test markd

{
	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;
}