The ref /schemas/graph.yaml#/properties/port forbids extra properties
which might be specified in subschemas, e.g. like in
usb/fcs,fsa4480.yaml.

Switch to port-base (and specify the endpoint with properties) to allow
such properties.

Fixes: fd2a052ccd69 ("dt-bindings: usb: add common Type-C USB Switch schema")
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
---
 Documentation/devicetree/bindings/usb/usb-switch.yaml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/usb-switch.yaml b/Documentation/devicetree/bindings/usb/usb-switch.yaml
index da76118e73a53c0e1c255ff115ff959d256816ba..89620191263023bec800dec114c0017c41b7c056 100644
--- a/Documentation/devicetree/bindings/usb/usb-switch.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-switch.yaml
@@ -26,11 +26,24 @@ properties:
     type: boolean
 
   port:
-    $ref: /schemas/graph.yaml#/properties/port
+    $ref: /schemas/graph.yaml#/$defs/port-base
     description:
       A port node to link the device to a TypeC controller for the purpose of
       handling altmode muxing and orientation switching.
 
+    properties:
+      endpoint:
+        $ref: /schemas/graph.yaml#/$defs/endpoint-base
+        unevaluatedProperties: false
+        properties:
+          data-lanes:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 1
+            maxItems: 8
+            uniqueItems: true
+            items:
+              maximum: 8
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
     properties:

-- 
2.49.0