diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
index 38b1fe18aa79..1f0c5aeba26e 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
@@ -67,6 +67,14 @@ properties:
       - const: dma_ck
       - const: xhci_ck
 
+  assigned-clocks:
+    minItems: 1
+    maxItems: 5
+
+  assigned-clock-parents:
+    minItems: 1
+    maxItems: 5
+
   phys:
     description:
       List of all PHYs used on this HCD, it's better to keep PHYs in order