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Diffstat (limited to 'include/linux/mfd/syscon.h')
-rw-r--r--include/linux/mfd/syscon.h38
1 files changed, 27 insertions, 11 deletions
diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h
index 7f20e9b502a5..aad9c6b50463 100644
--- a/include/linux/mfd/syscon.h
+++ b/include/linux/mfd/syscon.h
@@ -17,17 +17,19 @@
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);
-extern struct regmap *syscon_regmap_lookup_by_phandle_args(
- struct device_node *np,
- const char *property,
- int arg_count,
- unsigned int *out_args);
+struct regmap *device_node_to_regmap(struct device_node *np);
+struct regmap *syscon_node_to_regmap(struct device_node *np);
+struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
+struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,
+ const char *property);
+struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np,
+ const char *property,
+ int arg_count,
+ unsigned int *out_args);
+struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np,
+ const char *property);
+int of_syscon_register_regmap(struct device_node *np,
+ struct regmap *regmap);
#else
static inline struct regmap *device_node_to_regmap(struct device_node *np)
{
@@ -59,6 +61,20 @@ static inline struct regmap *syscon_regmap_lookup_by_phandle_args(
{
return ERR_PTR(-ENOTSUPP);
}
+
+static inline struct regmap *syscon_regmap_lookup_by_phandle_optional(
+ struct device_node *np,
+ const char *property)
+{
+ return NULL;
+}
+
+static inline int of_syscon_register_regmap(struct device_node *np,
+ struct regmap *regmap)
+{
+ return -EOPNOTSUPP;
+}
+
#endif
#endif /* __LINUX_MFD_SYSCON_H__ */