66 static void rt8515_gpio_led_off(struct rt8515 *rt)  in rt8515_gpio_led_off()  argument
68 	gpiod_set_value(rt->enable_flash, 0);  in rt8515_gpio_led_off()
69 	gpiod_set_value(rt->enable_torch, 0);  in rt8515_gpio_led_off()
94 	struct rt8515 *rt = to_rt8515(fled);  in rt8515_led_brightness_set()  local
96 	mutex_lock(&rt->lock);  in rt8515_led_brightness_set()
100 		rt8515_gpio_led_off(rt);  in rt8515_led_brightness_set()
103 		rt8515_gpio_brightness_commit(rt->enable_torch, brightness);  in rt8515_led_brightness_set()
106 		gpiod_set_value(rt->enable_torch, 1);  in rt8515_led_brightness_set()
109 	mutex_unlock(&rt->lock);  in rt8515_led_brightness_set()
117 	struct rt8515 *rt = to_rt8515(fled);  in rt8515_led_flash_strobe_set()  local
119 	int brightness = rt->flash_max_intensity;  in rt8515_led_flash_strobe_set()
121 	mutex_lock(&rt->lock);  in rt8515_led_flash_strobe_set()
125 		rt8515_gpio_brightness_commit(rt->enable_flash, brightness);  in rt8515_led_flash_strobe_set()
127 		mod_timer(&rt->powerdown_timer,  in rt8515_led_flash_strobe_set()
130 		del_timer_sync(&rt->powerdown_timer);  in rt8515_led_flash_strobe_set()
132 		rt8515_gpio_led_off(rt);  in rt8515_led_flash_strobe_set()
138 	mutex_unlock(&rt->lock);  in rt8515_led_flash_strobe_set()
146 	struct rt8515 *rt = to_rt8515(fled);  in rt8515_led_flash_strobe_get()  local
148 	*state = timer_pending(&rt->powerdown_timer);  in rt8515_led_flash_strobe_get()
168 	struct rt8515 *rt = from_timer(rt, t, powerdown_timer);  in rt8515_powerdown_timer()  local
171 	rt8515_gpio_led_off(rt);  in rt8515_powerdown_timer()
174 static void rt8515_init_flash_timeout(struct rt8515 *rt)  in rt8515_init_flash_timeout()  argument
176 	struct led_classdev_flash *fled = &rt->fled;  in rt8515_init_flash_timeout()
182 	s->max = rt->max_timeout;  in rt8515_init_flash_timeout()
188 	s->val = min(rt->max_timeout, RT8515_TIMEOUT_US);  in rt8515_init_flash_timeout()
193 static void rt8515_init_v4l2_flash_config(struct rt8515 *rt,  in rt8515_init_v4l2_flash_config()  argument
196 	struct led_classdev *led = &rt->fled.led_cdev;  in rt8515_init_v4l2_flash_config()
209 	s->max = rt->flash_max_intensity;  in rt8515_init_v4l2_flash_config()
214 static void rt8515_v4l2_flash_release(struct rt8515 *rt)  in rt8515_v4l2_flash_release()  argument
216 	v4l2_flash_release(rt->v4l2_flash);  in rt8515_v4l2_flash_release()
220 static void rt8515_init_v4l2_flash_config(struct rt8515 *rt,  in rt8515_init_v4l2_flash_config()  argument
225 static void rt8515_v4l2_flash_release(struct rt8515 *rt)  in rt8515_v4l2_flash_release()  argument
230 static void rt8515_determine_max_intensity(struct rt8515 *rt,  in rt8515_determine_max_intensity()  argument
242 	fwnode_property_read_u32(rt->dev->fwnode, resistance, &res);  in rt8515_determine_max_intensity()
247 		dev_err(rt->dev,  in rt8515_determine_max_intensity()
266 	dev_info(rt->dev,  in rt8515_determine_max_intensity()
271 	dev_info(rt->dev, "max intensity %d/%d = %d mA\n",  in rt8515_determine_max_intensity()
280 	struct rt8515 *rt;  in rt8515_probe()  local
287 	rt = devm_kzalloc(dev, sizeof(*rt), GFP_KERNEL);  in rt8515_probe()
288 	if (!rt)  in rt8515_probe()
291 	rt->dev = dev;  in rt8515_probe()
292 	fled = &rt->fled;  in rt8515_probe()
296 	rt->enable_flash = devm_gpiod_get(dev, "enf", GPIOD_OUT_LOW);  in rt8515_probe()
297 	if (IS_ERR(rt->enable_flash))  in rt8515_probe()
298 		return dev_err_probe(dev, PTR_ERR(rt->enable_flash),  in rt8515_probe()
302 	rt->enable_torch = devm_gpiod_get(dev, "ent", GPIOD_OUT_LOW);  in rt8515_probe()
303 	if (IS_ERR(rt->enable_torch))  in rt8515_probe()
304 		return dev_err_probe(dev, PTR_ERR(rt->enable_torch),  in rt8515_probe()
315 	rt8515_determine_max_intensity(rt, child, "richtek,rfs-ohms",  in rt8515_probe()
318 				       &rt->flash_max_intensity);  in rt8515_probe()
319 	rt8515_determine_max_intensity(rt, child, "richtek,rts-ohms",  in rt8515_probe()
322 				       &rt->torch_max_intensity);  in rt8515_probe()
325 				       &rt->max_timeout);  in rt8515_probe()
327 		rt->max_timeout = RT8515_MAX_TIMEOUT_US;  in rt8515_probe()
331 	timer_setup(&rt->powerdown_timer, rt8515_powerdown_timer, 0);  in rt8515_probe()
332 	rt8515_init_flash_timeout(rt);  in rt8515_probe()
336 	led->max_brightness = rt->torch_max_intensity;  in rt8515_probe()
340 	mutex_init(&rt->lock);  in rt8515_probe()
342 	platform_set_drvdata(pdev, rt);  in rt8515_probe()
347 		mutex_destroy(&rt->lock);  in rt8515_probe()
352 	rt8515_init_v4l2_flash_config(rt, &v4l2_sd_cfg);  in rt8515_probe()
355 	rt->v4l2_flash = v4l2_flash_init(dev, child, fled, NULL, &v4l2_sd_cfg);  in rt8515_probe()
356 	if (IS_ERR(rt->v4l2_flash)) {  in rt8515_probe()
357 		ret = PTR_ERR(rt->v4l2_flash);  in rt8515_probe()
372 	struct rt8515 *rt = platform_get_drvdata(pdev);  in rt8515_remove()  local
374 	rt8515_v4l2_flash_release(rt);  in rt8515_remove()
375 	del_timer_sync(&rt->powerdown_timer);  in rt8515_remove()
376 	mutex_destroy(&rt->lock);  in rt8515_remove()