blob: a80ae93d4512d43b7ada95e0e96d076e0139515b [file] [log] [blame]
Simon Glass59171122015-06-23 15:38:45 -06001/*
2 * Copyright (c) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <dm.h>
10#include <errno.h>
11#include <led.h>
12#include <dm/root.h>
13#include <dm/uclass-internal.h>
14
15int led_get_by_label(const char *label, struct udevice **devp)
16{
17 struct udevice *dev;
18 struct uclass *uc;
19 int ret;
20
21 ret = uclass_get(UCLASS_LED, &uc);
22 if (ret)
23 return ret;
24 uclass_foreach_dev(dev, uc) {
25 struct led_uclass_plat *uc_plat = dev_get_uclass_platdata(dev);
26
27 if (!strcmp(label, uc_plat->label))
28 return uclass_get_device_tail(dev, 0, devp);
29 }
30
31 return -ENOENT;
32}
33
34int led_set_on(struct udevice *dev, int on)
35{
36 struct led_ops *ops = led_get_ops(dev);
37
38 if (!ops->set_on)
39 return -ENOSYS;
40
41 return ops->set_on(dev, on);
42}
43
44UCLASS_DRIVER(led) = {
45 .id = UCLASS_LED,
46 .name = "led",
47 .per_device_platdata_auto_alloc_size = sizeof(struct led_uclass_plat),
48};