dt-bindings: usb: snps,dwc3: document HS & SS OF graph ports

Document the optional ports subnode to describe the High-Speed and Super-Speed connections as separate OF graph links. The ports property is an alternative to the already documented single port subnode property. Reviewed-by: Rob Herring <[email protected]> Signed-off-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/20230130-topic-sm8450-upstream-pmic-glink-v5-5-552f3b721f9e@linaro.org Signed-off-by: Greg Kroah-Hartman <[email protected]>
noroot · Mar 23, 2023 · a33113f · a33113f
1 parent 62b5412
commit a33113f
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -377,6 +377,22 @@ properties:
       This port is used with the 'usb-role-switch' property  to connect the
       dwc3 to type C connector.
 
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description:
+      Those ports should be used with any connector to the data bus of this
+      controller using the OF graph bindings specified if the "usb-role-switch"
+      property is used.
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: High Speed (HS) data bus.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Super Speed (SS) data bus.
+
   wakeup-source:
     $ref: /schemas/types.yaml#/definitions/flag
     description: