42 static int __led_set_brightness(struct led_classdev *led_cdev,  in __led_set_brightness()  argument
45 	if (!led_cdev->brightness_set)  in __led_set_brightness()
48 	led_cdev->brightness_set(led_cdev, value);  in __led_set_brightness()
53 static int __led_set_brightness_blocking(struct led_classdev *led_cdev,  in __led_set_brightness_blocking()  argument
56 	if (!led_cdev->brightness_set_blocking)  in __led_set_brightness_blocking()
59 	return led_cdev->brightness_set_blocking(led_cdev, value);  in __led_set_brightness_blocking()
64 	struct led_classdev *led_cdev = from_timer(led_cdev, t, blink_timer);  in led_timer_function()  local
68 	if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {  in led_timer_function()
69 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_timer_function()
70 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
75 			       &led_cdev->work_flags)) {  in led_timer_function()
76 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
80 	brightness = led_get_brightness(led_cdev);  in led_timer_function()
84 					&led_cdev->work_flags))  in led_timer_function()
85 			brightness = led_cdev->new_blink_brightness;  in led_timer_function()
87 			brightness = led_cdev->blink_brightness;  in led_timer_function()
88 		delay = led_cdev->blink_delay_on;  in led_timer_function()
93 		led_cdev->blink_brightness = brightness;  in led_timer_function()
95 		delay = led_cdev->blink_delay_off;  in led_timer_function()
98 	led_set_brightness_nosleep(led_cdev, brightness);  in led_timer_function()
104 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags)) {  in led_timer_function()
105 		if (test_bit(LED_BLINK_INVERT, &led_cdev->work_flags)) {  in led_timer_function()
108 					&led_cdev->work_flags);  in led_timer_function()
112 					&led_cdev->work_flags);  in led_timer_function()
116 	mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));  in led_timer_function()
121 	struct led_classdev *led_cdev =  in set_brightness_delayed()  local
125 	if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) {  in set_brightness_delayed()
126 		led_cdev->delayed_set_value = LED_OFF;  in set_brightness_delayed()
127 		led_stop_software_blink(led_cdev);  in set_brightness_delayed()
130 	ret = __led_set_brightness(led_cdev, led_cdev->delayed_set_value);  in set_brightness_delayed()
132 		ret = __led_set_brightness_blocking(led_cdev,  in set_brightness_delayed()
133 					led_cdev->delayed_set_value);  in set_brightness_delayed()
136 	    !(ret == -ENODEV && (led_cdev->flags & LED_UNREGISTERING) &&  in set_brightness_delayed()
137 	    (led_cdev->flags & LED_HW_PLUGGABLE)))  in set_brightness_delayed()
138 		dev_err(led_cdev->dev,  in set_brightness_delayed()
142 static void led_set_software_blink(struct led_classdev *led_cdev,  in led_set_software_blink()  argument
148 	current_brightness = led_get_brightness(led_cdev);  in led_set_software_blink()
150 		led_cdev->blink_brightness = current_brightness;  in led_set_software_blink()
151 	if (!led_cdev->blink_brightness)  in led_set_software_blink()
152 		led_cdev->blink_brightness = led_cdev->max_brightness;  in led_set_software_blink()
154 	led_cdev->blink_delay_on = delay_on;  in led_set_software_blink()
155 	led_cdev->blink_delay_off = delay_off;  in led_set_software_blink()
159 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_set_software_blink()
165 		led_set_brightness_nosleep(led_cdev,  in led_set_software_blink()
166 					   led_cdev->blink_brightness);  in led_set_software_blink()
170 	set_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_set_software_blink()
171 	mod_timer(&led_cdev->blink_timer, jiffies + 1);  in led_set_software_blink()
175 static void led_blink_setup(struct led_classdev *led_cdev,  in led_blink_setup()  argument
179 	if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_setup()
180 	    led_cdev->blink_set &&  in led_blink_setup()
181 	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))  in led_blink_setup()
188 	led_set_software_blink(led_cdev, *delay_on, *delay_off);  in led_blink_setup()
191 void led_init_core(struct led_classdev *led_cdev)  in led_init_core()  argument
