31 trigger_relevant(struct led_classdev *led_cdev, struct led_trigger *trig)  in trigger_relevant()  argument
33 	return !trig->trigger_type || trig->trigger_type == led_cdev->trigger_type;  in trigger_relevant()
41 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_trigger_write()  local
45 	mutex_lock(&led_cdev->led_access);  in led_trigger_write()
47 	if (led_sysfs_is_disabled(led_cdev)) {  in led_trigger_write()
53 		led_trigger_remove(led_cdev);  in led_trigger_write()
59 		if (sysfs_streq(buf, trig->name) && trigger_relevant(led_cdev, trig)) {  in led_trigger_write()
60 			down_write(&led_cdev->trigger_lock);  in led_trigger_write()
61 			led_trigger_set(led_cdev, trig);  in led_trigger_write()
62 			up_write(&led_cdev->trigger_lock);  in led_trigger_write()
73 	mutex_unlock(&led_cdev->led_access);  in led_trigger_write()
95 			      struct led_classdev *led_cdev)  in led_trigger_format()  argument
99 				       led_cdev->trigger ? "none" : "[none]");  in led_trigger_format()
104 		if (!trigger_relevant(led_cdev, trig))  in led_trigger_format()
107 		hit = led_cdev->trigger && !strcmp(led_cdev->trigger->name, trig->name);  in led_trigger_format()
130 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_trigger_read()  local
135 	down_read(&led_cdev->trigger_lock);  in led_trigger_read()
137 	len = led_trigger_format(NULL, 0, led_cdev);  in led_trigger_read()
140 		up_read(&led_cdev->trigger_lock);  in led_trigger_read()
144 	len = led_trigger_format(data, len + 1, led_cdev);  in led_trigger_read()
146 	up_read(&led_cdev->trigger_lock);  in led_trigger_read()
158 int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)  in led_trigger_set()  argument
165 	if (!led_cdev->trigger && !trig)  in led_trigger_set()
172 	if (led_cdev->trigger) {  in led_trigger_set()
173 		spin_lock(&led_cdev->trigger->leddev_list_lock);  in led_trigger_set()
174 		list_del_rcu(&led_cdev->trig_list);  in led_trigger_set()
175 		spin_unlock(&led_cdev->trigger->leddev_list_lock);  in led_trigger_set()
180 		cancel_work_sync(&led_cdev->set_brightness_work);  in led_trigger_set()
181 		led_stop_software_blink(led_cdev);  in led_trigger_set()
182 		device_remove_groups(led_cdev->dev, led_cdev->trigger->groups);  in led_trigger_set()
183 		if (led_cdev->trigger->deactivate)  in led_trigger_set()
184 			led_cdev->trigger->deactivate(led_cdev);  in led_trigger_set()
185 		led_cdev->trigger = NULL;  in led_trigger_set()
186 		led_cdev->trigger_data = NULL;  in led_trigger_set()
187 		led_cdev->activated = false;  in led_trigger_set()
188 		led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER;  in led_trigger_set()
189 		led_set_brightness(led_cdev, LED_OFF);  in led_trigger_set()
193 		list_add_tail_rcu(&led_cdev->trig_list, &trig->led_cdevs);  in led_trigger_set()
195 		led_cdev->trigger = trig;  in led_trigger_set()
208 		flush_work(&led_cdev->set_brightness_work);  in led_trigger_set()
212 			ret = trig->activate(led_cdev);  in led_trigger_set()
214 			led_set_brightness(led_cdev, trig->brightness);  in led_trigger_set()
218 		ret = device_add_groups(led_cdev->dev, trig->groups);  in led_trigger_set()
220 			dev_err(led_cdev->dev, "Failed to add trigger attributes\n");  in led_trigger_set()
228 		if (kobject_uevent_env(&led_cdev->dev->kobj, KOBJ_CHANGE, envp))  in led_trigger_set()
229 			dev_err(led_cdev->dev,  in led_trigger_set()
239 		trig->deactivate(led_cdev);  in led_trigger_set()
