dt-bindings: power: supply: axp20x: Convert to DT schema format

Convert the binding to DT schema format.

Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt

-AXP20X and AXP22X PMICs' AC power supply
-
-Required Properties:
- - compatible: One of:
-			"x-powers,axp202-ac-power-supply"
-			"x-powers,axp221-ac-power-supply"
-			"x-powers,axp813-ac-power-supply"
-
-This node is a subnode of the axp20x PMIC.
-
-The AXP20X can read the current current and voltage supplied by AC by
-reading ADC channels from the AXP20X ADC.
-
-The AXP22X is only able to tell if an AC power supply is present and
-usable.
-
-AXP813/AXP803 are able to limit current and supply voltage
-
-Example:
-
-&axp209 {
-	ac_power_supply: ac-power-supply {
-		compatible = "x-powers,axp202-ac-power-supply";
-	};
-};

Documentation/devicetree/bindings/power/supply/axp20x_battery.txt

-AXP20x and AXP22x battery power supply
-
-Required Properties:
- - compatible, one of:
-			"x-powers,axp209-battery-power-supply"
-			"x-powers,axp221-battery-power-supply"
-			"x-powers,axp813-battery-power-supply"
-
-This node is a subnode of its respective PMIC DT node.
-
-The supported devices can read the battery voltage, charge and discharge
-currents of the battery by reading ADC channels from the ADC.
-
-Example:
-
-&axp209 {
-	battery_power_supply: battery-power-supply {
-		compatible = "x-powers,axp209-battery-power-supply";
-	}
-};

Documentation/devicetree/bindings/power/supply/axp20x_usb_power.txt

-AXP20x USB power supply
-
-Required Properties:
--compatible: One of: "x-powers,axp202-usb-power-supply"
-                     "x-powers,axp221-usb-power-supply"
-                     "x-powers,axp223-usb-power-supply"
-		     "x-powers,axp813-usb-power-supply"
-
-The AXP223 PMIC shares most of its behaviour with the AXP221 but has slight
-variations such as the former being able to set the VBUS power supply max
-current to 100mA, unlike the latter.
-
-This node is a subnode of the axp20x PMIC.
-
-Example:
-
-axp209: pmic@34 {
-	compatible = "x-powers,axp209";
-	reg = <0x34>;
-	interrupt-parent = <&nmi_intc>;
-	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
-	interrupt-controller;
-	#interrupt-cells = <1>;
-
-	regulators {
-		x-powers,dcdc-freq = <1500>;
-
-		vdd_cpu: dcdc2 {
-			regulator-always-on;
-			regulator-min-microvolt = <1000000>;
-			regulator-max-microvolt = <1450000>;
-			regulator-name = "vdd-cpu";
-		};
-
-		...
-	};
-
-	usb-power-supply: usb-power-supply {
-		compatible = "x-powers,axp202-usb-power-supply";
-	};
-};

Documentation/devicetree/bindings/power/supply/x-powers,axp20x-ac-power-supply.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-ac-power-supply.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: AXP20x AC power-supply
+
+description: |
+  The AXP20X can read the current current and voltage supplied by AC by
+  reading ADC channels from the AXP20X ADC. The AXP22X is only able to
+  tell if an AC power supply is present and usable. AXP813/AXP803 are
+  able to limit current and supply voltage
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Sebastian Reichel <sre@kernel.org>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    enum:
+      - x-powers,axp202-ac-power-supply
+      - x-powers,axp221-ac-power-supply
+      - x-powers,axp813-ac-power-supply
+
+required:
+  - compatible
+
+additionalProperties: false

Documentation/devicetree/bindings/power/supply/x-powers,axp20x-battery-power-supply.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-battery-power-supply.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: AXP20x Battery power-supply
+
+description: |
+  The supported devices can read the battery voltage, charge and discharge
+  currents of the battery by reading ADC channels from the ADC.
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Sebastian Reichel <sre@kernel.org>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    enum:
+      - x-powers,axp209-battery-power-supply
+      - x-powers,axp221-battery-power-supply
+      - x-powers,axp813-battery-power-supply
+
+required:
+  - compatible
+
+additionalProperties: false

Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-usb-power-supply.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: AXP20x USB power-supply
+
+description: |
+  The AXP223 PMIC shares most of its behaviour with the AXP221 but has slight
+  variations such as the former being able to set the VBUS power supply max
+  current to 100mA, unlike the latter.
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Sebastian Reichel <sre@kernel.org>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    enum:
+      - x-powers,axp202-usb-power-supply
+      - x-powers,axp221-usb-power-supply
+      - x-powers,axp223-usb-power-supply
+      - x-powers,axp813-usb-power-supply
+
+
+required:
+  - compatible
+
+additionalProperties: false