dt-bindings: net: dsa: split generic port definition from dsa.yaml

Some switch may require to add additional binding to the node port.
Move DSA generic port definition to a dedicated yaml to permit this.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/dsa/dsa-port.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/dsa-port.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ethernet Switch port Device Tree Bindings
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+  - Florian Fainelli <f.fainelli@gmail.com>
+  - Vivien Didelot <vivien.didelot@gmail.com>
+
+description:
+  Ethernet switch port Description
+
+allOf:
+  - $ref: "http://devicetree.org/schemas/net/ethernet-controller.yaml#"
+
+properties:
+  reg:
+    description: Port number
+
+  label:
+    description:
+      Describes the label associated with this port, which will become
+      the netdev name
+    $ref: /schemas/types.yaml#/definitions/string
+
+  link:
+    description:
+      Should be a list of phandles to other switch's DSA port. This
+      port is used as the outgoing port towards the phandle ports. The
+      full routing information must be given, not just the one hop
+      routes to neighbouring switches
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+  ethernet:
+    description:
+      Should be a phandle to a valid Ethernet device node.  This host
+      device is what the switch port is connected to
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  dsa-tag-protocol:
+    description:
+      Instead of the default, the switch will use this tag protocol if
+      possible. Useful when a device supports multiple protocols and
+      the default is incompatible with the Ethernet device.
+    enum:
+      - dsa
+      - edsa
+      - ocelot
+      - ocelot-8021q
+      - seville
+
+  phy-handle: true
+
+  phy-mode: true
+
+  fixed-link: true
+
+  mac-address: true
+
+  sfp: true
+
+  managed: true
+
+  rx-internal-delay-ps: true
+
+  tx-internal-delay-ps: true
+
+required:
+  - reg
+
+additionalProperties: true
+
+...

Documentation/devicetree/bindings/net/dsa/dsa.yaml

@@ -46,65 +46,9 @@ patternProperties:
         type: object
         description: Ethernet switch ports
 
-        allOf:
-          - $ref: "http://devicetree.org/schemas/net/ethernet-controller.yaml#"
+        $ref: dsa-port.yaml#
 
-        properties:
-          reg:
-            description: Port number
-
-          label:
-            description:
-              Describes the label associated with this port, which will become
-              the netdev name
-            $ref: /schemas/types.yaml#/definitions/string
-
-          link:
-            description:
-              Should be a list of phandles to other switch's DSA port. This
-              port is used as the outgoing port towards the phandle ports. The
-              full routing information must be given, not just the one hop
-              routes to neighbouring switches
-            $ref: /schemas/types.yaml#/definitions/phandle-array
-
-          ethernet:
-            description:
-              Should be a phandle to a valid Ethernet device node.  This host
-              device is what the switch port is connected to
-            $ref: /schemas/types.yaml#/definitions/phandle
-
-          dsa-tag-protocol:
-            description:
-              Instead of the default, the switch will use this tag protocol if
-              possible. Useful when a device supports multiple protocols and
-              the default is incompatible with the Ethernet device.
-            enum:
-              - dsa
-              - edsa
-              - ocelot
-              - ocelot-8021q
-              - seville
-
-          phy-handle: true
-
-          phy-mode: true
-
-          fixed-link: true
-
-          mac-address: true
-
-          sfp: true
-
-          managed: true
-
-          rx-internal-delay-ps: true
-
-          tx-internal-delay-ps: true
-
-        required:
-          - reg
-
-        additionalProperties: false
+        unevaluatedProperties: false
 
 oneOf:
   - required: