diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
index b6a7cb32f61e..835b6db00c27 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
@@ -77,6 +77,9 @@ properties:
   vpcie12v-supply:
     description: The 12v regulator to use for PCIe.
 
+  iommu-map: true
+  iommu-map-mask: true
+
 required:
   - compatible
   - reg