From 0a0342ede303fc420f3a388e1ae82da3ae8ff6bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik+lin@cutebit.org>
Date: Mon, 19 Sep 2022 19:34:53 +0200
Subject: [PATCH] ASoC: tas2770: Reinit regcache on reset
Mime-version: 1.0
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8bit
Git-commit: 0a0342ede303fc420f3a388e1ae82da3ae8ff6bd
Patch-mainline: v6.0
References: git-fixes
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 PoviĊĦer <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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/codecs/tas2770.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
index bb653b664146..b6765235a4b3 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;
}
--
2.35.3