diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 6d40935..95d46a5 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -189,6 +189,13 @@
 			unsigned int reg, unsigned int value);
 int regcache_sync(struct regmap *map);
 
+static inline const void *regcache_get_val_addr(struct regmap *map,
+						const void *base,
+						unsigned int idx)
+{
+	return base + (map->cache_word_size * idx);
+}
+
 unsigned int regcache_get_val(struct regmap *map, const void *base,
 			      unsigned int idx);
 bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,