From f2b1e1cbd352129cfdbc1af52059482d74b4e81a Mon Sep 17 00:00:00 2001
From: Chris Garren <cdgarren@indesign-llc.com>
Date: Mon, 4 May 2020 09:43:20 -0400
Subject: [PATCH] ASoC: adau7118: Mark the ADAU7118 reset register as volatile
Git-commit: f2b1e1cbd352129cfdbc1af52059482d74b4e81a
Patch-mainline: v5.8-rc1
References: jsc#SLE-16518
Without this the previously written value was written to this reg,
which caused the different configuration registers to be reset.
Signed-off-by: Chris Garren <cdgarren@indesign-llc.com>
Link: https://lore.kernel.org/r/1588599820-57994-1-git-send-email-cdgarren@indesign-llc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/codecs/adau7118-i2c.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sound/soc/codecs/adau7118-i2c.c b/sound/soc/codecs/adau7118-i2c.c
index a8211362fe82..aa7afb3b826d 100644
--- a/sound/soc/codecs/adau7118-i2c.c
+++ b/sound/soc/codecs/adau7118-i2c.c
@@ -32,6 +32,12 @@ static const struct reg_default adau7118_reg_defaults[] = {
{ ADAU7118_REG_RESET, 0x00 },
};
+static bool adau7118_volatile(struct device *dev, unsigned int reg)
+{
+ return (reg == ADAU7118_REG_RESET);
+}
+
+
static const struct regmap_config adau7118_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -39,6 +45,7 @@ static const struct regmap_config adau7118_regmap_config = {
.num_reg_defaults = ARRAY_SIZE(adau7118_reg_defaults),
.cache_type = REGCACHE_RBTREE,
.max_register = ADAU7118_REG_RESET,
+ .volatile_reg = adau7118_volatile,
};
static int adau7118_probe_i2c(struct i2c_client *i2c,
--
2.16.4