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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - drivers/of/of_private.h
1 #ifndef _LINUX_OF_PRIVATE_H
2 #define _LINUX_OF_PRIVATE_H
4 * Private symbols used by OF support code
6 * Paul Mackerras August 1996.
7 * Copyright (C) 1996-2005 Paul Mackerras.
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.
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
23 * The structure represents one alias property of 'aliases' node as
24 * an entry in aliases_lookup list.
27 struct list_head link
;
29 struct device_node
*np
;
34 extern struct mutex of_mutex
;
35 extern struct list_head aliases_lookup
;
36 extern struct kset
*of_kset
;
39 static inline struct device_node
*kobj_to_device_node(struct kobject
*kobj
)
41 return container_of(kobj
, struct device_node
, kobj
);
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 extern int __of_changeset_apply(struct of_changeset
*ocs
);
49 extern int __of_changeset_revert(struct of_changeset
*ocs
);
50 #else /* CONFIG_OF_DYNAMIC */
51 static inline int of_property_notify(int action
, struct device_node
*np
,
52 struct property
*prop
, struct property
*old_prop
)
56 #endif /* CONFIG_OF_DYNAMIC */
58 #if defined(CONFIG_OF_UNITTEST) && defined(CONFIG_OF_OVERLAY)
59 extern void __init
unittest_unflatten_overlay_base(void);
61 static inline void unittest_unflatten_overlay_base(void) {};
64 extern 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
),
71 * General utilities for working with live trees.
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.
77 struct 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
, ...);
80 extern const void *__of_get_property(const struct device_node
*np
,
81 const char *name
, int *lenp
);
82 extern int __of_add_property(struct device_node
*np
, struct property
*prop
);
83 extern int __of_add_property_sysfs(struct device_node
*np
,
84 struct property
*prop
);
85 extern int __of_remove_property(struct device_node
*np
, struct property
*prop
);
86 extern void __of_remove_property_sysfs(struct device_node
*np
,
87 struct property
*prop
);
88 extern int __of_update_property(struct device_node
*np
,
89 struct property
*newprop
, struct property
**oldprop
);
90 extern void __of_update_property_sysfs(struct device_node
*np
,
91 struct property
*newprop
, struct property
*oldprop
);
93 extern void __of_attach_node(struct device_node
*np
);
94 extern int __of_attach_node_sysfs(struct device_node
*np
);
95 extern void __of_detach_node(struct device_node
*np
);
96 extern void __of_detach_node_sysfs(struct device_node
*np
);
98 extern void __of_sysfs_remove_bin_file(struct device_node
*np
,
99 struct property
*prop
);
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)
106 /* reverse iterator */
107 #define for_each_transaction_entry_reverse(_oft, _te) \
108 list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
110 #endif /* _LINUX_OF_PRIVATE_H */