linux-kernel - [PATCH v2 09/29] ASoC: tas2764: Reinit cache on part reset

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Message-Id: <20250218-apple-codec-changes-v2-9-932760fd7e07@gmail.com>
Date: Tue, 18 Feb 2025 18:35:43 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>, 
 Baojun Xu <baojun.xu@...com>, Dan Murphy <dmurphy@...com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shi Fu <shifu0704@...ndersoft.com>, 
 Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Martin Povišer <povik+lin@...ebit.org>, 
 Hector Martin <marcan@...can.st>, linux-sound@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 asahi@...ts.linux.dev, linux-hwmon@...r.kernel.org, 
 Neal Gompa <neal@...pa.dev>, James Calligeros <jcalligeros99@...il.com>
Subject: [PATCH v2 09/29] ASoC: tas2764: Reinit cache on part reset

From: Martin Povišer <povik+lin@...ebit.org>

When the part is reset in component_probe, do not forget to reinit the
regcache, otherwise the cache can get out of sync with the part's
actual state. This fix is similar to commit 0a0342ede303
("ASoC: tas2770: Reinit regcache on reset") which concerned the
tas2770 driver.

Fixes: 827ed8a0fa50 ("ASoC: tas2764: Add the driver for the TAS2764")
Reviewed-by: Neal Gompa <neal@...pa.dev>
Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
Signed-off-by: James Calligeros <jcalligeros99@...il.com>
---
 sound/soc/codecs/tas2764.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c
index 05d025ffc567fac25110fbde2ca19337b8ee329d..e4003a724c8c09303882ee36fc11133cf5c78b57 100644
--- a/sound/soc/codecs/tas2764.c
+++ b/sound/soc/codecs/tas2764.c
@@ -539,6 +539,8 @@ static uint8_t sn012776_bop_presets[] = {
 	0x06, 0x3e, 0x37, 0x30, 0xff, 0xe6
 };
 
+static const struct regmap_config tas2764_i2c_regmap;
+
 static int tas2764_codec_probe(struct snd_soc_component *component)
 {
 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
@@ -552,6 +554,7 @@ static int tas2764_codec_probe(struct snd_soc_component *component)
 	}
 
 	tas2764_reset(tas2764);
+	regmap_reinit_cache(tas2764->regmap, &tas2764_i2c_regmap);
 
 	if (tas2764->irq) {
 		ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK0, 0xff);

-- 
2.48.1