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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 01:27:15 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 01:27:15 +0400
commitb9f2b21a32906a47c220b5167b88869f2c90f1c4 (patch)
tree96416cec877f9c1f2ee0f0ccdee64e38cc8e0683 /include/linux/of.h
parent70f6c087573eeb406252ff8d98f511eb5f71496e (diff)
parenta0e7398357f297dd22d043fb2d5aa1c44d61ca10 (diff)
downloadlinux-b9f2b21a32906a47c220b5167b88869f2c90f1c4.tar.xz
Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux
Pull devicetree changes from Grant Likely: "Updates to devicetree core code. This branch contains the following notable changes: - add reserved memory binding - make struct device_node a kobject and remove legacy /proc/device-tree - ePAPR conformance fixes - update in-kernel DTC copy to version v1.4.0 - preparatory changes for dynamic device tree overlays - minor bug fixes and documentation changes The most significant change in this branch is the conversion of struct device_node to be a kobject that is exposed via sysfs and removal of the old /proc/device-tree code. This simplifies the device tree handling code and tightens up the lifecycle on device tree nodes. [updated: added fix for dangling select PROC_DEVICETREE]" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits) dt: Remove dangling "select PROC_DEVICETREE" of: Add support for ePAPR "stdout-path" property of: device_node kobject lifecycle fixes of: only scan for reserved mem when fdt present powerpc: add support for reserved memory defined by device tree arm64: add support for reserved memory defined by device tree of: add missing major vendors of: add vendor prefix for SMSC of: remove /proc/device-tree of/selftest: Add self tests for manipulation of properties of: Make device nodes kobjects so they show up in sysfs arm: add support for reserved memory defined by device tree drivers: of: add support for custom reserved memory drivers drivers: of: add initialization code for dynamic reserved memory drivers: of: add initialization code for static reserved memory of: document bindings for reserved-memory nodes Revert "of: fix of_update_property()" kbuild: dtbs_install: new make target ARM: mvebu: Allows to get the SoC ID even without PCI enabled of: Allows to use the PCI translator without the PCI core ...
Diffstat (limited to 'include/linux/of.h')
-rw-r--r--include/linux/of.h61
1 files changed, 47 insertions, 14 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 83d1ac80c91e..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,
@@ -709,14 +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 */