1#ifndef _LINUX_OF_PRIVATE_H
2#define _LINUX_OF_PRIVATE_H
3/*
4 * Private symbols used by OF support code
5 *
6 * Paul Mackerras	August 1996.
7 * Copyright (C) 1996-2005 Paul Mackerras.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15/**
16 * struct alias_prop - Alias property in 'aliases' node
17 * @link:	List node to link the structure in aliases_lookup list
18 * @alias:	Alias property name
19 * @np:		Pointer to device_node that the alias stands for
20 * @id:		Index value from end of alias name
21 * @stem:	Alias string without the index
22 *
23 * The structure represents one alias property of 'aliases' node as
24 * an entry in aliases_lookup list.
25 */
26struct alias_prop {
27	struct list_head link;
28	const char *alias;
29	struct device_node *np;
30	int id;
31	char stem[0];
32};
33
34extern struct mutex of_mutex;
35extern struct list_head aliases_lookup;
36extern struct kset *of_kset;
37
38
39static inline struct device_node *kobj_to_device_node(struct kobject *kobj)
40{
41	return container_of(kobj, struct device_node, kobj);
42}
43
44#if defined(CONFIG_OF_DYNAMIC)
45extern int of_property_notify(int action, struct device_node *np,
46			      struct property *prop, struct property *old_prop);
47extern void of_node_release(struct kobject *kobj);
48#else /* CONFIG_OF_DYNAMIC */
49static inline int of_property_notify(int action, struct device_node *np,
50				     struct property *prop, struct property *old_prop)
51{
52	return 0;
53}
54#endif /* CONFIG_OF_DYNAMIC */
55
56/**
57 * General utilities for working with live trees.
58 *
59 * All functions with two leading underscores operate
60 * without taking node references, so you either have to
61 * own the devtree lock or work on detached trees only.
62 */
63struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags);
64__printf(2, 3) struct device_node *__of_node_dup(const struct device_node *np, const char *fmt, ...);
65
66extern const void *__of_get_property(const struct device_node *np,
67				     const char *name, int *lenp);
68extern int __of_add_property(struct device_node *np, struct property *prop);
69extern int __of_add_property_sysfs(struct device_node *np,
70		struct property *prop);
71extern int __of_remove_property(struct device_node *np, struct property *prop);
72extern void __of_remove_property_sysfs(struct device_node *np,
73		struct property *prop);
74extern int __of_update_property(struct device_node *np,
75		struct property *newprop, struct property **oldprop);
76extern void __of_update_property_sysfs(struct device_node *np,
77		struct property *newprop, struct property *oldprop);
78
79extern void __of_attach_node(struct device_node *np);
80extern int __of_attach_node_sysfs(struct device_node *np);
81extern void __of_detach_node(struct device_node *np);
82extern void __of_detach_node_sysfs(struct device_node *np);
83
84/* iterators for transactions, used for overlays */
85/* forward iterator */
86#define for_each_transaction_entry(_oft, _te) \
87	list_for_each_entry(_te, &(_oft)->te_list, node)
88
89/* reverse iterator */
90#define for_each_transaction_entry_reverse(_oft, _te) \
91	list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
92
93#endif /* _LINUX_OF_PRIVATE_H */
94