2 * Copyright (c) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <dm/uclass-internal.h>
15 int led_get_by_label(const char *label, struct udevice **devp)
21 ret = uclass_get(UCLASS_LED, &uc);
24 uclass_foreach_dev(dev, uc) {
25 struct led_uc_plat *uc_plat = dev_get_uclass_platdata(dev);
27 /* Ignore the top-level LED node */
28 if (uc_plat->label && !strcmp(label, uc_plat->label))
29 return uclass_get_device_tail(dev, 0, devp);
35 int led_set_state(struct udevice *dev, enum led_state_t state)
37 struct led_ops *ops = led_get_ops(dev);
42 return ops->set_state(dev, state);
45 enum led_state_t led_get_state(struct udevice *dev)
47 struct led_ops *ops = led_get_ops(dev);
52 return ops->get_state(dev);
55 #ifdef CONFIG_LED_BLINK
56 int led_set_period(struct udevice *dev, int period_ms)
58 struct led_ops *ops = led_get_ops(dev);
63 return ops->set_period(dev, period_ms);
67 UCLASS_DRIVER(led) = {
70 .per_device_platdata_auto_alloc_size = sizeof(struct led_uc_plat),