dt-bindings: usb: xhci: Allow "iommus" and "dr_mode" properties

Allow "iommus" property as it's reasonable for any XHCI controller to be
behind an IOMMU. Allow "dr_mode" as an XHCI controller can be part of a
dual-role controller.

In particular, the Marvell Armada 8K XHCI controller uses both of these
properties.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250919223433.2399927-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/usb/generic-xhci.yaml b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
index a2b94a13899904b1f888fd0a85b3e226c5ad344a..8875911b43cc67b6fca2bf90af64e684383611b4 100644 (file)
--- a/Documentation/devicetree/bindings/usb/generic-xhci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
@@ -53,6 +53,14 @@ properties:
 
   dma-coherent: true
 
+  dr_mode:
+    enum:
+      - host
+      - otg
+
+  iommus:
+    maxItems: 1
+
   power-domains:
     maxItems: 1