[PATCH] Revert "ALSA: usb-audio: Disable Lenovo P620 Rear line-in volume control"

[Kai-Heng Feng]

This reverts commit 34dedd2a83b241ba6aeb290260313c65dc58660e.

According to Realtek, volume FU works for line-in.

I can confirm volume control works after device firmware is updated.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
 sound/usb/mixer_maps.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 5b43e9e40e49..c369c81e74c4 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -371,7 +371,6 @@ static const struct usbmix_name_map asus_rog_map[] = {
 };
 
 static const struct usbmix_name_map lenovo_p620_rear_map[] = {
-	{ 19, NULL, 2 }, /* FU, Volume */
 	{ 19, NULL, 12 }, /* FU, Input Gain Pad */
 	{}
 };
-- 
2.17.1