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ASoC: ssm2518: Drop .volatile_reg implementation

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The implementation of ssm2518_register_volatile always returns false,
this behavior is the same as no .volatile_reg callback implementation
when cache_type != REGCACHE_NONE.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Axel Lin 2015-10-20 16:54:46 +08:00 committed by Mark Brown
parent 6ff33f3902
commit ce7b8dbdde
1 changed files with 0 additions and 6 deletions
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6
sound/soc/codecs/ssm2518.c
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@ -723,17 +723,11 @@ static struct snd_soc_codec_driver ssm2518_codec_driver = {
.num_dapm_routes = ARRAY_SIZE(ssm2518_routes),
};
static bool ssm2518_register_volatile(struct device *dev, unsigned int reg)
{
return false;
}
static const struct regmap_config ssm2518_regmap_config = {
.val_bits = 8,
.reg_bits = 8,
.max_register = SSM2518_REG_DRC_9,
.volatile_reg = ssm2518_register_volatile,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = ssm2518_reg_defaults,