dt-bindings: net: ti: k3-am654-cpsw-nuss: Add J721e CPSW9G support

Update bindings for TI K3 J721e SoC which contains 9 ports (8 external
ports) CPSW9G module and add compatible for it.

Changes made:
    - Add new compatible ti,j721e-cpswxg-nuss for CPSW9G.
    - Extend pattern properties for new compatible.
    - Change maximum number of CPSW ports to 8 for new compatible.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml

@@ -57,6 +57,7 @@ properties:
       - ti,am654-cpsw-nuss
       - ti,j7200-cpswxg-nuss
       - ti,j721e-cpsw-nuss
+      - ti,j721e-cpswxg-nuss
       - ti,am642-cpsw-nuss
 
   reg:
@@ -111,7 +112,7 @@ properties:
         const: 0
 
     patternProperties:
-      "^port@[1-4]$":
+      "^port@[1-8]$":
         type: object
         description: CPSWxG NUSS external ports
 
@@ -121,7 +122,7 @@ properties:
         properties:
           reg:
             minimum: 1
-            maximum: 4
+            maximum: 8
             description: CPSW port number
 
           phys:
@@ -186,12 +187,36 @@ allOf:
         properties:
           compatible:
             contains:
-              const: ti,j7200-cpswxg-nuss
+              const: ti,j721e-cpswxg-nuss
     then:
       properties:
         ethernet-ports:
           patternProperties:
-            "^port@[3-4]$": false
+            "^port@[5-8]$": false
+            "^port@[1-4]$":
+              properties:
+                reg:
+                  minimum: 1
+                  maximum: 4
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - ti,j721e-cpswxg-nuss
+                - ti,j7200-cpswxg-nuss
+    then:
+      properties:
+        ethernet-ports:
+          patternProperties:
+            "^port@[3-8]$": false
+            "^port@[1-2]$":
+              properties:
+                reg:
+                  minimum: 1
+                  maximum: 2
 
 additionalProperties: false