1 // SPDX-License-Identifier: GPL-2.0-only
49 	if (led_dat->blinking) {  in gpio_led_set()
50 		led_dat->platform_gpio_blink_set(led_dat->gpiod, level,  in gpio_led_set()
52 		led_dat->blinking = 0;  in gpio_led_set()
54 		if (led_dat->can_sleep)  in gpio_led_set()
55 			gpiod_set_value_cansleep(led_dat->gpiod, level);  in gpio_led_set()
57 			gpiod_set_value(led_dat->gpiod, level);  in gpio_led_set()
73 	led_dat->blinking = 1;  in gpio_blink_set()
74 	return led_dat->platform_gpio_blink_set(led_dat->gpiod, GPIO_LED_BLINK,  in gpio_blink_set()
84 	int ret, state;  in create_gpio_led()  local
86 	led_dat->cdev.default_trigger = template->default_trigger;  in create_gpio_led()
87 	led_dat->can_sleep = gpiod_cansleep(led_dat->gpiod);  in create_gpio_led()
88 	if (!led_dat->can_sleep)  in create_gpio_led()
89 		led_dat->cdev.brightness_set = gpio_led_set;  in create_gpio_led()
91 		led_dat->cdev.brightness_set_blocking = gpio_led_set_blocking;  in create_gpio_led()
92 	led_dat->blinking = 0;  in create_gpio_led()
94 		led_dat->platform_gpio_blink_set = blink_set;  in create_gpio_led()
95 		led_dat->cdev.blink_set = gpio_blink_set;  in create_gpio_led()
97 	if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) {  in create_gpio_led()
98 		state = gpiod_get_value_cansleep(led_dat->gpiod);  in create_gpio_led()
99 		if (state < 0)  in create_gpio_led()
100 			return state;  in create_gpio_led()
102 		state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);  in create_gpio_led()
104 	led_dat->cdev.brightness = state;  in create_gpio_led()
105 	led_dat->cdev.max_brightness = 1;  in create_gpio_led()
106 	if (!template->retain_state_suspended)  in create_gpio_led()
107 		led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;  in create_gpio_led()
108 	if (template->panic_indicator)  in create_gpio_led()
109 		led_dat->cdev.flags |= LED_PANIC_INDICATOR;  in create_gpio_led()
110 	if (template->retain_state_shutdown)  in create_gpio_led()
111 		led_dat->cdev.flags |= LED_RETAIN_AT_SHUTDOWN;  in create_gpio_led()
113 	ret = gpiod_direction_output(led_dat->gpiod, state);  in create_gpio_led()
117 	if (template->name) {  in create_gpio_led()
118 		led_dat->cdev.name = template->name;  in create_gpio_led()
119 		ret = devm_led_classdev_register(parent, &led_dat->cdev);  in create_gpio_led()
122 		ret = devm_led_classdev_register_ext(parent, &led_dat->cdev,  in create_gpio_led()
129 	pinctrl = devm_pinctrl_get_select_default(led_dat->cdev.dev);  in create_gpio_led()
131 	/* pinctrl-%d not present, not an error */  in create_gpio_led()
132 	if (ret == -ENODEV)  in create_gpio_led()
135 		dev_warn(led_dat->cdev.dev, "Failed to select %pfw pinctrl: %d\n",  in create_gpio_led()
154 		return ERR_PTR(-ENODEV);  in gpio_leds_create()
158 		return ERR_PTR(-ENOMEM);  in gpio_leds_create()
159 	priv->num_leds = count;  in gpio_leds_create()
163 		struct gpio_led_data *led_dat = &priv->leds[used];  in gpio_leds_create()
179 		led_dat->gpiod = led.gpiod;  in gpio_leds_create()
183 		if (fwnode_property_present(child, "retain-state-suspended"))  in gpio_leds_create()
185 		if (fwnode_property_present(child, "retain-state-shutdown"))  in gpio_leds_create()
187 		if (fwnode_property_present(child, "panic-indicator"))  in gpio_leds_create()
195 		gpiod_set_consumer_name(led_dat->gpiod,  in gpio_leds_create()
196 					led_dat->cdev.dev->kobj.name);  in gpio_leds_create()
199 	priv->num_leds = used;  in gpio_leds_create()
205 	{ .compatible = "gpio-leds", },
227 		gpiod_set_consumer_name(gpiod, template->name);  in gpio_led_get_gpiod()
238 	if (!gpio_is_valid(template->gpio))  in gpio_led_get_gpiod()
239 		return ERR_PTR(-ENOENT);  in gpio_led_get_gpiod()
241 	ret = devm_gpio_request_one(dev, template->gpio, GPIOF_OUT_INIT_LOW,  in gpio_led_get_gpiod()
242 				    template->name);  in gpio_led_get_gpiod()
246 	gpiod = gpio_to_desc(template->gpio);  in gpio_led_get_gpiod()
248 		return ERR_PTR(-EINVAL);  in gpio_led_get_gpiod()
250 	if (template->active_low ^ gpiod_is_active_low(gpiod))  in gpio_led_get_gpiod()
258 	struct device *dev = &pdev->dev;  in gpio_led_probe()
263 	if (pdata && pdata->num_leds) {  in gpio_led_probe()
264 		priv = devm_kzalloc(dev, struct_size(priv, leds, pdata->num_leds), GFP_KERNEL);  in gpio_led_probe()
266 			return -ENOMEM;  in gpio_led_probe()
268 		priv->num_leds = pdata->num_leds;  in gpio_led_probe()
269 		for (i = 0; i < priv->num_leds; i++) {  in gpio_led_probe()
270 			const struct gpio_led *template = &pdata->leds[i];  in gpio_led_probe()
271 			struct gpio_led_data *led_dat = &priv->leds[i];  in gpio_led_probe()
273 			if (template->gpiod)  in gpio_led_probe()
274 				led_dat->gpiod = template->gpiod;  in gpio_led_probe()
276 				led_dat->gpiod =  in gpio_led_probe()
278 			if (IS_ERR(led_dat->gpiod)) {  in gpio_led_probe()
280 					 template->gpio, template->name);  in gpio_led_probe()
285 					      pdata->gpio_blink_set);  in gpio_led_probe()
305 	for (i = 0; i < priv->num_leds; i++) {  in gpio_led_shutdown()
306 		struct gpio_led_data *led = &priv->leds[i];  in gpio_led_shutdown()
308 		if (!(led->cdev.flags & LED_RETAIN_AT_SHUTDOWN))  in gpio_led_shutdown()
309 			gpio_led_set(&led->cdev, LED_OFF);  in gpio_led_shutdown()
315 	.shutdown	= gpio_led_shutdown,
317 		.name	= "leds-gpio",
327 MODULE_ALIAS("platform:leds-gpio");