diff --git a/[refs] b/[refs]
index 6a02c0560bf5..1ad752505417 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5d5b7d4f80ed6e861c1c220fd57e3dad0912526e
+refs/heads/master: a313f9f565d84f2fcc81c818a6b0baaae752a821
diff --git a/trunk/include/linux/regmap.h b/trunk/include/linux/regmap.h
index 42c69e75b131..33d5f1d9f882 100644
--- a/trunk/include/linux/regmap.h
+++ b/trunk/include/linux/regmap.h
@@ -280,6 +280,13 @@ static inline int regcache_sync(struct regmap *map)
 	return -EINVAL;
 }
 
+static inline int regcache_sync_region(struct regmap *map, unsigned int min,
+				       unsigned int max)
+{
+	WARN_ONCE(1, "regmap API is disabled");
+	return -EINVAL;
+}
+
 static inline void regcache_cache_only(struct regmap *map, bool enable)
 {
 	WARN_ONCE(1, "regmap API is disabled");