ASoC: adau7118: Mark the ADAU7118 reset register as volatile

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>

diff --git a/sound/soc/codecs/adau7118-i2c.c b/sound/soc/codecs/adau7118-i2c.c
index a8211362fe826e8b4b2d56d0b24c4917030f21b4..aa7afb3b826dc9609dc54558be6cd861225ca576 100644 (file)
--- 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,