dt-bindings: arm: mediatek: infracfg: Convert to DT schema

Convert infracfg bindings to DT schema format. Not all drivers
currently implement resets, so #reset-cells is made a required
property only for those that do. Using power-controller in the
example node name makes #power-domain-cells required causing
a dt_binding_check error. To solve this, the node is renamed to
syscon@10001000.

Signed-off-by: Yassine Oudjana <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt

···
-Mediatek infracfg controller
-============================
-
-The Mediatek infracfg controller provides various clocks and reset
-outputs to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
-	- "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt2712-infracfg", "syscon"
-	- "mediatek,mt6765-infracfg", "syscon"
-	- "mediatek,mt6779-infracfg_ao", "syscon"
-	- "mediatek,mt6797-infracfg", "syscon"
-	- "mediatek,mt7622-infracfg", "syscon"
-	- "mediatek,mt7623-infracfg", "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt7629-infracfg", "syscon"
-	- "mediatek,mt7986-infracfg", "syscon"
-	- "mediatek,mt8135-infracfg", "syscon"
-	- "mediatek,mt8167-infracfg", "syscon"
-	- "mediatek,mt8173-infracfg", "syscon"
-	- "mediatek,mt8183-infracfg", "syscon"
-	- "mediatek,mt8516-infracfg", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The infracfg controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-Also it uses the common reset controller binding from
-Documentation/devicetree/bindings/reset/reset.txt.
-The available reset outputs are defined in
-dt-bindings/reset/mt*-resets.h
-
-Example:
-
-infracfg: power-controller@10001000 {
-	compatible = "mediatek,mt8173-infracfg", "syscon";
-	reg = <0 0x10001000 0 0x1000>;
-	#clock-cells = <1>;
-	#reset-cells = <1>;
-};

Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml

···
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek Infrastructure System Configuration Controller
+
+maintainers:
+  - Matthias Brugger <[e-mail]>
+
+description:
+  The Mediatek infracfg controller provides various clocks and reset outputs
+  to the system. The clock values can be found in <dt-bindings/clock/mt*-clk.h>,
+  and reset values in <dt-bindings/reset/mt*-reset.h> and
+  <dt-bindings/reset/mt*-resets.h>.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt2701-infracfg
+              - mediatek,mt2712-infracfg
+              - mediatek,mt6765-infracfg
+              - mediatek,mt6779-infracfg_ao
+              - mediatek,mt6797-infracfg
+              - mediatek,mt7622-infracfg
+              - mediatek,mt7629-infracfg
+              - mediatek,mt7986-infracfg
+              - mediatek,mt8135-infracfg
+              - mediatek,mt8167-infracfg
+              - mediatek,mt8173-infracfg
+              - mediatek,mt8183-infracfg
+              - mediatek,mt8516-infracfg
+          - const: syscon
+      - items:
+          - const: mediatek,mt7623-infracfg
+          - const: mediatek,mt2701-infracfg
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - mediatek,mt2701-infracfg
+          - mediatek,mt2712-infracfg
+          - mediatek,mt7622-infracfg
+          - mediatek,mt7986-infracfg
+          - mediatek,mt8135-infracfg
+          - mediatek,mt8173-infracfg
+          - mediatek,mt8183-infracfg
+then:
+  required:
+    - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    infracfg: clock-controller@10001000 {
+        compatible = "mediatek,mt8173-infracfg", "syscon";
+        reg = <0x10001000 0x1000>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };