dm: led: Support toggling LEDs

[u-boot] / drivers / led / led_gpio.c

diff --git a/drivers/led/led_gpio.c b/drivers/led/led_gpio.c
index 789d15600fdc1092e66c8279e54b8d6288ee4543..4106ecb6799b163bd8eec2b6dc560c1ebeb89cec 100644 (file)
--- a/drivers/led/led_gpio.c
+++ b/drivers/led/led_gpio.c
@@ -21,6 +21,7 @@ struct led_gpio_priv {
 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;
@@ -28,6 +29,12 @@ static int gpio_led_set_state(struct udevice *dev, enum led_state_t 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;
        }