diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 2b5851d42dbb..6d409350f50a 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -195,6 +195,9 @@ bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
 		      unsigned int val);
 int regcache_lookup_reg(struct regmap *map, unsigned int reg);
 
+int _regmap_raw_write(struct regmap *map, unsigned int reg,
+		      const void *val, size_t val_len, bool async);
+
 void regmap_async_complete_cb(struct regmap_async *async, int ret);
 
 extern struct regcache_ops regcache_rbtree_ops;
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 44a45cf0644b..9174c9d45a16 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -937,8 +937,8 @@ static int _regmap_select_page(struct regmap *map, unsigned int *reg,
 	return 0;
 }
 
-static int _regmap_raw_write(struct regmap *map, unsigned int reg,
-			     const void *val, size_t val_len, bool async)
+int _regmap_raw_write(struct regmap *map, unsigned int reg,
+		      const void *val, size_t val_len, bool async)
 {
 	struct regmap_range_node *range;
 	unsigned long flags;