From 0529cf90b489dbe0ddcf95de584aec086170b761 Mon Sep 17 00:00:00 2001
From: Stefan Binding <sbinding@opensource.cirrus.com>
Date: Mon, 11 Oct 2021 15:49:03 +0100
Subject: [PATCH] ASoC: cs42l42: Ensure 0dB full scale volume is used for headsets
Git-commit: aa18457c4af7a9dad1f2b150b11beae1d8ab57aa
Patch-mainline: v5.15-rc7
References: stable-5.14.19
[ Upstream commit aa18457c4af7a9dad1f2b150b11beae1d8ab57aa ]
Ensure the default 0dB playback path is always used.
The code that set FULL_SCALE_VOL based on LOAD_DET_RCSTAT was
spurious, and resulted in a -6dB attenuation being accidentally
inserted into the playback path.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211011144903.28915-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/codecs/cs42l42.c | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 99c022be94a6..8838b9a0de8e 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -901,7 +901,6 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
struct snd_soc_component *component = dai->component;
struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component);
unsigned int regval;
- u8 fullScaleVol;
int ret;
if (mute) {
@@ -972,20 +971,11 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
cs42l42->stream_use |= 1 << stream;
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- /* Read the headphone load */
- regval = snd_soc_component_read(component, CS42L42_LOAD_DET_RCSTAT);
- if (((regval & CS42L42_RLA_STAT_MASK) >> CS42L42_RLA_STAT_SHIFT) ==
- CS42L42_RLA_STAT_15_OHM) {
- fullScaleVol = CS42L42_HP_FULL_SCALE_VOL_MASK;
- } else {
- fullScaleVol = 0;
- }
-
- /* Un-mute the headphone, set the full scale volume flag */
+ /* Un-mute the headphone */
snd_soc_component_update_bits(component, CS42L42_HP_CTL,
CS42L42_HP_ANA_AMUTE_MASK |
- CS42L42_HP_ANA_BMUTE_MASK |
- CS42L42_HP_FULL_SCALE_VOL_MASK, fullScaleVol);
+ CS42L42_HP_ANA_BMUTE_MASK,
+ 0);
}
}
--
2.26.2