---

yaml --- r: 256788 b: refs/heads/master c: 90e33f6 h: refs/heads/master v: v3
git-mirror · Jul 18, 2011 · bfdd624 · bfdd624
1 parent ff884f9
commit bfdd624
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Showing 3 changed files with 23 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8c11642a50555e584774737f7c296f9aece310cf
+refs/heads/master: 90e33f62e027d330485d03598e1b2d8db3ff031c
diff --git a/trunk/drivers/of/address.c b/trunk/drivers/of/address.c
@@ -577,6 +577,24 @@ int of_address_to_resource(struct device_node *dev, int index,
 }
 EXPORT_SYMBOL_GPL(of_address_to_resource);
 
+struct device_node *of_find_matching_node_by_address(struct device_node *from,
+					const struct of_device_id *matches,
+					u64 base_address)
+{
+	struct device_node *dn = of_find_matching_node(from, matches);
+	struct resource res;
+
+	while (dn) {
+		if (of_address_to_resource(dn, 0, &res))
+			continue;
+		if (res.start == base_address)
+			return dn;
+		dn = of_find_matching_node(dn, matches);
+	}
+
+	return NULL;
+}
+
 
 /**
  * of_iomap - Maps the memory mapped IO for a given device_node

diff --git a/trunk/include/linux/of_address.h b/trunk/include/linux/of_address.h
@@ -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