spi: Convert UniPhier SPI controller to json-schema

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/socionext,uniphier-spi.yaml#

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

title: Socionext UniPhier SPI controller

description: |

  UniPhier SoCs have SCSSI which supports SPI single channel.

maintainers:

  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

  - Keiji Hayashibara <hayashibara.keiji@socionext.com>

allOf:

  - $ref: spi-controller.yaml#

properties:

  "#address-cells": true

  "#size-cells": true

  compatible:

    const: socionext,uniphier-scssi

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupts

  - clocks

  - resets

  - "#address-cells"

  - "#size-cells"

examples:

  - |

    spi0: spi@54006000 {

        compatible = "socionext,uniphier-scssi";

        reg = <0x54006000 0x100>;

        #address-cells = <1>;

        #size-cells = <0>;

        interrupts = <0 39 4>;

        clocks = <&peri_clk 11>;

        resets = <&peri_rst 11>;

    };

Socionext UniPhier SPI controller driver

UniPhier SoCs have SCSSI which supports SPI single channel.

Required properties:

 - compatible: should be "socionext,uniphier-scssi"

 - reg: address and length of the spi master registers

 - #address-cells: must be <1>, see spi-bus.txt

 - #size-cells: must be <0>, see spi-bus.txt

 - interrupts: a single interrupt specifier

 - pinctrl-names: should be "default"

 - pinctrl-0: pin control state for the default mode

 - clocks: a phandle to the clock for the device

 - resets: a phandle to the reset control for the device

Example:

spi0: spi@54006000 {

	compatible = "socionext,uniphier-scssi";

	reg = <0x54006000 0x100>;

	#address-cells = <1>;

	#size-cells = <0>;

	interrupts = <0 39 4>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_spi0>;

	clocks = <&peri_clk 11>;

	resets = <&peri_rst 11>;

};