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/errno.h>
21 #include <linux/kobject.h>
22 #include <linux/mod_devicetable.h>
23 #include <linux/spinlock.h>
24 #include <linux/topology.h>
25 #include <linux/notifier.h>
27 #include <asm/byteorder.h>
28 #include <asm/errno.h>
37 struct property
*next
;
39 unsigned int unique_id
;
40 struct bin_attribute attr
;
43 #if defined(CONFIG_SPARC)
44 struct of_irq_controller
;
51 const char *full_name
;
53 struct property
*properties
;
54 struct property
*deadprops
; /* removed properties */
55 struct device_node
*parent
;
56 struct device_node
*child
;
57 struct device_node
*sibling
;
58 struct device_node
*next
; /* next device of same type */
59 struct device_node
*allnext
; /* next in list of all nodes */
63 #if defined(CONFIG_SPARC)
64 const char *path_component_name
;
65 unsigned int unique_id
;
66 struct of_irq_controller
*irq_trans
;
70 #define MAX_PHANDLE_ARGS 16
71 struct of_phandle_args
{
72 struct device_node
*np
;
74 uint32_t args
[MAX_PHANDLE_ARGS
];
77 /* initialize a node */
78 extern struct kobj_type of_node_ktype
;
79 static inline void of_node_init(struct device_node
*node
)
81 kobject_init(&node
->kobj
, &of_node_ktype
);
84 /* true when node is initialized */
85 static inline int of_node_is_initialized(struct device_node
*node
)
87 return node
&& node
->kobj
.state_initialized
;
90 /* true when node is attached (i.e. present on sysfs) */
91 static inline int of_node_is_attached(struct device_node
*node
)
93 return node
&& node
->kobj
.state_in_sysfs
;
96 #ifdef CONFIG_OF_DYNAMIC
97 extern struct device_node
*of_node_get(struct device_node
*node
);
98 extern void of_node_put(struct device_node
*node
);
99 #else /* CONFIG_OF_DYNAMIC */
100 /* Dummy ref counting routines - to be implemented later */
101 static inline struct device_node
*of_node_get(struct device_node
*node
)
105 static inline void of_node_put(struct device_node
*node
) { }
106 #endif /* !CONFIG_OF_DYNAMIC */
110 /* Pointer for first entry in chain of all nodes. */
111 extern struct device_node
*of_allnodes
;
112 extern struct device_node
*of_chosen
;
113 extern struct device_node
*of_aliases
;
114 extern struct device_node
*of_stdout
;
115 extern raw_spinlock_t devtree_lock
;
117 static inline bool of_have_populated_dt(void)
119 return of_allnodes
!= NULL
;
122 static inline bool of_node_is_root(const struct device_node
*node
)
124 return node
&& (node
->parent
== NULL
);
127 static inline int of_node_check_flag(struct device_node
*n
, unsigned long flag
)
129 return test_bit(flag
, &n
->_flags
);
132 static inline int of_node_test_and_set_flag(struct device_node
*n
,
135 return test_and_set_bit(flag
, &n
->_flags
);
138 static inline void of_node_set_flag(struct device_node
*n
, unsigned long flag
)
140 set_bit(flag
, &n
->_flags
);
143 static inline void of_node_clear_flag(struct device_node
*n
, unsigned long flag
)
145 clear_bit(flag
, &n
->_flags
);
148 static inline int of_property_check_flag(struct property
*p
, unsigned long flag
)
150 return test_bit(flag
, &p
->_flags
);
153 static inline void of_property_set_flag(struct property
*p
, unsigned long flag
)
155 set_bit(flag
, &p
->_flags
);
158 static inline void of_property_clear_flag(struct property
*p
, unsigned long flag
)
160 clear_bit(flag
, &p
->_flags
);
163 extern struct device_node
*of_find_all_nodes(struct device_node
*prev
);
166 * OF address retrieval & translation
169 /* Helper to read a big number; size is in cells (not bytes) */
170 static inline u64
of_read_number(const __be32
*cell
, int size
)
174 r
= (r
<< 32) | be32_to_cpu(*(cell
++));
178 /* Like of_read_number, but we want an unsigned long result */
179 static inline unsigned long of_read_ulong(const __be32
*cell
, int size
)
181 /* toss away upper bits if unsigned long is smaller than u64 */
182 return of_read_number(cell
, size
);
185 #if defined(CONFIG_SPARC)
186 #include <asm/prom.h>
189 /* Default #address and #size cells. Allow arch asm/prom.h to override */
190 #if !defined(OF_ROOT_NODE_ADDR_CELLS_DEFAULT)
191 #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
