}
#endif
+/* This is superseded by led_post_bind()/led_post_probe() below. */
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;
+ return 0;
}
static int led_post_bind(struct udevice *dev)
{
struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
+ const char *default_state;
uc_plat->label = dev_read_string(dev, "label");
if (!uc_plat->label)
uc_plat->label = ofnode_get_name(dev_ofnode(dev));
+ uc_plat->default_state = LEDST_COUNT;
+
+ default_state = dev_read_string(dev, "default-state");
+ if (!default_state)
+ return 0;
+
+ if (!strncmp(default_state, "on", 2))
+ uc_plat->default_state = LEDST_ON;
+ else if (!strncmp(default_state, "off", 3))
+ uc_plat->default_state = LEDST_OFF;
+ else
+ return 0;
+
+ /*
+ * In case the LED has default-state DT property, trigger
+ * probe() to configure its default state during startup.
+ */
+ return device_probe(dev);
+}
+
+static int led_post_probe(struct udevice *dev)
+{
+ struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
+
+ if (uc_plat->default_state == LEDST_ON ||
+ uc_plat->default_state == LEDST_OFF)
+ led_set_state(dev, uc_plat->default_state);
+
return 0;
}
.name = "led",
.per_device_plat_auto = sizeof(struct led_uc_plat),
.post_bind = led_post_bind,
+ .post_probe = led_post_probe,
};