diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index cae69e637dff2bb48aeda584ca60d1db24a446ac..63b30752adfde5c020db7d591e7db74ff4bc92e6 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -140,4 +140,5 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
 int regmap_update_bits(struct regmap *map, unsigned int reg,
 		       unsigned int mask, unsigned int val);
 
+int regcache_sync(struct regmap *map);
 #endif