Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6

* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
  dt: add empty of_machine_is_compatible
  ahci: add DT binding for Calxeda AHCI controller
  dt/platform: minor cleanup
  dt: add empty of_alias_get_id() for non-dt builds

2 files changed, 23 insertions, 12 deletions

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index c03277d..004f2ce 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -202,11 +202,18 @@ static int __devexit ahci_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id ahci_of_match[] = {
+	{ .compatible = "calxeda,hb-ahci", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ahci_of_match);
+
 static struct platform_driver ahci_driver = {
 	.remove = __devexit_p(ahci_remove),
 	.driver = {
 		.name = "ahci",
 		.owner = THIS_MODULE,
+		.of_match_table = ahci_of_match,
 	},
 	.id_table	= ahci_devtype,
 };
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index ed5a6d3..cbd5d70 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -310,18 +310,21 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l
 				 struct device_node *np)
 {
 	struct resource res;
-	if (lookup) {
-		for(; lookup->name != NULL; lookup++) {
-			if (!of_device_is_compatible(np, lookup->compatible))
-				continue;
-			if (of_address_to_resource(np, 0, &res))
-				continue;
-			if (res.start != lookup->phys_addr)
-				continue;
-			pr_debug("%s: devname=%s\n", np->full_name, lookup->name);
-			return lookup;
-		}
+
+	if (!lookup)
+		return NULL;
+
+	for(; lookup->name != NULL; lookup++) {
+		if (!of_device_is_compatible(np, lookup->compatible))
+			continue;
+		if (of_address_to_resource(np, 0, &res))
+			continue;
+		if (res.start != lookup->phys_addr)
+			continue;
+		pr_debug("%s: devname=%s\n", np->full_name, lookup->name);
+		return lookup;
 	}
+
 	return NULL;
 }
 
@@ -329,8 +332,9 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l
  * of_platform_bus_create() - Create a device for a node and its children.
  * @bus: device node of the bus to instantiate
  * @matches: match table for bus nodes
- * disallow recursive creation of child buses
+ * @lookup: auxdata table for matching id and platform_data with device nodes
  * @parent: parent for new device, or NULL for top level.
+ * @strict: require compatible property
  *
  * Creates a platform_device for the provided device_node, and optionally
  * recursively create devices for all the child nodes.