]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/of.h
4 * Definitions for talking to the Open Firmware PROM on
5 * Power Macintosh and other computers.
7 * Copyright (C) 1996-2005 Paul Mackerras.
9 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
10 * Updates for SPARC64 by David S. Miller
11 * Derived from PowerPC and Sparc prom.h files by Stephen Rothwell, IBM Corp.
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
18 #include <linux/types.h>
19 #include <linux/bitops.h>
20 #include <linux/mod_devicetable.h>
24 /* flag descriptions */
25 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
26 #define OF_DETACHED 2 /* node has been detached from the device tree */
28 #define OF_BAD_ADDR ((u64)-1)
30 extern struct device_node
*of_find_node_by_name(struct device_node
*from
,
32 #define for_each_node_by_name(dn, name) \
33 for (dn = of_find_node_by_name(NULL, name); dn; \
34 dn = of_find_node_by_name(dn, name))
35 extern struct device_node
*of_find_node_by_type(struct device_node
*from
,
37 #define for_each_node_by_type(dn, type) \
38 for (dn = of_find_node_by_type(NULL, type); dn; \
39 dn = of_find_node_by_type(dn, type))
40 extern struct device_node
*of_find_compatible_node(struct device_node
*from
,
41 const char *type
, const char *compat
);
42 #define for_each_compatible_node(dn, type, compatible) \
43 for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
44 dn = of_find_compatible_node(dn, type, compatible))
45 extern struct device_node
*of_find_matching_node(struct device_node
*from
,
46 const struct of_device_id
*matches
);
47 #define for_each_matching_node(dn, matches) \
48 for (dn = of_find_matching_node(NULL, matches); dn; \
49 dn = of_find_matching_node(dn, matches))
50 extern struct device_node
*of_find_node_by_path(const char *path
);
51 extern struct device_node
*of_find_node_by_phandle(phandle handle
);
52 extern struct device_node
*of_get_parent(const struct device_node
*node
);
53 extern struct device_node
*of_get_next_child(const struct device_node
*node
,
54 struct device_node
*prev
);
55 #define for_each_child_of_node(parent, child) \
56 for (child = of_get_next_child(parent, NULL); child != NULL; \
57 child = of_get_next_child(parent, child))
59 extern struct property
*of_find_property(const struct device_node
*np
,
62 extern int of_device_is_compatible(const struct device_node
*device
,
64 extern const void *of_get_property(const struct device_node
*node
,
67 extern int of_n_addr_cells(struct device_node
*np
);
68 extern int of_n_size_cells(struct device_node
*np
);
69 extern const struct of_device_id
*of_match_node(
70 const struct of_device_id
*matches
, const struct device_node
*node
);
72 #endif /* _LINUX_OF_H */