192 #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
195 /* Default string compare functions, Allow arch asm/prom.h to override */
196 #if !defined(of_compat_cmp)
197 #define of_compat_cmp(s1, s2, l) strcasecmp((s1), (s2))
198 #define of_prop_cmp(s1, s2) strcmp((s1), (s2))
199 #define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
202 /* flag descriptions */
203 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
204 #define OF_DETACHED 2 /* node has been detached from the device tree */
205 #define OF_POPULATED 3 /* device already created for the node */
206 #define OF_POPULATED_BUS 4 /* of_platform_populate recursed to children of this node */
208 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
209 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
211 #define OF_BAD_ADDR ((u64)-1)
213 static inline const char *of_node_full_name(const struct device_node
*np
)
215 return np
? np
->full_name
: "<no-node>";
218 #define for_each_of_allnodes(dn) \
219 for (dn = of_allnodes; dn; dn = dn->allnext)
220 extern struct device_node
*of_find_node_by_name(struct device_node
*from
,
222 extern struct device_node
*of_find_node_by_type(struct device_node
*from
,
224 extern struct device_node
*of_find_compatible_node(struct device_node
*from
,
225 const char *type
, const char *compat
);
226 extern struct device_node
*of_find_matching_node_and_match(
227 struct device_node
*from
,
228 const struct of_device_id
*matches
,
229 const struct of_device_id
**match
);
231 extern struct device_node
*of_find_node_by_path(const char *path
);
232 extern struct device_node
*of_find_node_by_phandle(phandle handle
);
233 extern struct device_node
*of_get_parent(const struct device_node
*node
);
234 extern struct device_node
*of_get_next_parent(struct device_node
*node
);
235 extern struct device_node
*of_get_next_child(const struct device_node
*node
,
236 struct device_node
*prev
);
237 extern struct device_node
*of_get_next_available_child(
238 const struct device_node
*node
, struct device_node
*prev
);
240 extern struct device_node
*of_get_child_by_name(const struct device_node
*node
,
244 extern struct device_node
*of_find_next_cache_node(const struct device_node
*);
245 extern struct device_node
*of_find_node_with_property(
246 struct device_node
*from
, const char *prop_name
);
248 extern struct property
*of_find_property(const struct device_node
*np
,
251 extern int of_property_count_elems_of_size(const struct device_node
*np
,
252 const char *propname
, int elem_size
);
253 extern int of_property_read_u32_index(const struct device_node
*np
,
254 const char *propname
,
255 u32 index
, u32
*out_value
);
256 extern int of_property_read_u8_array(const struct device_node
*np
,
257 const char *propname
, u8
*out_values
, size_t sz
);
258 extern int of_property_read_u16_array(const struct device_node
*np
,
259 const char *propname
, u16
*out_values
, size_t sz
);
260 extern int of_property_read_u32_array(const struct device_node
*np
,
261 const char *propname
,
264 extern int of_property_read_u64(const struct device_node
*np
,
265 const char *propname
, u64
*out_value
);
267 extern int of_property_read_string(struct device_node
*np
,
268 const char *propname
,
269 const char **out_string
);
270 extern int of_property_read_string_index(struct device_node
*np
,
271 const char *propname
,
272 int index
, const char **output
);
273 extern int of_property_match_string(struct device_node
*np
,
274 const char *propname
,
276 extern int of_property_count_strings(struct device_node
*np
,
277 const char *propname
);
278 extern int of_device_is_compatible(const struct device_node
*device
,
280 extern int of_device_is_available(const struct device_node
*device
);
281 extern const void *of_get_property(const struct device_node
*node
,
284 extern struct device_node
*of_get_cpu_node(int cpu
, unsigned int *thread
);
285 #define for_each_property_of_node(dn, pp) \
286 for (pp = dn->properties; pp != NULL; pp = pp->next)
288 extern int of_n_addr_cells(struct device_node
*np
);
289 extern int of_n_size_cells(struct device_node
*np
);
