diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 901f290999d065..e11c00b2dc1edc 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -910,24 +910,21 @@ static struct direct_window *ddw_list_new_entry(struct device_node *pdn,
 	return window;
 }
 
-static int find_existing_ddw_windows(void)
+static void find_existing_ddw_windows_named(const char *name)
 {
 	int len;
 	struct device_node *pdn;
 	struct direct_window *window;
-	const struct dynamic_dma_window_prop *direct64;
-
-	if (!firmware_has_feature(FW_FEATURE_LPAR))
-		return 0;
+	const struct dynamic_dma_window_prop *dma64;
 
-	for_each_node_with_property(pdn, DIRECT64_PROPNAME) {
-		direct64 = of_get_property(pdn, DIRECT64_PROPNAME, &len);
-		if (!direct64 || len < sizeof(*direct64)) {
-			remove_ddw(pdn, true, DIRECT64_PROPNAME);
+	for_each_node_with_property(pdn, name) {
+		dma64 = of_get_property(pdn, name, &len);
+		if (!dma64 || len < sizeof(*dma64)) {
+			remove_ddw(pdn, true, name);
 			continue;
 		}
 
-		window = ddw_list_new_entry(pdn, direct64);
+		window = ddw_list_new_entry(pdn, dma64);
 		if (!window)
 			break;
 
@@ -935,6 +932,14 @@ static int find_existing_ddw_windows(void)
 		list_add(&window->list, &direct_window_list);
 		spin_unlock(&direct_window_list_lock);
 	}
+}
+
+static int find_existing_ddw_windows(void)
+{
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		return 0;
+
+	find_existing_ddw_windows_named(DIRECT64_PROPNAME);
 
 	return 0;
 }