47 static int __led_set_brightness(struct led_classdev *led_cdev, unsigned int value)  in __led_set_brightness()  argument
49 	if (!led_cdev->brightness_set)  in __led_set_brightness()
52 	led_cdev->brightness_set(led_cdev, value);  in __led_set_brightness()
57 static int __led_set_brightness_blocking(struct led_classdev *led_cdev, unsigned int value)  in __led_set_brightness_blocking()  argument
59 	if (!led_cdev->brightness_set_blocking)  in __led_set_brightness_blocking()
62 	return led_cdev->brightness_set_blocking(led_cdev, value);  in __led_set_brightness_blocking()
67 	struct led_classdev *led_cdev = timer_container_of(led_cdev, t,  in led_timer_function()  local
72 	if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {  in led_timer_function()
73 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_timer_function()
74 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
79 			       &led_cdev->work_flags)) {  in led_timer_function()
80 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
84 	brightness = led_get_brightness(led_cdev);  in led_timer_function()
88 					&led_cdev->work_flags))  in led_timer_function()
89 			brightness = led_cdev->new_blink_brightness;  in led_timer_function()
91 			brightness = led_cdev->blink_brightness;  in led_timer_function()
92 		delay = led_cdev->blink_delay_on;  in led_timer_function()
97 		led_cdev->blink_brightness = brightness;  in led_timer_function()
99 		delay = led_cdev->blink_delay_off;  in led_timer_function()
102 	led_set_brightness_nosleep(led_cdev, brightness);  in led_timer_function()
108 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags)) {  in led_timer_function()
109 		if (test_bit(LED_BLINK_INVERT, &led_cdev->work_flags)) {  in led_timer_function()
112 					&led_cdev->work_flags);  in led_timer_function()
116 					&led_cdev->work_flags);  in led_timer_function()
120 	mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));  in led_timer_function()
123 static void set_brightness_delayed_set_brightness(struct led_classdev *led_cdev,  in set_brightness_delayed_set_brightness()  argument
128 	ret = __led_set_brightness(led_cdev, value);  in set_brightness_delayed_set_brightness()
130 		ret = __led_set_brightness_blocking(led_cdev, value);  in set_brightness_delayed_set_brightness()
137 	if (ret == -ENODEV && led_cdev->flags & LED_UNREGISTERING &&  in set_brightness_delayed_set_brightness()
138 	    led_cdev->flags & LED_HW_PLUGGABLE)  in set_brightness_delayed_set_brightness()
142 		dev_err(led_cdev->dev,  in set_brightness_delayed_set_brightness()
148 	struct led_classdev *led_cdev =  in set_brightness_delayed()  local
151 	if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) {  in set_brightness_delayed()
152 		led_stop_software_blink(led_cdev);  in set_brightness_delayed()
153 		set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags);  in set_brightness_delayed()
163 	if (test_and_clear_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags)) {  in set_brightness_delayed()
164 		set_brightness_delayed_set_brightness(led_cdev, LED_OFF);  in set_brightness_delayed()
173 		if (led_cdev->delayed_set_value != LED_OFF)  in set_brightness_delayed()
174 			set_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags);  in set_brightness_delayed()
177 	if (test_and_clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags))  in set_brightness_delayed()
178 		set_brightness_delayed_set_brightness(led_cdev, led_cdev->delayed_set_value);  in set_brightness_delayed()
180 	if (test_and_clear_bit(LED_SET_BLINK, &led_cdev->work_flags)) {  in set_brightness_delayed()
181 		unsigned long delay_on = led_cdev->delayed_delay_on;  in set_brightness_delayed()
182 		unsigned long delay_off = led_cdev->delayed_delay_off;  in set_brightness_delayed()
184 		led_blink_set(led_cdev, &delay_on, &delay_off);  in set_brightness_delayed()
188 static void led_set_software_blink(struct led_classdev *led_cdev,  in led_set_software_blink()  argument
194 	current_brightness = led_get_brightness(led_cdev);  in led_set_software_blink()
196 		led_cdev->blink_brightness = current_brightness;  in led_set_software_blink()
197 	if (!led_cdev->blink_brightness)  in led_set_software_blink()
198 		led_cdev->blink_brightness = led_cdev->max_brightness;  in led_set_software_blink()
200 	led_cdev->blink_delay_on = delay_on;  in led_set_software_blink()
201 	led_cdev->blink_delay_off = delay_off;  in led_set_software_blink()
205 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_set_software_blink()
211 		led_set_brightness_nosleep(led_cdev,  in led_set_software_blink()
212 					   led_cdev->blink_brightness);  in led_set_software_blink()
216 	set_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_set_software_blink()
217 	mod_timer(&led_cdev->blink_timer, jiffies + 1);  in led_set_software_blink()
221 static void led_blink_setup(struct led_classdev *led_cdev,  in led_blink_setup()  argument
225 	if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_setup()
226 	    led_cdev->blink_set &&  in led_blink_setup()
227 	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))  in led_blink_setup()
234 	led_set_software_blink(led_cdev, *delay_on, *delay_off);  in led_blink_setup()
237 void led_init_core(struct led_classdev *led_cdev)  in led_init_core()  argument
239 	INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);  in led_init_core()
241 	timer_setup(&led_cdev->blink_timer, led_timer_function, 0);  in led_init_core()
245 void led_blink_set(struct led_classdev *led_cdev,  in led_blink_set()  argument
