dt-bindings: pwm: renesas: tpu: convert bindings to json-schema

* Renesas R-Car Timer Pulse Unit PWM Controller

Required Properties:

  - compatible: must contain one or more of the following:

    - "renesas,tpu-r8a73a4": for R8A73A4 (R-Mobile APE6) compatible PWM controller.

    - "renesas,tpu-r8a7740": for R8A7740 (R-Mobile A1) compatible PWM controller.

    - "renesas,tpu-r8a7743": for R8A7743 (RZ/G1M) compatible PWM controller.

    - "renesas,tpu-r8a7744": for R8A7744 (RZ/G1N) compatible PWM controller.

    - "renesas,tpu-r8a7745": for R8A7745 (RZ/G1E) compatible PWM controller.

    - "renesas,tpu-r8a7790": for R8A7790 (R-Car H2) compatible PWM controller.

    - "renesas,tpu-r8a77970": for R8A77970 (R-Car V3M) compatible PWM

			      controller.

    - "renesas,tpu-r8a77980": for R8A77980 (R-Car V3H) compatible PWM

			      controller.

    - "renesas,tpu": for the generic TPU PWM controller; this is a fallback for

		     the entries listed above.

  - reg: Base address and length of each memory resource used by the PWM

    controller hardware module.

  - #pwm-cells: should be 3. See pwm.txt in this directory for a description of

    the cells format. The only third cell flag supported by this binding is

    PWM_POLARITY_INVERTED.

Please refer to pwm.txt in this directory for details of the common PWM bindings

used by client devices.

Example: R8A7740 (R-Mobile A1) TPU controller node

	tpu: pwm@e6600000 {

		compatible = "renesas,tpu-r8a7740", "renesas,tpu";

		reg = <0xe6600000 0x148>;

		#pwm-cells = <3>;

	};

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/pwm/renesas,tpu-pwm.yaml#

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

title: Renesas R-Car Timer Pulse Unit PWM Controller

maintainers:

  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

properties:

  compatible:

    items:

      - enum:

          - renesas,tpu-r8a73a4   # R-Mobile APE6

          - renesas,tpu-r8a7740   # R-Mobile A1

          - renesas,tpu-r8a7743   # RZ/G1M

          - renesas,tpu-r8a7744   # RZ/G1N

          - renesas,tpu-r8a7745   # RZ/G1E

          - renesas,tpu-r8a7790   # R-Car H2

          - renesas,tpu-r8a7795   # R-Car H3

          - renesas,tpu-r8a7796   # R-Car M3-W

          - renesas,tpu-r8a77965  # R-Car M3-N

          - renesas,tpu-r8a77970  # R-Car V3M

          - renesas,tpu-r8a77980  # R-Car V3H

      - const: renesas,tpu

  reg:

    # Base address and length of each memory resource used by the PWM

    # controller hardware module.

    maxItems: 1

  interrupts:

    maxItems: 1

  '#pwm-cells':

    # should be 3. See pwm.txt in this directory for a description of

    # the cells format. The only third cell flag supported by this binding is

    # PWM_POLARITY_INVERTED.

    const: 3

  clocks:

    maxItems: 1

  power-domains:

    maxItems: 1

  resets:

    maxItems: 1

required:

  - compatible

  - reg

  - '#pwm-cells'

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/r8a7740-clock.h>

    tpu: pwm@e6600000 {

        compatible = "renesas,tpu-r8a7740", "renesas,tpu";

        reg = <0xe6600000 0x148>;

        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;

        power-domains = <&pd_a3sp>;

        #pwm-cells = <3>;

    };