linux-kernel - [PATCH] ASoC: es8316: limit headphone mixer volume

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Date:   Sun, 25 Aug 2019 06:04:26 +0900
From:   Katsuhiro Suzuki <katsuhiro@...suster.net>
To:     Mark Brown <broonie@...nel.org>,
        David Yang <yangxiaohua@...rest-semi.com>,
        Daniel Drake <drake@...lessm.com>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Katsuhiro Suzuki <katsuhiro@...suster.net>
Subject: [PATCH] ASoC: es8316: limit headphone mixer volume

This patch limits Headphone mixer volume to 4 from 7.
Because output sound suddenly becomes very loudly with many noise if
set volume over 4.

Signed-off-by: Katsuhiro Suzuki <katsuhiro@...suster.net>
---
 sound/soc/codecs/es8316.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
index 8dfb5dbeebbf..bc4141e1eb7f 100644
--- a/sound/soc/codecs/es8316.c
+++ b/sound/soc/codecs/es8316.c
@@ -91,7 +91,7 @@ static const struct snd_kcontrol_new es8316_snd_controls[] = {
 	SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL,
 		       4, 0, 3, 1, hpout_vol_tlv),
 	SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL,
-		       0, 4, 7, 0, hpmixer_gain_tlv),
+		       0, 4, 4, 0, hpmixer_gain_tlv),
 
 	SOC_ENUM("Playback Polarity", dacpol),
 	SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL,
-- 
2.23.0.rc1