dt-bindings: convert the binding document for mediatek PERICFG to yaml

Mediatek pericfg controller

===========================

The Mediatek pericfg controller provides various clocks and reset

outputs to the system.

Required Properties:

- compatible: Should be one of:

	- "mediatek,mt2701-pericfg", "syscon"

	- "mediatek,mt2712-pericfg", "syscon"

	- "mediatek,mt7622-pericfg", "syscon"

	- "mediatek,mt7623-pericfg", "mediatek,mt2701-pericfg", "syscon"

	- "mediatek,mt7629-pericfg", "syscon"

	- "mediatek,mt8135-pericfg", "syscon"

	- "mediatek,mt8173-pericfg", "syscon"

	- "mediatek,mt8183-pericfg", "syscon"

- #clock-cells: Must be 1

- #reset-cells: Must be 1

The pericfg 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:

pericfg: power-controller@10003000 {

	compatible = "mediatek,mt8173-pericfg", "syscon";

	reg = <0 0x10003000 0 0x1000>;

	#clock-cells = <1>;

	#reset-cells = <1>;

};

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,pericfg.yaml#"

$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: MediaTek Peripheral Configuration Controller

maintainers:

  - Bartosz Golaszewski <bgolaszewski@baylibre.com>

description:

  The Mediatek pericfg controller provides various clocks and reset outputs

  to the system.

properties:

  compatible:

    oneOf:

      - items:

        - enum:

          - mediatek,mt2701-pericfg

          - mediatek,mt2712-pericfg

          - mediatek,mt7622-pericfg

          - mediatek,mt7629-pericfg

          - mediatek,mt8135-pericfg

          - mediatek,mt8173-pericfg

          - mediatek,mt8183-pericfg

        - const: syscon

      - items:

        # Special case for mt7623 for backward compatibility

        - const: mediatek,mt7623-pericfg

        - const: mediatek,mt2701-pericfg

        - const: syscon

  reg:

    maxItems: 1

  '#clock-cells':

    const: 1

  '#reset-cells':

    const: 1

required:

  - compatible

  - reg

examples:

  - |

    pericfg@10003000 {

        compatible = "mediatek,mt8173-pericfg", "syscon";

        reg = <0x10003000 0x1000>;

        #clock-cells = <1>;

        #reset-cells = <1>;

    };

  - |

    pericfg@10003000 {

        compatible =  "mediatek,mt7623-pericfg", "mediatek,mt2701-pericfg", "syscon";

        reg = <0x10003000 0x1000>;

        #clock-cells = <1>;

        #reset-cells = <1>;

    };