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 */
26 struct 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
34 extern struct mutex of_mutex;
35 extern struct list_head aliases_lookup;
36 extern struct kset *of_kset;
37
38
kobj_to_device_node(struct kobject * kobj)39 static 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)
45 extern int of_property_notify(int action, struct device_node *np,
46 struct property *prop, struct property *old_prop);
47 extern void of_node_release(struct kobject *kobj);
48 #else /* CONFIG_OF_DYNAMIC */
of_property_notify(int action,struct device_node * np,struct property * prop,struct property * old_prop)49 static 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 */
63 struct 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
66 extern const void *__of_get_property(const struct device_node *np,
67 const char *name, int *lenp);
68 extern int __of_add_property(struct device_node *np, struct property *prop);
69 extern int __of_add_property_sysfs(struct device_node *np,
70 struct property *prop);
71 extern int __of_remove_property(struct device_node *np, struct property *prop);
72 extern void __of_remove_property_sysfs(struct device_node *np,
73 struct property *prop);
74 extern int __of_update_property(struct device_node *np,
75 struct property *newprop, struct property **oldprop);
76 extern void __of_update_property_sysfs(struct device_node *np,
77 struct property *newprop, struct property *oldprop);
78
79 extern void __of_attach_node(struct device_node *np);
80 extern int __of_attach_node_sysfs(struct device_node *np);
81 extern void __of_detach_node(struct device_node *np);
82 extern void __of_detach_node_sysfs(struct device_node *np);
83
84 extern void __of_sysfs_remove_bin_file(struct device_node *np,
85 struct property *prop);
86
87 /* iterators for transactions, used for overlays */
88 /* forward iterator */
89 #define for_each_transaction_entry(_oft, _te) \
90 list_for_each_entry(_te, &(_oft)->te_list, node)
91
92 /* reverse iterator */
93 #define for_each_transaction_entry_reverse(_oft, _te) \
94 list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
95
96 #endif /* _LINUX_OF_PRIVATE_H */
97