From: Martin Povišer povik+lin@cutebit.org
[ 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 --- 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 024ec68e8d35..171bbcc919d5 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; }