Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull device tree changes from Grant Likely:
 "Here are the DT changes I've got queued up for v3.8.  As described
  below, there are a lot of bug fixes here and documentation updates but
  nothing major:

  Bug fixes, little cleanups, and documentation changes.  The most
  invasive thing here touches a bunch of the arch directories to use a
  common build rule for .dtb files.  There are no major changes to
  functionality here other than a few new helper functions."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
  arm64: Fix the dtbs target building
  mtd: nand: davinci: fix the binding documentation
  rtc: rtc-mv: Add the device tree binding documentation
  devicetree/bindings: Move gpio-leds binding into leds directory
  of/vendor-prefixes: add Imagination Technologies
  microblaze: use new common dtc rule
  c6x: use new common dtc rule
  openrisc: use new common dtc rule
  arm64: Add dtbs target for building all the enabled dtb files
  arm64: use new common dtc rule
  ARM: dt: change .dtb build rules to build in dts directory
  kbuild: centralize .dts->.dtb rule
  Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes"
  of/spi: Honour "status=disabled" property of device
  of_mdio: Honour "status=disabled" property of device
  of_i2c: Honour "status=disabled" property of device
  powerpc: Fix fallout from device_node->name constification
  of: add 'const' for of_parse_phandle parameter *np
  Documentation: correct of_platform_populate() argument list
  script: dtc: clean generated files
  ...

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)