ASoC: ad193x: Drop .volatile_reg implementation
adau193x_reg_volatile() always return false.
This seems pointless because current code uses REGCACHE_NONE cache_type
which is supposed to be volatile.
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>
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 76d7966..3a3f3f2 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -418,14 +418,8 @@
.num_dapm_routes = ARRAY_SIZE(audio_paths),
};
-static bool adau193x_reg_volatile(struct device *dev, unsigned int reg)
-{
- return false;
-}
-
const struct regmap_config ad193x_regmap_config = {
.max_register = AD193X_NUM_REGS - 1,
- .volatile_reg = adau193x_reg_volatile,
};
EXPORT_SYMBOL_GPL(ad193x_regmap_config);