Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 123 insertions, 14 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index 435cb995904d..919bf211877d 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -18,7 +18,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/errno.h>
-#include <linux/kref.h>
+#include <linux/kobject.h>
 #include <linux/mod_devicetable.h>
 #include <linux/spinlock.h>
 #include <linux/topology.h>
@@ -37,6 +37,7 @@ struct property {
 	struct property *next;
 	unsigned long _flags;
 	unsigned int unique_id;
+	struct bin_attribute attr;
 };
 
 #if defined(CONFIG_SPARC)
@@ -56,8 +57,7 @@ struct device_node {
 	struct	device_node *sibling;
 	struct	device_node *next;	/* next device of same type */
 	struct	device_node *allnext;	/* next in list of all nodes */
-	struct	proc_dir_entry *pde;	/* this node's proc directory */
-	struct	kref kref;
+	struct	kobject kobj;
 	unsigned long _flags;
 	void	*data;
 #if defined(CONFIG_SPARC)
@@ -67,13 +67,34 @@ struct device_node {
 #endif
 };
 
-#define MAX_PHANDLE_ARGS 8
+#define MAX_PHANDLE_ARGS 16
 struct of_phandle_args {
 	struct device_node *np;
 	int args_count;
 	uint32_t args[MAX_PHANDLE_ARGS];
 };
 
+extern int of_node_add(struct device_node *node);
+
+/* initialize a node */
+extern struct kobj_type of_node_ktype;
+static inline void of_node_init(struct device_node *node)
+{
+	kobject_init(&node->kobj, &of_node_ktype);
+}
+
+/* true when node is initialized */
+static inline int of_node_is_initialized(struct device_node *node)
+{
+	return node && node->kobj.state_initialized;
+}
+
+/* true when node is attached (i.e. present on sysfs) */
+static inline int of_node_is_attached(struct device_node *node)
+{
+	return node && node->kobj.state_in_sysfs;
+}
+
 #ifdef CONFIG_OF_DYNAMIC
 extern struct device_node *of_node_get(struct device_node *node);
 extern void of_node_put(struct device_node *node);
@@ -114,6 +135,26 @@ static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
 	set_bit(flag, &n->_flags);
 }
 
+static inline void of_node_clear_flag(struct device_node *n, unsigned long flag)
+{
+	clear_bit(flag, &n->_flags);
+}
+
+static inline int of_property_check_flag(struct property *p, unsigned long flag)
+{
+	return test_bit(flag, &p->_flags);
+}
+
+static inline void of_property_set_flag(struct property *p, unsigned long flag)
+{
+	set_bit(flag, &p->_flags);
+}
+
+static inline void of_property_clear_flag(struct property *p, unsigned long flag)
+{
+	clear_bit(flag, &p->_flags);
+}
+
 extern struct device_node *of_find_all_nodes(struct device_node *prev);
 
 /*
@@ -167,6 +208,8 @@ static inline const char *of_node_full_name(const struct device_node *np)
 	return np ? np->full_name : "<no-node>";
 }
 
+#define for_each_of_allnodes(dn) \
+	for (dn = of_allnodes; dn; dn = dn->allnext)
 extern struct device_node *of_find_node_by_name(struct device_node *from,
 	const char *name);
 extern struct device_node *of_find_node_by_type(struct device_node *from,
@@ -198,6 +241,8 @@ 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_count_elems_of_size(const struct device_node *np,
+				const char *propname, int elem_size);
 extern int of_property_read_u32_index(const struct device_node *np,
 				       const char *propname,
 				       u32 index, u32 *out_value);
@@ -390,6 +435,12 @@ static inline struct device_node *of_find_compatible_node(
 	return NULL;
 }
 
+static inline int of_property_count_elems_of_size(const struct device_node *np,
+			const char *propname, int elem_size)
+{
+	return -ENOSYS;
+}
+
 static inline int of_property_read_u32_index(const struct device_node *np,
 			const char *propname, u32 index, u32 *out_value)
 {
@@ -536,6 +587,74 @@ static inline struct device_node *of_find_matching_node(
 }
 
 /**
+ * of_property_count_u8_elems - Count the number of u8 elements in a property
+ *
+ * @np:		device node from which the property value is to be read.
+ * @propname:	name of the property to be searched.
+ *
+ * Search for a property in a device node and count the number of u8 elements
+ * in it. Returns number of elements on sucess, -EINVAL if the property does
+ * not exist or its length does not match a multiple of u8 and -ENODATA if the
+ * property does not have a value.
+ */
+static inline int of_property_count_u8_elems(const struct device_node *np,
+				const char *propname)
+{
+	return of_property_count_elems_of_size(np, propname, sizeof(u8));
+}
+
+/**
+ * of_property_count_u16_elems - Count the number of u16 elements in a property
+ *
+ * @np:		device node from which the property value is to be read.
+ * @propname:	name of the property to be searched.
+ *
+ * Search for a property in a device node and count the number of u16 elements
+ * in it. Returns number of elements on sucess, -EINVAL if the property does
+ * not exist or its length does not match a multiple of u16 and -ENODATA if the
+ * property does not have a value.
+ */
+static inline int of_property_count_u16_elems(const struct device_node *np,
+				const char *propname)
+{
+	return of_property_count_elems_of_size(np, propname, sizeof(u16));
+}
+
+/**
+ * of_property_count_u32_elems - Count the number of u32 elements in a property
+ *
+ * @np:		device node from which the property value is to be read.
+ * @propname:	name of the property to be searched.
+ *
+ * Search for a property in a device node and count the number of u32 elements
+ * in it. Returns number of elements on sucess, -EINVAL if the property does
+ * not exist or its length does not match a multiple of u32 and -ENODATA if the
+ * property does not have a value.
+ */
+static inline int of_property_count_u32_elems(const struct device_node *np,
+				const char *propname)
+{
+	return of_property_count_elems_of_size(np, propname, sizeof(u32));
+}
+
+/**
+ * of_property_count_u64_elems - Count the number of u64 elements in a property
+ *
+ * @np:		device node from which the property value is to be read.
+ * @propname:	name of the property to be searched.
+ *
+ * Search for a property in a device node and count the number of u64 elements
+ * in it. Returns number of elements on sucess, -EINVAL if the property does
+ * not exist or its length does not match a multiple of u64 and -ENODATA if the
+ * property does not have a value.
+ */
+static inline int of_property_count_u64_elems(const struct device_node *np,
+				const char *propname)
+{
+	return of_property_count_elems_of_size(np, propname, sizeof(u64));
+}
+
+/**
  * of_property_read_bool - Findfrom a property
  * @np:		device node from which the property value is to be read.
  * @propname:	name of the property to be searched.
@@ -633,14 +752,4 @@ static inline int of_get_available_child_count(const struct device_node *np)
 	return num;
 }
 
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE)
-extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
-extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
-extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
-					 struct property *prop);
-extern void proc_device_tree_update_prop(struct proc_dir_entry *pde,
-					 struct property *newprop,
-					 struct property *oldprop);
-#endif
-
 #endif /* _LINUX_OF_H */