290 extern const struct of_device_id
*of_match_node(
291 const struct of_device_id
*matches
, const struct device_node
*node
);
292 extern int of_modalias_node(struct device_node
*node
, char *modalias
, int len
);
293 extern void of_print_phandle_args(const char *msg
, const struct of_phandle_args
*args
);
294 extern struct device_node
*of_parse_phandle(const struct device_node
*np
,
295 const char *phandle_name
,
297 extern int of_parse_phandle_with_args(const struct device_node
*np
,
298 const char *list_name
, const char *cells_name
, int index
,
299 struct of_phandle_args
*out_args
);
300 extern int of_parse_phandle_with_fixed_args(const struct device_node
*np
,
301 const char *list_name
, int cells_count
, int index
,
302 struct of_phandle_args
*out_args
);
303 extern int of_count_phandle_with_args(const struct device_node
*np
,
304 const char *list_name
, const char *cells_name
);
306 extern void of_alias_scan(void * (*dt_alloc
)(u64 size
, u64 align
));
307 extern int of_alias_get_id(struct device_node
*np
, const char *stem
);
309 extern int of_machine_is_compatible(const char *compat
);
311 extern int of_add_property(struct device_node
*np
, struct property
*prop
);
312 extern int of_remove_property(struct device_node
*np
, struct property
*prop
);
313 extern int of_update_property(struct device_node
*np
, struct property
*newprop
);
315 /* For updating the device tree at runtime */
316 #define OF_RECONFIG_ATTACH_NODE 0x0001
317 #define OF_RECONFIG_DETACH_NODE 0x0002
318 #define OF_RECONFIG_ADD_PROPERTY 0x0003
319 #define OF_RECONFIG_REMOVE_PROPERTY 0x0004
320 #define OF_RECONFIG_UPDATE_PROPERTY 0x0005
322 struct of_prop_reconfig
{
323 struct device_node
*dn
;
324 struct property
*prop
;
325 struct property
*old_prop
;
328 extern int of_reconfig_notifier_register(struct notifier_block
*);
329 extern int of_reconfig_notifier_unregister(struct notifier_block
*);
330 extern int of_reconfig_notify(unsigned long, void *);
332 extern int of_attach_node(struct device_node
*);
333 extern int of_detach_node(struct device_node
*);
335 #define of_match_ptr(_ptr) (_ptr)
338 * struct property *prop;
342 * of_property_for_each_u32(np, "propname", prop, p, u)
343 * printk("U32 value: %x\n", u);
345 const __be32
*of_prop_next_u32(struct property
*prop
, const __be32
*cur
,
348 * struct property *prop;
351 * of_property_for_each_string(np, "propname", prop, s)
352 * printk("String value: %s\n", s);
354 const char *of_prop_next_string(struct property
*prop
, const char *cur
);
356 bool of_console_check(struct device_node
*dn
, char *name
, int index
);
358 #else /* CONFIG_OF */
360 static inline const char* of_node_full_name(const struct device_node
*np
)
365 static inline struct device_node
*of_find_node_by_name(struct device_node
*from
,
371 static inline struct device_node
*of_find_node_by_type(struct device_node
*from
,
377 static inline struct device_node
*of_find_matching_node_and_match(
378 struct device_node
*from
,
379 const struct of_device_id
*matches
,
380 const struct of_device_id
**match
)
385 static inline struct device_node
*of_find_node_by_path(const char *path
)
390 static inline struct device_node
*of_get_parent(const struct device_node
*node
)
395 static inline struct device_node
*of_get_next_child(
396 const struct device_node
*node
, struct device_node
*prev
)
401 static inline struct device_node
*of_get_next_available_child(
402 const struct device_node
*node
, struct device_node
*prev
)
407 static inline struct device_node
*of_find_node_with_property(
408 struct device_node
*from
, const char *prop_name
)
413 static inline bool of_have_populated_dt(void)
418 static inline struct device_node
*of_get_child_by_name(
419 const struct device_node
*node
,
425 static inline int of_device_is_compatible(const struct device_node
*device
,
431 static inline int of_device_is_available(const struct device_node
*device
)
436 static inline struct property
*of_find_property(const struct device_node
*np
,
443 static inline struct device_node
*of_find_compatible_node(
444 struct device_node
*from
,
