Merge branch 'dt-bindings-net-realtek-rtl9301-switch'

Chris Packham says:

====================
dt-bindings: net: realtek,rtl9301-switch (schema part)

This is my attempt at trying to sort out the mess I've created with the RTL9300
switch dt-bindings. Some context is available on [1] and [2].

The first patch just moves the binding from mfd/ to net/ (with an adjustment of
the internal path name). The next two patches are successors to patches already
sent as part of the series [3].

[1] - https://lore.kernel.org/lkml/20250204-eccentric-deer-of-felicity-02b7ee@krzk-bin/
[2] - https://lore.kernel.org/lkml/4e3c5d83-d215-4eff-bf02-6d420592df8f@alliedtelesis.co.nz/
[3] - https://lore.kernel.org/lkml/20250204030249.1965444-1-chris.packham@alliedtelesis.co.nz/
====================

Link: https://patch.msgid.link/20250218195216.1034220-1-chris.packham@alliedtelesis.co.nz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml

@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/realtek,rtl9301-mdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek RTL9300 MDIO Controller
+
+maintainers:
+  - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - realtek,rtl9302b-mdio
+              - realtek,rtl9302c-mdio
+              - realtek,rtl9303-mdio
+          - const: realtek,rtl9301-mdio
+      - const: realtek,rtl9301-mdio
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  reg:
+    maxItems: 1
+
+patternProperties:
+  '^mdio-bus@[0-3]$':
+    $ref: mdio.yaml#
+
+    properties:
+      reg:
+        maxItems: 1
+
+    required:
+      - reg
+
+    patternProperties:
+      '^ethernet-phy@[a-f0-9]+$':
+        type: object
+        $ref: ethernet-phy.yaml#
+        unevaluatedProperties: false
+
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mdio-controller@ca00 {
+      compatible = "realtek,rtl9301-mdio";
+      reg = <0xca00 0x200>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      mdio-bus@0 {
+        reg = <0>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet-phy@0 {
+          compatible = "ethernet-phy-ieee802.3-c45";
+          reg = <0>;
+        };
+      };
+
+      mdio-bus@1 {
+        reg = <1>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet-phy@0 {
+          compatible = "ethernet-phy-ieee802.3-c45";
+          reg = <0>;
+        };
+      };
+    };

Documentation/devicetree/bindings/net/realtek,rtl9301-switch.yaml

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/mfd/realtek,rtl9301-switch.yaml#
+$id: http://devicetree.org/schemas/net/realtek,rtl9301-switch.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Realtek Switch with Internal CPU
@@ -14,6 +14,8 @@ description:
   number of different peripherals are accessed through a common register block,
   represented here as a syscon node.
 
+$ref: ethernet-switch.yaml#/$defs/ethernet-ports
+
 properties:
   compatible:
     items:
@@ -28,12 +30,23 @@ properties:
   reg:
     maxItems: 1
 
+  interrupts:
+    maxItems: 2
+
+  interrupt-names:
+    items:
+      - const: switch
+      - const: nic
+
   '#address-cells':
     const: 1
 
   '#size-cells':
     const: 1
 
+  ethernet-ports:
+    type: object
+
 patternProperties:
   'reboot@[0-9a-f]+$':
     $ref: /schemas/power/reset/syscon-reboot.yaml#
@@ -41,9 +54,14 @@ patternProperties:
   'i2c@[0-9a-f]+$':
     $ref: /schemas/i2c/realtek,rtl9301-i2c.yaml#
 
+  'mdio-controller@[0-9a-f]+$':
+    $ref: realtek,rtl9301-mdio.yaml#
+
 required:
   - compatible
   - reg
+  - interrupts
+  - interrupt-names
 
 additionalProperties: false
 
@@ -52,6 +70,9 @@ examples:
     ethernet-switch@1b000000 {
       compatible = "realtek,rtl9301-switch", "syscon", "simple-mfd";
       reg = <0x1b000000 0x10000>;
+      interrupt-parent = <&intc>;
+      interrupts = <23>, <24>;
+      interrupt-names = "switch", "nic";
       #address-cells = <1>;
       #size-cells = <1>;
 
@@ -110,5 +131,45 @@ examples:
           };
         };
       };
+
+      mdio-controller@ca00 {
+        compatible = "realtek,rtl9301-mdio";
+        reg = <0xca00 0x200>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mdio-bus@0 {
+          reg = <0>;
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          phy1: ethernet-phy@0 {
+            reg = <0>;
+          };
+        };
+        mdio-bus@1 {
+          reg = <1>;
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          phy2: ethernet-phy@0 {
+            reg = <0>;
+          };
+        };
+      };
+
+      ethernet-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port@0 {
+          reg = <0>;
+          phy-handle = <&phy1>;
+        };
+        port@1 {
+          reg = <1>;
+          phy-handle = <&phy2>;
+        };
+      };
     };