_classdev_register_ext()
524 	mutex_init(&led_cdev->led_access);  in led_classdev_register_ext()
525 	mutex_lock(&led_cdev->led_access);  in led_classdev_register_ext()
526 	led_cdev->dev = device_create_with_groups(&leds_class, parent, 0,  in led_classdev_register_ext()
527 						  led_cdev, led_cdev->groups, "%s", final_name);  in led_classdev_register_ext()
528 	if (IS_ERR(led_cdev->dev)) {  in led_classdev_register_ext()
529 		mutex_unlock(&led_cdev->led_access);  in led_classdev_register_ext()
530 		return PTR_ERR(led_cdev->dev);  in led_classdev_register_ext()
533 		device_set_node(led_cdev->dev, init_data->fwnode);  in led_classdev_register_ext()
537 				proposed_name, dev_name(led_cdev->dev));  in led_classdev_register_ext()
539 	if (led_cdev->flags & LED_BRIGHT_HW_CHANGED) {  in led_classdev_register_ext()
540 		ret = led_add_brightness_hw_changed(led_cdev);  in led_classdev_register_ext()
542 			device_unregister(led_cdev->dev);  in led_classdev_register_ext()
543 			led_cdev->dev = NULL;  in led_classdev_register_ext()
544 			mutex_unlock(&led_cdev->led_access);  in led_classdev_register_ext()
549 	led_cdev->work_flags = 0;  in led_classdev_register_ext()
551 	init_rwsem(&led_cdev->trigger_lock);  in led_classdev_register_ext()
554 	led_cdev->brightness_hw_changed = -1;  in led_classdev_register_ext()
558 	list_add_tail(&led_cdev->node, &leds_list);  in led_classdev_register_ext()
561 	if (!led_cdev->max_brightness)  in led_classdev_register_ext()
562 		led_cdev->max_brightness = LED_FULL;  in led_classdev_register_ext()
564 	led_update_brightness(led_cdev);  in led_classdev_register_ext()
566 	led_init_core(led_cdev);  in led_classdev_register_ext()
569 	led_trigger_set_default(led_cdev);  in led_classdev_register_ext()
572 	mutex_unlock(&led_cdev->led_access);  in led_classdev_register_ext()
575 			led_cdev->name);  in led_classdev_register_ext()
587 void led_classdev_unregister(struct led_classdev *led_cdev)  in led_classdev_unregister()  argument
589 	if (IS_ERR_OR_NULL(led_cdev->dev))  in led_classdev_unregister()
593 	down_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
594 	if (led_cdev->trigger)  in led_classdev_unregister()
595 		led_trigger_set(led_cdev, NULL);  in led_classdev_unregister()
596 	up_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
599 	led_cdev->flags |= LED_UNREGISTERING;  in led_classdev_unregister()
602 	led_stop_software_blink(led_cdev);  in led_classdev_unregister()
604 	if (!(led_cdev->flags & LED_RETAIN_AT_SHUTDOWN))  in led_classdev_unregister()
605 		led_set_brightness(led_cdev, LED_OFF);  in led_classdev_unregister()
607 	flush_work(&led_cdev->set_brightness_work);  in led_classdev_unregister()
609 	if (led_cdev->flags & LED_BRIGHT_HW_CHANGED)  in led_classdev_unregister()
610 		led_remove_brightness_hw_changed(led_cdev);  in led_classdev_unregister()
612 	device_unregister(led_cdev->dev);  in led_classdev_unregister()
615 	list_del(&led_cdev->node);  in led_classdev_unregister()
618 	mutex_destroy(&led_cdev->led_access);  in led_classdev_unregister()
635 				   struct led_classdev *led_cdev,  in devm_led_classdev_register_ext()  argument
645 	rc = led_classdev_register_ext(parent, led_cdev, init_data);  in devm_led_classdev_register_ext()
651 	*dr = led_cdev;  in devm_led_classdev_register_ext()
674 				  struct led_classdev *led_cdev)  in devm_led_classdev_unregister()  argument
678 			       devm_led_classdev_match, led_cdev));  in devm_led_classdev_unregister()