451 static inline int of_property_count_elems_of_size(const struct device_node
*np
,
452 const char *propname
, int elem_size
)
457 static inline int of_property_read_u32_index(const struct device_node
*np
,
458 const char *propname
, u32 index
, u32
*out_value
)
463 static inline int of_property_read_u8_array(const struct device_node
*np
,
464 const char *propname
, u8
*out_values
, size_t sz
)
469 static inline int of_property_read_u16_array(const struct device_node
*np
,
470 const char *propname
, u16
*out_values
, size_t sz
)
475 static inline int of_property_read_u32_array(const struct device_node
*np
,
476 const char *propname
,
477 u32
*out_values
, size_t sz
)
482 static inline int of_property_read_string(struct device_node
*np
,
483 const char *propname
,
484 const char **out_string
)
489 static inline int of_property_read_string_index(struct device_node
*np
,
490 const char *propname
, int index
,
491 const char **out_string
)
496 static inline int of_property_count_strings(struct device_node
*np
,
497 const char *propname
)
502 static inline const void *of_get_property(const struct device_node
*node
,
509 static inline struct device_node
*of_get_cpu_node(int cpu
,
510 unsigned int *thread
)
515 static inline int of_property_read_u64(const struct device_node
*np
,
516 const char *propname
, u64
*out_value
)
521 static inline int of_property_match_string(struct device_node
*np
,
522 const char *propname
,
528 static inline struct device_node
*of_parse_phandle(const struct device_node
*np
,
529 const char *phandle_name
,
535 static inline int of_parse_phandle_with_args(struct device_node
*np
,
536 const char *list_name
,
537 const char *cells_name
,
539 struct of_phandle_args
*out_args
)
544 static inline int of_parse_phandle_with_fixed_args(const struct device_node
*np
,
545 const char *list_name
, int cells_count
, int index
,
546 struct of_phandle_args
*out_args
)
551 static inline int of_count_phandle_with_args(struct device_node
*np
,
552 const char *list_name
,
553 const char *cells_name
)
558 static inline int of_alias_get_id(struct device_node
*np
, const char *stem
)
563 static inline int of_machine_is_compatible(const char *compat
)
568 static inline bool of_console_check(const struct device_node
*dn
, const char *name
, int index
)
573 static inline const __be32
*of_prop_next_u32(struct property
*prop
,
574 const __be32
*cur
, u32
*pu
)
579 static inline const char *of_prop_next_string(struct property
*prop
,
585 #define of_match_ptr(_ptr) NULL
586 #define of_match_node(_matches, _node) NULL
587 #endif /* CONFIG_OF */
589 #if defined(CONFIG_OF) && defined(CONFIG_NUMA)
590 extern int of_node_to_nid(struct device_node
*np
);
592 static inline int of_node_to_nid(struct device_node
*device
) { return 0; }
595 static inline struct device_node
*of_find_matching_node(
596 struct device_node
*from
,
597 const struct of_device_id
*matches
)
599 return of_find_matching_node_and_match(from
, matches
, NULL
);
603 * of_property_count_u8_elems - Count the number of u8 elements in a property
605 * @np: device node from which the property value is to be read.
606 * @propname: name of the property to be searched.
608 * Search for a property in a device node and count the number of u8 elements
609 * in it. Returns number of elements on sucess, -EINVAL if the property does
610 * not exist or its length does not match a multiple of u8 and -ENODATA if the
611 * property does not have a value.
613 static inline int of_property_count_u8_elems(const struct device_node
*np
,
614 const char *propname
)
616 return of_property_count_elems_of_size(np
, propname
, sizeof(u8
));
620 * of_property_count_u16_elems - Count the number of u16 elements in a property
622 * @np: device node from which the property value is to be read.
623 * @propname: name of the property to be searched.
625 * Search for a property in a device node and count the number of u16 elements
626 * in it. Returns number of elements on sucess, -EINVAL if the property does
627 * not exist or its length does not match a multiple of u16 and -ENODATA if the
628 * property does not have a value.
