ASoC: Constify reg_default tables

Signed-off-by: Axel Lin <[email protected]>
Acked-by: Peter Rosin <[email protected]>
Acked-by: Charles Keepax <[email protected]>
Acked-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index 2075236..b1cb465 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -43,7 +43,7 @@
 /*
  * da732x register cache - default settings
  */
-static struct reg_default da732x_reg_cache[] = {
+static const struct reg_default da732x_reg_cache[] = {
 	{ DA732X_REG_REF1		, 0x02 },
 	{ DA732X_REG_BIAS_EN		, 0x80 },
 	{ DA732X_REG_BIAS1		, 0x00 },