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gerrit-public.fairphone.software / kernel / msm-4.19 / 183223770ae8625df8966ed15811d1b3ee8720aa / . / drivers / of / of_private.h
blob: 829469faeb2338e7f42de18ab2cbd06d649ddfd3 [file] [log] [blame]
Stepan Moskovchenkoced4eec2012-12-06 14:55:41 -0800[diff] [blame]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
Pantelis Antoniouc05aba22014-07-04 19:58:03 +0300[diff] [blame]34extern struct mutex of_mutex;
Stepan Moskovchenkoced4eec2012-12-06 14:55:41 -0800[diff] [blame]35extern struct list_head aliases_lookup;
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]36extern struct kset *of_kset;
37
Grant Likely6afc0dc2014-06-26 15:40:48 +0100[diff] [blame]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,
Grant Likely259092a2014-07-16 12:48:23 -0600[diff] [blame]46 struct property *prop, struct property *old_prop);
Grant Likely6afc0dc2014-06-26 15:40:48 +0100[diff] [blame]47extern void of_node_release(struct kobject *kobj);
Gavin Shan18322372015-11-05 00:12:49 +1100[diff] [blame^]48extern int __of_changeset_apply(struct of_changeset *ocs);
49extern int __of_changeset_revert(struct of_changeset *ocs);
Grant Likely6afc0dc2014-06-26 15:40:48 +0100[diff] [blame]50#else /* CONFIG_OF_DYNAMIC */
51static inline int of_property_notify(int action, struct device_node *np,
Grant Likely259092a2014-07-16 12:48:23 -0600[diff] [blame]52 struct property *prop, struct property *old_prop)
Grant Likely6afc0dc2014-06-26 15:40:48 +0100[diff] [blame]53{
54 return 0;
55}
56#endif /* CONFIG_OF_DYNAMIC */
57
Pantelis Antoniou69843392014-07-04 19:58:47 +0300[diff] [blame]58/**
59 * General utilities for working with live trees.
60 *
61 * All functions with two leading underscores operate
62 * without taking node references, so you either have to
63 * own the devtree lock or work on detached trees only.
64 */
65struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags);
Grant Likelye5179582014-11-17 22:31:32 +0000[diff] [blame]66__printf(2, 3) struct device_node *__of_node_dup(const struct device_node *np, const char *fmt, ...);
Pantelis Antoniou69843392014-07-04 19:58:47 +0300[diff] [blame]67
Grant Likelya25095d2014-07-15 23:25:43 -0600[diff] [blame]68extern const void *__of_get_property(const struct device_node *np,
69 const char *name, int *lenp);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]70extern int __of_add_property(struct device_node *np, struct property *prop);
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]71extern int __of_add_property_sysfs(struct device_node *np,
72 struct property *prop);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]73extern int __of_remove_property(struct device_node *np, struct property *prop);
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]74extern void __of_remove_property_sysfs(struct device_node *np,
75 struct property *prop);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]76extern int __of_update_property(struct device_node *np,
77 struct property *newprop, struct property **oldprop);
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]78extern void __of_update_property_sysfs(struct device_node *np,
79 struct property *newprop, struct property *oldprop);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]80
81extern void __of_attach_node(struct device_node *np);
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]82extern int __of_attach_node_sysfs(struct device_node *np);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]83extern void __of_detach_node(struct device_node *np);
Grant Likely8a2b22a2014-07-23 17:05:06 -0600[diff] [blame]84extern void __of_detach_node_sysfs(struct device_node *np);
Pantelis Antonioud8c50082014-07-04 19:58:46 +0300[diff] [blame]85
Pantelis Antoniou201c9102014-07-04 19:58:49 +0300[diff] [blame]86/* iterators for transactions, used for overlays */
87/* forward iterator */
88#define for_each_transaction_entry(_oft, _te) \
89 list_for_each_entry(_te, &(_oft)->te_list, node)
90
91/* reverse iterator */
92#define for_each_transaction_entry_reverse(_oft, _te) \
93 list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
94
Stepan Moskovchenkoced4eec2012-12-06 14:55:41 -0800[diff] [blame]95#endif /* _LINUX_OF_PRIVATE_H */