630 static inline int of_property_count_u16_elems(const struct device_node
*np
,
631 const char *propname
)
633 return of_property_count_elems_of_size(np
, propname
, sizeof(u16
));
637 * of_property_count_u32_elems - Count the number of u32 elements in a property
639 * @np: device node from which the property value is to be read.
640 * @propname: name of the property to be searched.
642 * Search for a property in a device node and count the number of u32 elements
643 * in it. Returns number of elements on sucess, -EINVAL if the property does
644 * not exist or its length does not match a multiple of u32 and -ENODATA if the
645 * property does not have a value.
647 static inline int of_property_count_u32_elems(const struct device_node
*np
,
648 const char *propname
)
650 return of_property_count_elems_of_size(np
, propname
, sizeof(u32
));
654 * of_property_count_u64_elems - Count the number of u64 elements in a property
656 * @np: device node from which the property value is to be read.
657 * @propname: name of the property to be searched.
659 * Search for a property in a device node and count the number of u64 elements
660 * in it. Returns number of elements on sucess, -EINVAL if the property does
661 * not exist or its length does not match a multiple of u64 and -ENODATA if the
662 * property does not have a value.
664 static inline int of_property_count_u64_elems(const struct device_node
*np
,
665 const char *propname
)
667 return of_property_count_elems_of_size(np
, propname
, sizeof(u64
));
671 * of_property_read_bool - Findfrom a property
672 * @np: device node from which the property value is to be read.
673 * @propname: name of the property to be searched.
675 * Search for a property in a device node.
676 * Returns true if the property exist false otherwise.
678 static inline bool of_property_read_bool(const struct device_node
*np
,
679 const char *propname
)
681 struct property
*prop
= of_find_property(np
, propname
, NULL
);
683 return prop
? true : false;
686 static inline int of_property_read_u8(const struct device_node
*np
,
687 const char *propname
,
690 return of_property_read_u8_array(np
, propname
, out_value
, 1);
693 static inline int of_property_read_u16(const struct device_node
*np
,
694 const char *propname
,
697 return of_property_read_u16_array(np
, propname
, out_value
, 1);
700 static inline int of_property_read_u32(const struct device_node
*np
,
701 const char *propname
,
704 return of_property_read_u32_array(np
, propname
, out_value
, 1);
707 #define of_property_for_each_u32(np, propname, prop, p, u) \
708 for (prop = of_find_property(np, propname, NULL), \
709 p = of_prop_next_u32(prop, NULL, &u); \
711 p = of_prop_next_u32(prop, p, &u))
713 #define of_property_for_each_string(np, propname, prop, s) \
714 for (prop = of_find_property(np, propname, NULL), \
715 s = of_prop_next_string(prop, NULL); \
717 s = of_prop_next_string(prop, s))
719 #define for_each_node_by_name(dn, name) \
720 for (dn = of_find_node_by_name(NULL, name); dn; \
721 dn = of_find_node_by_name(dn, name))
722 #define for_each_node_by_type(dn, type) \
723 for (dn = of_find_node_by_type(NULL, type); dn; \
724 dn = of_find_node_by_type(dn, type))
725 #define for_each_compatible_node(dn, type, compatible) \
726 for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
727 dn = of_find_compatible_node(dn, type, compatible))
728 #define for_each_matching_node(dn, matches) \
729 for (dn = of_find_matching_node(NULL, matches); dn; \
730 dn = of_find_matching_node(dn, matches))
731 #define for_each_matching_node_and_match(dn, matches, match) \
732 for (dn = of_find_matching_node_and_match(NULL, matches, match); \
733 dn; dn = of_find_matching_node_and_match(dn, matches, match))
735 #define for_each_child_of_node(parent, child) \
736 for (child = of_get_next_child(parent, NULL); child != NULL; \
737 child = of_get_next_child(parent, child))
738 #define for_each_available_child_of_node(parent, child) \
739 for (child = of_get_next_available_child(parent, NULL); child != NULL; \
