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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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);
48extern int __of_changeset_apply(struct of_changeset *ocs);
49extern int __of_changeset_revert(struct of_changeset *ocs);
50#else /* CONFIG_OF_DYNAMIC */
51static inline int of_property_notify(int action, struct device_node *np,
52 struct property *prop, struct property *old_prop)
53{
54 return 0;
55}
56#endif /* CONFIG_OF_DYNAMIC */
57
58#if defined(CONFIG_OF_UNITTEST) && defined(CONFIG_OF_OVERLAY)
59extern void __init unittest_unflatten_overlay_base(void);
60#else
61static inline void unittest_unflatten_overlay_base(void) {};
62#endif
63
64extern void *__unflatten_device_tree(const void *blob,
65 struct device_node *dad,
66 struct device_node **mynodes,
67 void *(*dt_alloc)(u64 size, u64 align),
68 bool detached);
69
70/**
71 * General utilities for working with live trees.
72 *
73 * All functions with two leading underscores operate
74 * without taking node references, so you either have to
75 * own the devtree lock or work on detached trees only.
76 */
77struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags);
78__printf(2, 3) struct device_node *__of_node_dup(const struct device_node *np, const char *fmt, ...);
79
80extern const void *__of_get_property(const struct device_node *np,
81 const char *name, int *lenp);
82extern int __of_add_property(struct device_node *np, struct property *prop);
83extern int __of_add_property_sysfs(struct device_node *np,
84 struct property *prop);
85extern int __of_remove_property(struct device_node *np, struct property *prop);
86extern void __of_remove_property_sysfs(struct device_node *np,
87 struct property *prop);
88extern int __of_update_property(struct device_node *np,
89 struct property *newprop, struct property **oldprop);
90extern void __of_update_property_sysfs(struct device_node *np,
91 struct property *newprop, struct property *oldprop);
92
93extern void __of_attach_node(struct device_node *np);
94extern int __of_attach_node_sysfs(struct device_node *np);
95extern void __of_detach_node(struct device_node *np);
96extern void __of_detach_node_sysfs(struct device_node *np);
97
98extern void __of_sysfs_remove_bin_file(struct device_node *np,
99 struct property *prop);
100
101/* iterators for transactions, used for overlays */
102/* forward iterator */
103#define for_each_transaction_entry(_oft, _te) \
104 list_for_each_entry(_te, &(_oft)->te_list, node)
105
106/* reverse iterator */
107#define for_each_transaction_entry_reverse(_oft, _te) \
108 list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
109
110#endif /* _LINUX_OF_PRIVATE_H */