1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h
index 8cfda0554381..112dc66262cc 100644
--- a/include/linux/mfd/syscon.h
+++ b/include/linux/mfd/syscon.h
@@ -17,12 +17,18 @@
 struct device_node;
 
 #ifdef CONFIG_MFD_SYSCON
+extern struct regmap *device_node_to_regmap(struct device_node *np);
 extern struct regmap *syscon_node_to_regmap(struct device_node *np);
 extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
 extern struct regmap *syscon_regmap_lookup_by_phandle(
                                         struct device_node *np,
                                         const char *property);
 #else
+static inline struct regmap *device_node_to_regmap(struct device_node *np)
+{
+        return ERR_PTR(-ENOTSUPP);
+}
+
 static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
 {
         return ERR_PTR(-ENOTSUPP);