740 child = of_get_next_available_child(parent, child))
742 #define for_each_node_with_property(dn, prop_name) \
743 for (dn = of_find_node_with_property(NULL, prop_name); dn; \
744 dn = of_find_node_with_property(dn, prop_name))
746 static inline int of_get_child_count(const struct device_node
*np
)
748 struct device_node
*child
;
751 for_each_child_of_node(np
, child
)
757 static inline int of_get_available_child_count(const struct device_node
*np
)
759 struct device_node
*child
;
762 for_each_available_child_of_node(np
, child
)
769 #define _OF_DECLARE(table, name, compat, fn, fn_type) \
770 static const struct of_device_id __of_table_##name \
771 __used __section(__##table##_of_table) \
772 = { .compatible = compat, \
773 .data = (fn == (fn_type)NULL) ? fn : fn }
775 #define _OF_DECLARE(table, name, compat, fn, fn_type) \
776 static const struct of_device_id __of_table_##name \
777 __attribute__((unused)) \
778 = { .compatible = compat, \
779 .data = (fn == (fn_type)NULL) ? fn : fn }
782 typedef int (*of_init_fn_2
)(struct device_node
*, struct device_node
*);
783 typedef void (*of_init_fn_1
)(struct device_node
*);
785 #define OF_DECLARE_1(table, name, compat, fn) \
786 _OF_DECLARE(table, name, compat, fn, of_init_fn_1)
787 #define OF_DECLARE_2(table, name, compat, fn) \
788 _OF_DECLARE(table, name, compat, fn, of_init_fn_2)
791 * struct of_changeset_entry - Holds a changeset entry
793 * @node: list_head for the log list
794 * @action: notifier action
795 * @np: pointer to the device node affected
796 * @prop: pointer to the property affected
797 * @old_prop: hold a pointer to the original property
799 * Every modification of the device tree during a changeset
800 * is held in a list of of_changeset_entry structures.
801 * That way we can recover from a partial application, or we can
802 * revert the changeset
804 struct of_changeset_entry
{
805 struct list_head node
;
806 unsigned long action
;
807 struct device_node
*np
;
808 struct property
*prop
;
809 struct property
*old_prop
;
813 * struct of_changeset - changeset tracker structure
815 * @entries: list_head for the changeset entries
817 * changesets are a convenient way to apply bulk changes to the
818 * live tree. In case of an error, changes are rolled-back.
819 * changesets live on after initial application, and if not
820 * destroyed after use, they can be reverted in one single call.
822 struct of_changeset
{
823 struct list_head entries
;
826 #ifdef CONFIG_OF_DYNAMIC
827 extern void of_changeset_init(struct of_changeset
*ocs
);
828 extern void of_changeset_destroy(struct of_changeset
*ocs
);
829 extern int of_changeset_apply(struct of_changeset
*ocs
);
830 extern int of_changeset_revert(struct of_changeset
*ocs
);
831 extern int of_changeset_action(struct of_changeset
*ocs
,
832 unsigned long action
, struct device_node
*np
,
833 struct property
*prop
);
835 static inline int of_changeset_attach_node(struct of_changeset
*ocs
,
836 struct device_node
*np
)
838 return of_changeset_action(ocs
, OF_RECONFIG_ATTACH_NODE
, np
, NULL
);
841 static inline int of_changeset_detach_node(struct of_changeset
*ocs
,
842 struct device_node
*np
)
844 return of_changeset_action(ocs
, OF_RECONFIG_DETACH_NODE
, np
, NULL
);
847 static inline int of_changeset_add_property(struct of_changeset
*ocs
,
848 struct device_node
*np
, struct property
*prop
)
850 return of_changeset_action(ocs
, OF_RECONFIG_ADD_PROPERTY
, np
, prop
);
853 static inline int of_changeset_remove_property(struct of_changeset
*ocs
,
854 struct device_node
*np
, struct property
*prop
)
856 return of_changeset_action(ocs
, OF_RECONFIG_REMOVE_PROPERTY
, np
, prop
);
859 static inline int of_changeset_update_property(struct of_changeset
*ocs
,
860 struct device_node
*np
, struct property
*prop
)
862 return of_changeset_action(ocs
, OF_RECONFIG_UPDATE_PROPERTY
, np
, prop
);
866 /* CONFIG_OF_RESOLVE api */
867 extern int of_resolve_phandles(struct device_node
*tree
);
869 #endif /* _LINUX_OF_H */