From: Martin Povišer <povik+lin@cutebit.org>
Date: Mon, 19 Sep 2022 17:34:53 +0000 (+0200)
Subject: ASoC: tas2770: Reinit regcache on reset
X-Git-Tag: v5.15.73~60
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6a12105d9d4ff60cee579192ba17fa05861714d3;p=platform%2Fkernel%2Flinux-rpi.git

ASoC: tas2770: Reinit regcache on reset

[ Upstream commit 0a0342ede303fc420f3a388e1ae82da3ae8ff6bd ]

On probe of the ASoC component, the device is reset but the regcache is
retained. This means the regcache gets out of sync if the codec is
rebound to a sound card for a second time. Fix it by reinitializing the
regcache to defaults after the device is reset.

Fixes: b0bcbe615756 ("ASoC: tas2770: Fix calling reset in probe")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220919173453.84292-1-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
index b8cda6b..a13b086 100644
--- a/sound/soc/codecs/tas2770.c
+++ b/sound/soc/codecs/tas2770.c
@@ -495,6 +495,8 @@ static struct snd_soc_dai_driver tas2770_dai_driver[] = {
 	},
 };
 
+static const struct regmap_config tas2770_i2c_regmap;
+
 static int tas2770_codec_probe(struct snd_soc_component *component)
 {
 	struct tas2770_priv *tas2770 =
@@ -508,6 +510,7 @@ static int tas2770_codec_probe(struct snd_soc_component *component)
 	}
 
 	tas2770_reset(tas2770);
+	regmap_reinit_cache(tas2770->regmap, &tas2770_i2c_regmap);
 
 	return 0;
 }