249 	timer_delete_sync(&led_cdev->blink_timer);  in led_blink_set()
251 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_blink_set()
252 	clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set()
253 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set()
255 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set()
259 void led_blink_set_oneshot(struct led_classdev *led_cdev,  in led_blink_set_oneshot()  argument
264 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_set_oneshot()
265 	     timer_pending(&led_cdev->blink_timer))  in led_blink_set_oneshot()
268 	set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set_oneshot()
269 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set_oneshot()
272 		set_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
274 		clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
276 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set_oneshot()
280 void led_blink_set_nosleep(struct led_classdev *led_cdev, unsigned long delay_on,  in led_blink_set_nosleep()  argument
284 	if (led_cdev->blink_set && led_cdev->brightness_set_blocking) {  in led_blink_set_nosleep()
285 		led_cdev->delayed_delay_on = delay_on;  in led_blink_set_nosleep()
286 		led_cdev->delayed_delay_off = delay_off;  in led_blink_set_nosleep()
287 		set_bit(LED_SET_BLINK, &led_cdev->work_flags);  in led_blink_set_nosleep()
288 		queue_work(led_cdev->wq, &led_cdev->set_brightness_work);  in led_blink_set_nosleep()
292 	led_blink_set(led_cdev, &delay_on, &delay_off);  in led_blink_set_nosleep()
296 void led_stop_software_blink(struct led_classdev *led_cdev)  in led_stop_software_blink()  argument
298 	timer_delete_sync(&led_cdev->blink_timer);  in led_stop_software_blink()
299 	led_cdev->blink_delay_on = 0;  in led_stop_software_blink()
300 	led_cdev->blink_delay_off = 0;  in led_stop_software_blink()
301 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_stop_software_blink()
305 void led_set_brightness(struct led_classdev *led_cdev, unsigned int brightness)  in led_set_brightness()  argument
311 	if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) {  in led_set_brightness()
318 			set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags);  in led_set_brightness()
319 			queue_work(led_cdev->wq, &led_cdev->set_brightness_work);  in led_set_brightness()
322 				&led_cdev->work_flags);  in led_set_brightness()
323 			led_cdev->new_blink_brightness = brightness;  in led_set_brightness()
328 	led_set_brightness_nosleep(led_cdev, brightness);  in led_set_brightness()
332 void led_set_brightness_nopm(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_nopm()  argument
335 	if (!__led_set_brightness(led_cdev, value))  in led_set_brightness_nopm()
346 	led_cdev->delayed_set_value = value;  in led_set_brightness_nopm()
351 		set_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags);  in led_set_brightness_nopm()
353 		clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags);  in led_set_brightness_nopm()
354 		clear_bit(LED_SET_BLINK, &led_cdev->work_flags);  in led_set_brightness_nopm()
355 		set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags);  in led_set_brightness_nopm()
358 	queue_work(led_cdev->wq, &led_cdev->set_brightness_work);  in led_set_brightness_nopm()
362 void led_set_brightness_nosleep(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_nosleep()  argument
364 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_nosleep()
366 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_nosleep()
369 	led_set_brightness_nopm(led_cdev, led_cdev->brightness);  in led_set_brightness_nosleep()
373 int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_sync()  argument
375 	if (led_cdev->blink_delay_on || led_cdev->blink_delay_off)  in led_set_brightness_sync()
378 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_sync()
380 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_sync()
383 	return __led_set_brightness_blocking(led_cdev, led_cdev->brightness);  in led_set_brightness_sync()
391 void led_mc_set_brightness(struct led_classdev *led_cdev,  in led_mc_set_brightness()  argument
398 	if (!(led_cdev->flags & LED_MULTI_COLOR)) {  in led_mc_set_brightness()
399 		dev_err_once(led_cdev->dev, "error not a multi-color LED\n");  in led_mc_set_brightness()
403 	mcled_cdev = lcdev_to_mccdev(led_cdev);  in led_mc_set_brightness()
405 		dev_err_once(led_cdev->dev, "error num_colors mismatch %u != %u\n",  in led_mc_set_brightness()
413 	led_set_brightness(led_cdev, brightness);  in led_mc_set_brightness()
417 int led_update_brightness(struct led_classdev *led_cdev)  in led_update_brightness()  argument
421 	if (led_cdev->brightness_get) {  in led_update_brightness()
422 		ret = led_cdev->brightness_get(led_cdev);  in led_update_brightness()
426 		led_cdev->brightness = ret;  in led_update_brightness()
433 u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size)  in led_get_default_pattern()  argument
435 	struct fwnode_handle *fwnode = led_cdev->dev->fwnode;  in led_get_default_pattern()
459 void led_sysfs_disable(struct led_classdev *led_cdev)  in led_sysfs_disable()  argument
461 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_disable()
463 	led_cdev->flags |= LED_SYSFS_DISABLE;  in led_sysfs_disable()
468 void led_sysfs_enable(struct led_classdev *led_cdev)  in led_sysfs_enable()  argument
470 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_enable()
472 	led_cdev->flags &= ~LED_SYSFS_DISABLE;  in led_sysfs_enable()