[PATCH v2 2/2] dt-bindings: usb: richtek,rt1711h: add missing 'port' property

[Akash Sukhavasi <akash.sukhavasi@gmail.com>]

The schema declares 'additionalProperties: false' but omits the
top-level 'port' property, which hi3660-hikey960.dts uses to
describe the role-switch graph endpoint. This causes dtbs_check
to emit:

  hi3660-hikey960.dtb: rt1711h@4e (richtek,rt1711h): 'port' does
  not match any of the regexes: '^pinctrl-[0-9]+$'

Add the missing property using /schemas/graph.yaml#/properties/port,
following the pattern used by realtek,rts5411.yaml and other USB
controller bindings.

Update the example accordingly.

Signed-off-by: Akash Sukhavasi <akash.sukhavasi@gmail.com>
---
 .../devicetree/bindings/usb/richtek,rt1711h.yaml    | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml b/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml
index 7ded36384..05ffc33a2 100644
--- a/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml
+++ b/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml
@@ -52,6 +52,13 @@ properties:
     description:
       Properties for usb c connector.
 
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      OF graph port describing the connection to the USB role switch
+      consumer (e.g., a dwc3 controller with usb-role-switch), used to
+      convey type-C data-role changes signaled by the TCPC.
+
 additionalProperties: false
 
 required:
@@ -108,6 +115,12 @@ examples:
             };
           };
         };
+
+        port {
+          endpoint {
+            remote-endpoint = <&usb_role_switch>;
+          };
+        };
       };
     };
 ...
-- 
2.54.0