[RFC 3/5] dt-bindings: power: Add binding for MediaTek MT7988 topmisc power controller

[Frank Wunderlich <linux@fw-web.de>]

From: Frank Wunderlich <frank-w@public-files.de>

Topmisc is a systemcontroller used for xs-phy and ethernet on  mt7988.
Add binding for it.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 .../power/mediatek,power-controller.yaml      | 35 +++++++++++++------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml b/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
index 591a080ca3ff..60d2fc7963e5 100644
--- a/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
+++ b/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
@@ -22,17 +22,27 @@ properties:
     pattern: '^power-controller(@[0-9a-f]+)?$'
 
   compatible:
-    enum:
-      - mediatek,mt6735-power-controller
-      - mediatek,mt6795-power-controller
-      - mediatek,mt8167-power-controller
-      - mediatek,mt8173-power-controller
-      - mediatek,mt8183-power-controller
-      - mediatek,mt8186-power-controller
-      - mediatek,mt8188-power-controller
-      - mediatek,mt8192-power-controller
-      - mediatek,mt8195-power-controller
-      - mediatek,mt8365-power-controller
+    oneOf:
+      - items:
+        - enum:
+          - mediatek,mt6735-power-controller
+          - mediatek,mt6795-power-controller
+          - mediatek,mt8167-power-controller
+          - mediatek,mt8173-power-controller
+          - mediatek,mt8183-power-controller
+          - mediatek,mt8186-power-controller
+          - mediatek,mt8188-power-controller
+          - mediatek,mt8192-power-controller
+          - mediatek,mt8195-power-controller
+          - mediatek,mt8365-power-controller
+      - items:
+        - enum:
+          - mediatek,mt7988-topmisc
+        - const: syscon
+        - const: mediatek,mt7988-power-controller
+
+  reg:
+    maxItems: 1
 
   '#power-domain-cells':
     const: 1
@@ -43,6 +53,9 @@ properties:
   '#size-cells':
     const: 0
 
+  '#clock-cells':
+    const: 1
+
 patternProperties:
   "^power-domain@[0-9a-f]+$":
     $ref: "#/$defs/power-domain-node"
-- 
2.43.0