Merge branch 'for-5.13/elan' into for-linus

- Mute LED support fixes for Elantech driver from Hans de Goede

Author: Jiri Kosina

drivers/hid/hid-elan.c

@@ -410,15 +410,6 @@ static int elan_start_multitouch(struct hid_device *hdev)
 	return 0;
 }
 
-static enum led_brightness elan_mute_led_get_brigtness(struct led_classdev *led_cdev)
-{
-	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hdev = to_hid_device(dev);
-	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
-
-	return drvdata->mute_led_state;
-}
-
 static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
 				       enum led_brightness value)
 {
@@ -445,8 +436,9 @@ static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
 	kfree(dmabuf);
 
 	if (ret != ELAN_LED_REPORT_SIZE) {
-		hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
-		return ret;
+		if (ret != -ENODEV)
+			hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
+		return ret < 0 ? ret : -EIO;
 	}
 
 	drvdata->mute_led_state = led_state;
@@ -459,9 +451,10 @@ static int elan_init_mute_led(struct hid_device *hdev)
 	struct led_classdev *mute_led = &drvdata->mute_led;
 
 	mute_led->name = "elan:red:mute";
-	mute_led->brightness_get = elan_mute_led_get_brigtness;
+	mute_led->default_trigger = "audio-mute";
 	mute_led->brightness_set_blocking = elan_mute_led_set_brigtness;
 	mute_led->max_brightness = LED_ON;
+	mute_led->flags = LED_HW_PLUGGABLE;
 	mute_led->dev = &hdev->dev;
 
 	return devm_led_classdev_register(&hdev->dev, mute_led);