dt-bindings: serial: Convert UniPhier UART to json-schema

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

%YAML 1.2

---

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

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

title: UniPhier UART controller

maintainers:

  - Masahiro Yamada <yamada.masahiro@socionext.com>

properties:

  compatible:

    const: socionext,uniphier-uart

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  clocks:

    minItems: 1

  auto-flow-control:

    description: enable automatic flow control support.

    $ref: /schemas/types.yaml#/definitions/flag

required:

  - compatible

  - reg

  - interrupts

  - clocks

examples:

  - |

    aliases {

        serial0 = &serial0;

    };

    serial0: serial@54006800 {

        compatible = "socionext,uniphier-uart";

        reg = <0x54006800 0x40>;

        interrupts = <0 33 4>;

        clocks = <&uart_clk>;

    };

UniPhier UART controller

Required properties:

- compatible: should be "socionext,uniphier-uart".

- reg: offset and length of the register set for the device.

- interrupts: a single interrupt specifier.

- clocks: phandle to the input clock.

Optional properties:

-auto-flow-control: enable automatic flow control support.

Example:

	aliases {

		serial0 = &serial0;

	};

	serial0: serial@54006800 {

		compatible = "socionext,uniphier-uart";

		reg = <0x54006800 0x40>;

		interrupts = <0 33 4>;

		clocks = <&uart_clk>;

	};