[PATCH v2 1/1] dt-bindings: usb: cdns,usb3: use common usb-drd yaml

[Frank Li]

Use common usb-drd yaml for usb OTG related propteries to fix below
DTB_CHECK warning.

arch/arm64/boot/dts/freescale/imx8qxp-mek.dtb: usb@5b110000: usb@5b120000: 'port', 'usb-role-switch' do not match any of the regexes: 'pinctrl-[0-9]+'

Add "port" proptery to use connect type C connector and fix below warning.
arch/arm64/boot/dts/freescale/imx8qxp-mek.dtb: usb@5b110000: usb@5b120000: Unevaluated properties are not allowed ('port' was unexpected)

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---

Notes:
    change from v1 to v2
    - add dependences
    - remove dr-mode : true and usb-role-switch: true
    - update commit message
    
    pass dt_binding_check
    
    make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8  dt_binding_check DT_SCHEMA_FILES=cdns,usb3.yaml
      SCHEMA  Documentation/devicetree/bindings/processed-schema.json
      CHKDT   Documentation/devicetree/bindings
      LINT    Documentation/devicetree/bindings
      DTEX    Documentation/devicetree/bindings/usb/cdns,usb3.example.dts
      DTC_CHK Documentation/devicetree/bindings/usb/cdns,usb3.example.dtb

 .../devicetree/bindings/usb/cdns,usb3.yaml        | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
index 69a93a0722f07..f454ddd9bbaa6 100644
--- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
+++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
@@ -42,8 +42,11 @@ properties:
       - const: otg
       - const: wakeup
 
-  dr_mode:
-    enum: [host, otg, peripheral]
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      This port is used with the 'usb-role-switch' property to connect the
+      cdns3 to type C connector.
 
   maximum-speed:
     enum: [super-speed, high-speed, full-speed]
@@ -70,6 +73,9 @@ properties:
     description: Enable resetting of PHY if Rx fail is detected
     type: boolean
 
+dependencies:
+  port: [ usb-role-switch ]
+
 required:
   - compatible
   - reg
@@ -77,7 +83,10 @@ required:
   - interrupts
   - interrupt-names
 
-additionalProperties: false
+allOf:
+  - $ref: usb-drd.yaml#
+
+unevaluatedProperties: false
 
 examples:
   - |
-- 
2.34.1