[PATCH net-next] dt-bindings: net: airoha: add AN7589 MDIO controller

[John Crispin <john@phrozen.org>]

The AN7589 carries the AN7583 SCU MDIO controller three times, the
third one at offset 0xd8. Document it as a fallback pair on the AN7583
compatible. Allow the new offset for the AN7589 only.

Signed-off-by: John Crispin <john@phrozen.org>
---
 .../bindings/net/airoha,an7583-mdio.yaml      | 25 +++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml b/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml
index 3e7e68ec1560..41dc295ce6cf 100644
--- a/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml
@@ -17,14 +17,20 @@ description:
   The other 2 (that this schema describe) live under the SCU
   register supporting both C22 and C45 PHYs.
 
+  The Airoha AN7589 has a third controller of this kind under the SCU.
+
 $ref: mdio.yaml#
 
 properties:
   compatible:
-    const: airoha,an7583-mdio
+    oneOf:
+      - const: airoha,an7583-mdio
+      - items:
+          - const: airoha,an7589-mdio
+          - const: airoha,an7583-mdio
 
   reg:
-    enum: [0xc8, 0xcc]
+    maxItems: 1
 
   clocks:
     maxItems: 1
@@ -41,6 +47,21 @@ required:
   - clocks
   - resets
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: airoha,an7589-mdio
+    then:
+      properties:
+        reg:
+          enum: [0xc8, 0xcc, 0xd8]
+    else:
+      properties:
+        reg:
+          enum: [0xc8, 0xcc]
+
 unevaluatedProperties: false
 
 examples:

base-commit: ddfe51b0a0f5dc9e415cc2c8ad8db17532dd426b
-- 
2.34.1