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of: Introduce Device Tree resolve support.

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Introduce support for dynamic device tree resolution.
Using it, it is possible to prepare a device tree that's
been loaded on runtime to be modified and inserted at the kernel
live tree.

Export of of_resolve and bug fix of double free by
	Guenter Roeck <groeck@juniper.net>

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[grant.likely: Don't need to select CONFIG_OF_DYNAMIC and CONFIG_OF_DEVICE]
[grant.likely: Don't need to depend on OF or !SPARC]
[grant.likely: Factor out duplicate code blocks into single function]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Pantelis Antoniou 2014-07-04 19:59:20 +03:00 • committed by Grant Likely
commit 7941b27b16
5 changed files with 368 additions and 0 deletions
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include/linux/of.h
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@ -863,4 +863,7 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
}
#endif
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);
#endif /* _LINUX_OF_H */