1 files changed, 49 insertions, 8 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index b4e50d56fc74..60053bd7e79a 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -46,7 +46,7 @@ struct device_node {
         const char *name;
         const char *type;
         phandle phandle;
-        char    *full_name;
+        const char *full_name;
 
         struct  property *properties;
         struct  property *deadprops;    /* removed properties */
@@ -60,7 +60,7 @@ struct device_node {
         unsigned long _flags;
         void    *data;
 #if defined(CONFIG_SPARC)
-        char    *path_component_name;
+        const char *path_component_name;
         unsigned int unique_id;
         struct of_irq_controller *irq_trans;
 #endif
@@ -88,14 +88,14 @@ static inline void of_node_put(struct device_node *node) { }
 #ifdef CONFIG_OF
 
 /* Pointer for first entry in chain of all nodes. */
-extern struct device_node *allnodes;
+extern struct device_node *of_allnodes;
 extern struct device_node *of_chosen;
 extern struct device_node *of_aliases;
 extern rwlock_t devtree_lock;
 
 static inline bool of_have_populated_dt(void)
 {
-        return allnodes != NULL;
+        return of_allnodes != NULL;
 }
 
 static inline bool of_node_is_root(const struct device_node *node)
@@ -179,11 +179,22 @@ extern struct device_node *of_find_compatible_node(struct device_node *from,
 #define for_each_compatible_node(dn, type, compatible) \
         for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
              dn = of_find_compatible_node(dn, type, compatible))
-extern struct device_node *of_find_matching_node(struct device_node *from,
-        const struct of_device_id *matches);
+extern struct device_node *of_find_matching_node_and_match(
+        struct device_node *from,
+        const struct of_device_id *matches,
+        const struct of_device_id **match);
+static inline struct device_node *of_find_matching_node(
+        struct device_node *from,
+        const struct of_device_id *matches)
+{
+        return of_find_matching_node_and_match(from, matches, NULL);
+}
 #define for_each_matching_node(dn, matches) \
         for (dn = of_find_matching_node(NULL, matches); dn; \
              dn = of_find_matching_node(dn, matches))
+#define for_each_matching_node_and_match(dn, matches, match) \
+        for (dn = of_find_matching_node_and_match(NULL, matches, match); \
+             dn; dn = of_find_matching_node_and_match(dn, matches, match))
 extern struct device_node *of_find_node_by_path(const char *path);
 extern struct device_node *of_find_node_by_phandle(phandle handle);
 extern struct device_node *of_get_parent(const struct device_node *node);
@@ -223,6 +234,10 @@ extern struct device_node *of_find_node_with_property(
 extern struct property *of_find_property(const struct device_node *np,
                                          const char *name,
                                          int *lenp);
+extern int of_property_read_u8_array(const struct device_node *np,
+                        const char *propname, u8 *out_values, size_t sz);
+extern int of_property_read_u16_array(const struct device_node *np,
+                        const char *propname, u16 *out_values, size_t sz);
 extern int of_property_read_u32_array(const struct device_node *np,
                                       const char *propname,
                                       u32 *out_values,
@@ -255,7 +270,7 @@ extern int of_n_size_cells(struct device_node *np);
 extern const struct of_device_id *of_match_node(
         const struct of_device_id *matches, const struct device_node *node);
 extern int of_modalias_node(struct device_node *node, char *modalias, int len);
-extern struct device_node *of_parse_phandle(struct device_node *np,
+extern struct device_node *of_parse_phandle(const struct device_node *np,
                                             const char *phandle_name,
                                             int index);
 extern int of_parse_phandle_with_args(struct device_node *np,
@@ -364,6 +379,18 @@ static inline struct device_node *of_find_compatible_node(
         return NULL;
 }
 
+static inline int of_property_read_u8_array(const struct device_node *np,
+                        const char *propname, u8 *out_values, size_t sz)
+{
+        return -ENOSYS;
+}
+
+static inline int of_property_read_u16_array(const struct device_node *np,
+                        const char *propname, u16 *out_values, size_t sz)
+{
+        return -ENOSYS;
+}
+
 static inline int of_property_read_u32_array(const struct device_node *np,
                                              const char *propname,
                                              u32 *out_values, size_t sz)
@@ -411,7 +438,7 @@ static inline int of_property_match_string(struct device_node *np,
         return -ENOSYS;
 }
 
-static inline struct device_node *of_parse_phandle(struct device_node *np,
+static inline struct device_node *of_parse_phandle(const struct device_node *np,
                                                    const char *phandle_name,
                                                    int index)
 {
@@ -470,6 +497,20 @@ static inline bool of_property_read_bool(const struct device_node *np,
         return prop ? true : false;
 }
 
+static inline int of_property_read_u8(const struct device_node *np,
+                                       const char *propname,
+                                       u8 *out_value)
+{
+        return of_property_read_u8_array(np, propname, out_value, 1);
+}
+
+static inline int of_property_read_u16(const struct device_node *np,
+                                       const char *propname,
+                                       u16 *out_value)
+{
+        return of_property_read_u16_array(np, propname, out_value, 1);
+}
+
 static inline int of_property_read_u32(const struct device_node *np,
                                        const char *propname,
                                        u32 *out_value)