dt-bindings: phy: tegra-xusb: Document Type C support

Each XUSB PHY can be hooked up to a Type C controller via a port
property, so document this in the bindings accordingly.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: thierryreding

Documentation/devicetree/bindings/phy/nvidia,tegra194-xusb-padctl.yaml

@@ -230,6 +230,10 @@ properties:
           connector:
             type: object
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
           mode:
             description: A string that determines the mode in which to
               run the port.
@@ -256,7 +260,12 @@ properties:
               voltage.
 
         dependencies:
-          usb-role-switch: [ connector ]
+          usb-role-switch:
+            oneOf:
+              - required:
+                  - connector
+              - required:
+                  - port
 
       usb2-1:
         type: object
@@ -268,6 +277,10 @@ properties:
           connector:
             type: object
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
           mode:
             description: A string that determines the mode in which to
               run the port.
@@ -306,6 +319,10 @@ properties:
           connector:
             type: object
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
           mode:
             description: A string that determines the mode in which to
               run the port.
@@ -344,6 +361,10 @@ properties:
           connector:
             type: object
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
           mode:
             description: A string that determines the mode in which to
               run the port.
@@ -405,6 +426,10 @@ properties:
             description: A phandle to the regulator supplying the VBUS
               voltage.
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
       usb3-1:
         type: object
         additionalProperties: false
@@ -438,6 +463,10 @@ properties:
             description: A phandle to the regulator supplying the VBUS
               voltage.
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
       usb3-2:
         type: object
         additionalProperties: false
@@ -471,6 +500,10 @@ properties:
             description: A phandle to the regulator supplying the VBUS
               voltage.
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
       usb3-3:
         type: object
         additionalProperties: false
@@ -504,6 +537,10 @@ properties:
             description: A phandle to the regulator supplying the VBUS
               voltage.
 
+          port:
+            description: connection to a USB Type C controller
+            $ref: /schemas/graph.yaml#/properties/port
+
 additionalProperties: false
 
 required: