dt-bindings: power: Convert Samsung Exynos Power Domain bindings to json-schema

Convert Samsung Exynos Soc Power Domain bindings to DT schema format using
json-schema.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>

Documentation/devicetree/bindings/iommu/samsung,sysmmu.yaml

···
     description: |
       Required if the System MMU is needed to gate its power.
       Please refer to the following document:
-      Documentation/devicetree/bindings/power/pd-samsung.txt
+      Documentation/devicetree/bindings/power/pd-samsung.yaml
     maxItems: 1
 
 required:

Documentation/devicetree/bindings/power/pd-samsung.txt

···
-* Samsung Exynos Power Domains
-
-Exynos processors include support for multiple power domains which are used
-to gate power to one or more peripherals on the processor.
-
-Required Properties:
-- compatible: should be one of the following.
-    * samsung,exynos4210-pd - for exynos4210 type power domain.
-    * samsung,exynos5433-pd - for exynos5433 type power domain.
-- reg: physical base address of the controller and length of memory mapped
-    region.
-- #power-domain-cells: number of cells in power domain specifier;
-    must be 0.
-
-Optional Properties:
-- label: Human readable string with domain name. Will be visible in userspace
-	to let user to distinguish between multiple domains in SoC.
-- power-domains: phandle pointing to the parent power domain, for more details
-		 see Documentation/devicetree/bindings/power/power_domain.txt
-
-Deprecated Properties:
-- clocks
-- clock-names
-
-Node of a device using power domains must have a power-domains property
-defined with a phandle to respective power domain.
-
-Example:
-
-	lcd0: power-domain-lcd0 {
-		compatible = "samsung,exynos4210-pd";
-		reg = <0x10023C00 0x10>;
-		#power-domain-cells = <0>;
-		label = "LCD0";
-	};
-
-	mfc_pd: power-domain@10044060 {
-		compatible = "samsung,exynos4210-pd";
-		reg = <0x10044060 0x20>;
-		#power-domain-cells = <0>;
-		label = "MFC";
-	};
-
-See Documentation/devicetree/bindings/power/power_domain.txt for description
-of consumer-side bindings.

Documentation/devicetree/bindings/power/pd-samsung.yaml

···
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/pd-samsung.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Power Domains
+
+maintainers:
+  - Krzysztof Kozlowski <[e-mail]>
+
+description: |+
+  Exynos processors include support for multiple power domains which are used
+  to gate power to one or more peripherals on the processor.
+
+allOf:
+  - $ref: power-domain.yaml#
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos4210-pd
+      - samsung,exynos5433-pd
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    deprecated: true
+    maxItems: 1
+
+  clock-names:
+    deprecated: true
+    maxItems: 1
+
+  label:
+    description:
+      Human readable string with domain name. Will be visible in userspace
+      to let user to distinguish between multiple domains in SoC.
+
+  "#power-domain-cells":
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - "#power-domain-cells"
+  - reg
+
+examples:
+  - |
+    lcd0_pd: power-domain@10023c80 {
+        compatible = "samsung,exynos4210-pd";
+        reg = <0x10023c80 0x20>;
+        #power-domain-cells = <0>;
+        label = "LCD0";
+    };
+
+    mfc_pd: power-domain@10044060 {
+        compatible = "samsung,exynos4210-pd";
+        reg = <0x10044060 0x20>;
+        #power-domain-cells = <0>;
+        label = "MFC";
+    };

MAINTAINERS

···
 F:	include/linux/soc/samsung/
 F:	Documentation/arm/samsung/
 F:	Documentation/devicetree/bindings/arm/samsung/
-F:	Documentation/devicetree/bindings/power/pd-samsung.txt
+F:	Documentation/devicetree/bindings/power/pd-samsung.yaml
 N:	exynos
 
 ARM/SAMSUNG MOBILE MACHINE SUPPORT