242 	spin_lock(&led_cdev->trigger->leddev_list_lock);  in led_trigger_set()
243 	list_del_rcu(&led_cdev->trig_list);  in led_trigger_set()
244 	spin_unlock(&led_cdev->trigger->leddev_list_lock);  in led_trigger_set()
246 	led_cdev->trigger = NULL;  in led_trigger_set()
247 	led_cdev->trigger_data = NULL;  in led_trigger_set()
248 	led_set_brightness(led_cdev, LED_OFF);  in led_trigger_set()
255 void led_trigger_remove(struct led_classdev *led_cdev)  in led_trigger_remove()  argument
257 	down_write(&led_cdev->trigger_lock);  in led_trigger_remove()
258 	led_trigger_set(led_cdev, NULL);  in led_trigger_remove()
259 	up_write(&led_cdev->trigger_lock);  in led_trigger_remove()
263 static bool led_match_default_trigger(struct led_classdev *led_cdev,  in led_match_default_trigger()  argument
266 	if (!strcmp(led_cdev->default_trigger, trig->name) &&  in led_match_default_trigger()
267 	    trigger_relevant(led_cdev, trig)) {  in led_match_default_trigger()
268 		led_cdev->flags |= LED_INIT_DEFAULT_TRIGGER;  in led_match_default_trigger()
269 		led_trigger_set(led_cdev, trig);  in led_match_default_trigger()
276 void led_trigger_set_default(struct led_classdev *led_cdev)  in led_trigger_set_default()  argument
281 	if (!led_cdev->default_trigger)  in led_trigger_set_default()
285 	down_write(&led_cdev->trigger_lock);  in led_trigger_set_default()
287 		found = led_match_default_trigger(led_cdev, trig);  in led_trigger_set_default()
291 	up_write(&led_cdev->trigger_lock);  in led_trigger_set_default()
299 		request_module_nowait("ledtrig:%s", led_cdev->default_trigger);  in led_trigger_set_default()
307 	struct led_classdev *led_cdev;  in led_trigger_register()  local
329 	list_for_each_entry(led_cdev, &leds_list, node) {  in led_trigger_register()
330 		down_write(&led_cdev->trigger_lock);  in led_trigger_register()
331 		if (!led_cdev->trigger && led_cdev->default_trigger)  in led_trigger_register()
332 			led_match_default_trigger(led_cdev, trig);  in led_trigger_register()
333 		up_write(&led_cdev->trigger_lock);  in led_trigger_register()
343 	struct led_classdev *led_cdev;  in led_trigger_unregister()  local
355 	list_for_each_entry(led_cdev, &leds_list, node) {  in led_trigger_unregister()
356 		down_write(&led_cdev->trigger_lock);  in led_trigger_unregister()
357 		if (led_cdev->trigger == trig)  in led_trigger_unregister()
358 			led_trigger_set(led_cdev, NULL);  in led_trigger_unregister()
359 		up_write(&led_cdev->trigger_lock);  in led_trigger_unregister()
398 	struct led_classdev *led_cdev;  in led_trigger_event()  local
406 	list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list)  in led_trigger_event()
407 		led_set_brightness(led_cdev, brightness);  in led_trigger_event()
416 	struct led_classdev *led_cdev;  in led_mc_trigger_event()  local
422 	list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list) {  in led_mc_trigger_event()
423 		if (!(led_cdev->flags & LED_MULTI_COLOR))  in led_mc_trigger_event()
426 		led_mc_set_brightness(led_cdev, intensity_value, num_colors, brightness);  in led_mc_trigger_event()
438 	struct led_classdev *led_cdev;  in led_trigger_blink_setup()  local
444 	list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list) {  in led_trigger_blink_setup()
446 			led_blink_set_oneshot(led_cdev, &delay_on, &delay_off,  in led_trigger_blink_setup()
449 			led_blink_set_nosleep(led_cdev, delay_on, delay_off);  in led_trigger_blink_setup()