ASoC: wm8753: Drop wm8753_writeable function

When .max_register is set and .writeable_reg is not implement, registers
between 0 and .max_register are writeable. This is the same as current
implementation of wm8753_writeable(), so just drop implementation for
.writeable_reg callback.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index feb2997a377a..4c6eaeb61b2a 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -138,11 +138,6 @@ static bool wm8753_volatile(struct device *dev, unsigned int reg)
         return reg == WM8753_RESET;
 }
 
-static bool wm8753_writeable(struct device *dev, unsigned int reg)
-{
-        return reg <= WM8753_ADCTL2;
-}
-
 /* codec private data */
 struct wm8753_priv {
         struct regmap *regmap;
@@ -1510,7 +1505,6 @@ static const struct regmap_config wm8753_regmap = {
         .val_bits = 9,
 
         .max_register = WM8753_ADCTL2,
-        .writeable_reg = wm8753_writeable,
         .volatile_reg = wm8753_volatile,
 
         .cache_type = REGCACHE_RBTREE,