diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index eb93921..089479f 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -143,6 +143,7 @@
 int regmap_update_bits_check(struct regmap *map, unsigned int reg,
 			     unsigned int mask, unsigned int val,
 			     bool *change);
+int regmap_get_val_bytes(struct regmap *map);
 
 int regcache_sync(struct regmap *map);
 void regcache_cache_only(struct regmap *map, bool enable);