regulator: arizona-regulator: Move binding over to dtschema

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/regulator/arizona-regulator.txt

-Cirrus Logic Arizona class audio SoCs
-
-These devices are audio SoCs with extensive digital capabilities and a range
-of analogue I/O.
-
-This document lists regulator specific bindings, see the primary binding
-document:
-  For Wolfson Microelectronic Arizona codecs: ../mfd/arizona.txt
-  For Cirrus Logic Madera codecs: ../mfd/madera.txt
-
-Optional properties:
-  - wlf,ldoena : GPIO specifier for the GPIO controlling LDOENA
-
-Optional subnodes:
-  - ldo1 : Initial data for the LDO1 regulator, as covered in
-    Documentation/devicetree/bindings/regulator/regulator.txt
-  - micvdd : Initial data for the MICVDD regulator, as covered in
-    Documentation/devicetree/bindings/regulator/regulator.txt

Documentation/devicetree/bindings/regulator/wlf,arizona.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/wlf,arizona.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic/Wolfson Microelectronics Arizona/Madera class audio SoCs
+
+maintainers:
+  - patches@opensource.cirrus.com
+
+description: |
+  These devices are audio SoCs with extensive digital capabilities and a
+  range of analogue I/O.
+
+  This document lists regulator specific bindings, see the primary binding
+  document. For Wolfson Microelectronic Arizona codecs ../mfd/wlf,arizona.yaml
+  and for Cirrus Logic Madera codecs ../mfd/madera.txt
+
+properties:
+  wlf,ldoena:
+    description:
+      GPIO specifier for the GPIO controlling LDOENA.
+    $ref: "/schemas/types.yaml#/definitions/phandle-array"
+    maxItems: 1
+
+  ldo1:
+    description:
+      Initial data for the LDO1 regulator.
+    $ref: "regulator.yaml#"
+    type: object
+
+  micvdd:
+    description:
+      Initial data for the MICVDD regulator.
+    $ref: "regulator.yaml#"
+    type: object