struct gpio_desc gpio;
};
-static int gpio_led_set_on(struct udevice *dev, int on)
+static int gpio_led_set_state(struct udevice *dev, enum led_state_t state)
{
struct led_gpio_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ if (!dm_gpio_is_valid(&priv->gpio))
+ return -EREMOTEIO;
+ switch (state) {
+ case LEDST_OFF:
+ case LEDST_ON:
+ break;
+ case LEDST_TOGGLE:
+ ret = dm_gpio_get_value(&priv->gpio);
+ if (ret < 0)
+ return ret;
+ state = !ret;
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ return dm_gpio_set_value(&priv->gpio, state);
+}
+
+static enum led_state_t gpio_led_get_state(struct udevice *dev)
+{
+ struct led_gpio_priv *priv = dev_get_priv(dev);
+ int ret;
if (!dm_gpio_is_valid(&priv->gpio))
return -EREMOTEIO;
+ ret = dm_gpio_get_value(&priv->gpio);
+ if (ret < 0)
+ return ret;
- return dm_gpio_set_value(&priv->gpio, on);
+ return ret ? LEDST_ON : LEDST_OFF;
}
static int led_gpio_probe(struct udevice *dev)
{
- struct led_uclass_plat *uc_plat = dev_get_uclass_platdata(dev);
+ struct led_uc_plat *uc_plat = dev_get_uclass_platdata(dev);
struct led_gpio_priv *priv = dev_get_priv(dev);
/* Ignore the top-level LED node */
static int led_gpio_bind(struct udevice *parent)
{
- const void *blob = gd->fdt_blob;
struct udevice *dev;
- int node;
+ ofnode node;
int ret;
- for (node = fdt_first_subnode(blob, dev_of_offset(parent));
- node > 0;
- node = fdt_next_subnode(blob, node)) {
- struct led_uclass_plat *uc_plat;
+ dev_for_each_subnode(node, parent) {
+ struct led_uc_plat *uc_plat;
const char *label;
- label = fdt_getprop(blob, node, "label", NULL);
+ label = ofnode_read_string(node, "label");
if (!label) {
debug("%s: node %s has no label\n", __func__,
- fdt_get_name(blob, node, NULL));
+ ofnode_get_name(node));
return -EINVAL;
}
ret = device_bind_driver_to_node(parent, "gpio_led",
- fdt_get_name(blob, node, NULL),
+ ofnode_get_name(node),
node, &dev);
if (ret)
return ret;
}
static const struct led_ops gpio_led_ops = {
- .set_on = gpio_led_set_on,
+ .set_state = gpio_led_set_state,
+ .get_state = gpio_led_get_state,
};
static const struct udevice_id led_gpio_ids[] = {