diff options
Diffstat (limited to 'drivers/led/led-uclass.c')
-rw-r--r-- | drivers/led/led-uclass.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/led/led-uclass.c b/drivers/led/led-uclass.c new file mode 100644 index 0000000000..a80ae93d45 --- /dev/null +++ b/drivers/led/led-uclass.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2015 Google, Inc + * Written by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <led.h> +#include <dm/root.h> +#include <dm/uclass-internal.h> + +int led_get_by_label(const char *label, struct udevice **devp) +{ + struct udevice *dev; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_LED, &uc); + if (ret) + return ret; + uclass_foreach_dev(dev, uc) { + struct led_uclass_plat *uc_plat = dev_get_uclass_platdata(dev); + + if (!strcmp(label, uc_plat->label)) + return uclass_get_device_tail(dev, 0, devp); + } + + return -ENOENT; +} + +int led_set_on(struct udevice *dev, int on) +{ + struct led_ops *ops = led_get_ops(dev); + + if (!ops->set_on) + return -ENOSYS; + + return ops->set_on(dev, on); +} + +UCLASS_DRIVER(led) = { + .id = UCLASS_LED, + .name = "led", + .per_device_platdata_auto_alloc_size = sizeof(struct led_uclass_plat), +}; |