dt-bindings: timer: Convert Allwinner A13 HSTimer to a schema

Allwinner SoCs High Speed Timer Controller

Required properties:

- compatible :	should be "allwinner,sun5i-a13-hstimer" or

		"allwinner,sun7i-a20-hstimer"

- reg : Specifies base physical address and size of the registers.

- interrupts :	The interrupts of these timers (2 for the sun5i IP, 4 for the sun7i

		one)

- clocks: phandle to the source clock (usually the AHB clock)

Optional properties:

- resets: phandle to a reset controller asserting the timer

Example:

timer@1c60000 {

	compatible = "allwinner,sun7i-a20-hstimer";

	reg = <0x01c60000 0x1000>;

	interrupts = <0 51 1>,

		     <0 52 1>,

		     <0 53 1>,

		     <0 54 1>;

	clocks = <&ahb1_gates 19>;

	resets = <&ahb1rst 19>;

};

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/timer/allwinner,sun5i-a13-hstimer.yaml#

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

title: Allwinner A13 High-Speed Timer Device Tree Bindings

maintainers:

  - Chen-Yu Tsai <wens@csie.org>

  - Maxime Ripard <maxime.ripard@bootlin.com>

properties:

  compatible:

    oneOf:

      - const: allwinner,sun5i-a13-hstimer

      - const: allwinner,sun7i-a20-hstimer

      - items:

          - const: allwinner,sun6i-a31-hstimer

          - const: allwinner,sun7i-a20-hstimer

  reg:

    maxItems: 1

  interrupts:

    minItems: 2

    maxItems: 4

    items:

      - description: Timer 0 Interrupt

      - description: Timer 1 Interrupt

      - description: Timer 2 Interrupt

      - description: Timer 3 Interrupt

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupts

  - clocks

if:

  properties:

    compatible:

      items:

        const: allwinner,sun5i-a13-hstimer

then:

  properties:

    interrupts:

      minItems: 2

      maxItems: 2

else:

  properties:

    interrupts:

      minItems: 4

      maxItems: 4

additionalProperties: false

examples:

  - |

    timer@1c60000 {

        compatible = "allwinner,sun7i-a20-hstimer";

        reg = <0x01c60000 0x1000>;

        interrupts = <0 51 1>,

                     <0 52 1>,

                     <0 53 1>,

                     <0 54 1>;

        clocks = <&ahb1_gates 19>;

        resets = <&ahb1rst 19>;

    };

...