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From:   =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik+lin@cutebit.org>
To:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>
Cc:     navada@ti.com, Charles Keepax <ckeepax@opensource.cirrus.com>,
        Stephen Kitt <steve@sk2.org>, Dan Murphy <dmurphy@ti.com>,
        alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
        =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik+lin@cutebit.org>
Subject: [PATCH] ASoC: tas2770: Reinit regcache on reset
Date:   Mon, 19 Sep 2022 19:34:53 +0200
Message-Id: <20220919173453.84292-1-povik+lin@cutebit.org>
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Precedence: bulk

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>
---
 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;
 }
-- 
2.33.0