dt-bindings: power: Convert Ux500 PM domains to schema

Convert the legacy Ux500 power domain text binding to YAML.

Move it under bindings/power.

Reference the generic power-domain schema.

Update MAINTAINERS for the new path.

Assisted-by: LLM
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>

Documentation/devicetree/bindings/arm/ux500/power_domain.txt

@@ -1,35 +0,0 @@
-* ST-Ericsson UX500 PM Domains
-
-UX500 supports multiple PM domains which are used to gate power to one or
-more peripherals on the SOC.
-
-The implementation of PM domains for UX500 are based upon the generic PM domain
-and use the corresponding DT bindings.
-
-==PM domain providers==
-
-Required properties:
- - compatible: Must be "stericsson,ux500-pm-domains".
- - #power-domain-cells : Number of cells in a power domain specifier, must be 1.
-
-Example:
-	pm_domains: pm_domains0 {
-		compatible = "stericsson,ux500-pm-domains";
-		#power-domain-cells = <1>;
-	};
-
-==PM domain consumers==
-
-Required properties:
- - power-domains: A phandle and PM domain specifier. Below are the list of
-		valid specifiers:
-
-		Index	Specifier
-		-----	---------
-		0	DOMAIN_VAPE
-
-Example:
-	sdi0_per1@80126000 {
-		compatible = "arm,pl18x", "arm,primecell";
-		power-domains = <&pm_domains DOMAIN_VAPE>
-	};

Documentation/devicetree/bindings/power/stericsson,ux500-pm-domains.yaml

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/stericsson,ux500-pm-domains.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST-Ericsson UX500 power domains
+
+maintainers:
+  - Linus Walleij <linusw@kernel.org>
+  - Ulf Hansson <ulfh@kernel.org>
+
+description:
+  The UX500 power domain controller gates power to one or more peripherals on
+  the SoC. Domain specifiers use one cell containing one of the DOMAIN_*
+  indexes defined in include/dt-bindings/arm/ux500_pm_domains.h.
+
+allOf:
+  - $ref: power-domain.yaml#
+
+properties:
+  compatible:
+    const: stericsson,ux500-pm-domains
+
+  '#power-domain-cells':
+    const: 1
+
+required:
+  - compatible
+  - '#power-domain-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/arm/ux500_pm_domains.h>
+
+    pm_domains: power-controller {
+        compatible = "stericsson,ux500-pm-domains";
+        #power-domain-cells = <1>;
+    };

MAINTAINERS

@@ -3273,6 +3273,7 @@ F:	Documentation/devicetree/bindings/arm/ux500.yaml
 F:	Documentation/devicetree/bindings/arm/ux500/
 F:	Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml
 F:	Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
+F:	Documentation/devicetree/bindings/power/stericsson,ux500-pm-domains.yaml
 F:	arch/arm/boot/dts/st/ste-*
 F:	arch/arm/mach-nomadik/
 F:	arch/arm/mach-ux500/