+// SPDX-License-Identifier: GPL-2.0+
/*
* 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/device-internal.h>
#include <dm/root.h>
#include <dm/uclass-internal.h>
}
#endif
+int led_default_state(void)
+{
+ struct udevice *dev;
+ struct uclass *uc;
+ const char *default_state;
+ int ret;
+
+ ret = uclass_get(UCLASS_LED, &uc);
+ if (ret)
+ return ret;
+ for (uclass_find_first_device(UCLASS_LED, &dev);
+ dev;
+ uclass_find_next_device(&dev)) {
+ default_state = dev_read_string(dev, "default-state");
+ if (!default_state)
+ continue;
+ ret = device_probe(dev);
+ if (ret)
+ return ret;
+ if (!strncmp(default_state, "on", 2))
+ led_set_state(dev, LEDST_ON);
+ else if (!strncmp(default_state, "off", 3))
+ led_set_state(dev, LEDST_OFF);
+ /* default-state = "keep" : device is only probed */
+ }
+
+ return ret;
+}
+
UCLASS_DRIVER(led) = {
.id = UCLASS_LED,
.name = "led",