1 files changed, 9 insertions, 6 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index bd716f8908de..0085bb01c041 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -196,12 +196,13 @@ extern struct property *of_find_property(const struct device_node *np,
                                          const char *name,
                                          int *lenp);
 extern int of_property_read_u32_array(const struct device_node *np,
-                                      char *propname,
+                                      const char *propname,
                                       u32 *out_values,
                                       size_t sz);
 
-extern int of_property_read_string(struct device_node *np, char *propname,
-                                        const char **out_string);
+extern int of_property_read_string(struct device_node *np,
+                                   const char *propname,
+                                   const char **out_string);
 extern int of_device_is_compatible(const struct device_node *device,
                                    const char *);
 extern int of_device_is_available(const struct device_node *device);
@@ -242,13 +243,15 @@ static inline bool of_have_populated_dt(void)
 }
 
 static inline int of_property_read_u32_array(const struct device_node *np,
-                                char *propname, u32 *out_values, size_t sz)
+                                             const char *propname,
+                                             u32 *out_values, size_t sz)
 {
         return -ENOSYS;
 }
 
 static inline int of_property_read_string(struct device_node *np,
-                                char *propname, const char **out_string)
+                                          const char *propname,
+                                          const char **out_string)
 {
         return -ENOSYS;
 }
@@ -256,7 +259,7 @@ static inline int of_property_read_string(struct device_node *np,
 #endif /* CONFIG_OF */
 
 static inline int of_property_read_u32(const struct device_node *np,
-                                       char *propname,
+                                       const char *propname,
                                        u32 *out_value)
 {
         return of_property_read_u32_array(np, propname, out_value, 1);