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

This reverts commit 904639f491fb30d010642017cb9ff997bcd437f2.

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

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

Fixes: 904639f491fb ("ALSA: usb-audio: Disable Lenovo P620 Rear line-in volume control")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200915103925.12777-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 5b43e9e40e49b44ac0a37bcaa77e42d8cce83cac..c369c81e74c41f20fb67821283dbfd41dda4b228 100644 (file)
--- 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 */
        {}
 };