193 	INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);  in led_init_core()
195 	timer_setup(&led_cdev->blink_timer, led_timer_function, 0);  in led_init_core()
199 void led_blink_set(struct led_classdev *led_cdev,  in led_blink_set()  argument
203 	del_timer_sync(&led_cdev->blink_timer);  in led_blink_set()
205 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_blink_set()
206 	clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set()
207 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set()
209 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set()
213 void led_blink_set_oneshot(struct led_classdev *led_cdev,  in led_blink_set_oneshot()  argument
218 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_set_oneshot()
219 	     timer_pending(&led_cdev->blink_timer))  in led_blink_set_oneshot()
222 	set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set_oneshot()
223 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set_oneshot()
226 		set_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
228 		clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
230 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set_oneshot()
234 void led_stop_software_blink(struct led_classdev *led_cdev)  in led_stop_software_blink()  argument
236 	del_timer_sync(&led_cdev->blink_timer);  in led_stop_software_blink()
237 	led_cdev->blink_delay_on = 0;  in led_stop_software_blink()
238 	led_cdev->blink_delay_off = 0;  in led_stop_software_blink()
239 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_stop_software_blink()
243 void led_set_brightness(struct led_classdev *led_cdev,  in led_set_brightness()  argument
250 	if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) {  in led_set_brightness()
257 			set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags);  in led_set_brightness()
258 			schedule_work(&led_cdev->set_brightness_work);  in led_set_brightness()
261 				&led_cdev->work_flags);  in led_set_brightness()
262 			led_cdev->new_blink_brightness = brightness;  in led_set_brightness()
267 	led_set_brightness_nosleep(led_cdev, brightness);  in led_set_brightness()
271 void led_set_brightness_nopm(struct led_classdev *led_cdev,  in led_set_brightness_nopm()  argument
275 	if (!__led_set_brightness(led_cdev, value))  in led_set_brightness_nopm()
279 	led_cdev->delayed_set_value = value;  in led_set_brightness_nopm()
280 	schedule_work(&led_cdev->set_brightness_work);  in led_set_brightness_nopm()
284 void led_set_brightness_nosleep(struct led_classdev *led_cdev,  in led_set_brightness_nosleep()  argument
287 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_nosleep()
289 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_nosleep()
292 	led_set_brightness_nopm(led_cdev, led_cdev->brightness);  in led_set_brightness_nosleep()
296 int led_set_brightness_sync(struct led_classdev *led_cdev,  in led_set_brightness_sync()  argument
299 	if (led_cdev->blink_delay_on || led_cdev->blink_delay_off)  in led_set_brightness_sync()
302 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_sync()
304 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_sync()
307 	return __led_set_brightness_blocking(led_cdev, led_cdev->brightness);  in led_set_brightness_sync()
311 int led_update_brightness(struct led_classdev *led_cdev)  in led_update_brightness()  argument
315 	if (led_cdev->brightness_get) {  in led_update_brightness()
316 		ret = led_cdev->brightness_get(led_cdev);  in led_update_brightness()
318 			led_cdev->brightness = ret;  in led_update_brightness()
327 u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size)  in led_get_default_pattern()  argument
329 	struct fwnode_handle *fwnode = led_cdev->dev->fwnode;  in led_get_default_pattern()
353 void led_sysfs_disable(struct led_classdev *led_cdev)  in led_sysfs_disable()  argument
355 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_disable()
357 	led_cdev->flags |= LED_SYSFS_DISABLE;  in led_sysfs_disable()
362 void led_sysfs_enable(struct led_classdev *led_cdev)  in led_sysfs_enable()  argument
364 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_enable()
366 	led_cdev->flags &= ~LED_SYSFS_DISABLE;  in led_sysfs_enable()