This is a note to let you know that I've just added the patch titled
ASoC: tas2770: Reinit regcache on reset
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-tas2770-reinit-regcache-on-reset.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 21968eb40aadd963a0340d33e0347e6e822b4e54
Author: Martin Povišer <povik+lin@xxxxxxxxxxx>
Date: Mon Sep 19 19:34:53 2022 +0200
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@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220919173453.84292-1-povik+lin@xxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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;
}
