1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2015 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
12 #include <dm/uclass-internal.h>
14 int led_get_by_label(const char *label, struct udevice **devp)
20 ret = uclass_get(UCLASS_LED, &uc);
23 uclass_foreach_dev(dev, uc) {
24 struct led_uc_plat *uc_plat = dev_get_uclass_platdata(dev);
26 /* Ignore the top-level LED node */
27 if (uc_plat->label && !strcmp(label, uc_plat->label))
28 return uclass_get_device_tail(dev, 0, devp);
34 int led_set_state(struct udevice *dev, enum led_state_t state)
36 struct led_ops *ops = led_get_ops(dev);
41 return ops->set_state(dev, state);
44 enum led_state_t led_get_state(struct udevice *dev)
46 struct led_ops *ops = led_get_ops(dev);
51 return ops->get_state(dev);
54 #ifdef CONFIG_LED_BLINK
55 int led_set_period(struct udevice *dev, int period_ms)
57 struct led_ops *ops = led_get_ops(dev);
62 return ops->set_period(dev, period_ms);
66 UCLASS_DRIVER(led) = {
69 .per_device_platdata_auto_alloc_size = sizeof(struct led_uc_plat),