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

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Date:   Tue, 15 Sep 2020 18:39:23 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     tiwai@...e.com
Cc:     Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        Andrew Oakley <andrew@...akley.name>,
        Chris Boyle <chris@...le.name>,
        alsa-devel@...a-project.org (moderated list:SOUND),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] Revert "ALSA: usb-audio: Disable Lenovo P620 Rear line-in volume control"

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@...onical.com>
---
 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