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of/address: Add of_find_matching_node_by_address helper

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of_find_matching_node_by_address() can be used to find a device tree
node for a device at a specific address.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Grant Likely
2011-07-05 23:42:28 -06:00
parent 8c11642a50
commit 90e33f62e0
2 changed files with 22 additions and 0 deletions
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4
include/linux/of_address.h
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@@ -6,6 +6,10 @@
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
extern int of_address_to_resource(struct device_node *dev, int index,
struct resource *r);
extern struct device_node *of_find_matching_node_by_address(
struct device_node *from,
const struct of_device_id *matches,
u64 base_address);
extern void __iomem *of_iomap(struct device_node *device, int index);
/* Extract an address from a device, returns the region size and