dt-bindings: thermal: rcar-gen3-thermal: Convert bindings to json-schema

* DT bindings for Renesas R-Car Gen3 Thermal Sensor driver

On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal

sensors (THS) which are the analog circuits for measuring temperature (Tj)

inside the LSI.

Required properties:

- compatible		: "renesas,<soctype>-thermal",

			  Examples with soctypes are:

			    - "renesas,r8a774a1-thermal" (RZ/G2M)

			    - "renesas,r8a774b1-thermal" (RZ/G2N)

			    - "renesas,r8a7795-thermal" (R-Car H3)

			    - "renesas,r8a7796-thermal" (R-Car M3-W)

			    - "renesas,r8a77961-thermal" (R-Car M3-W+)

			    - "renesas,r8a77965-thermal" (R-Car M3-N)

			    - "renesas,r8a77980-thermal" (R-Car V3H)

- reg			: Address ranges of the thermal registers. Each sensor

			  needs one address range. Sorting must be done in

			  increasing order according to datasheet, i.e.

			  TSC1, TSC2, ...

- clocks		: Must contain a reference to the functional clock.

- #thermal-sensor-cells : must be <1>.

Optional properties:

- interrupts		: interrupts routed to the TSC (must be 3).

- power-domain		: Must contain a reference to the power domain. This

			  property is mandatory if the thermal sensor instance

			  is part of a controllable power domain.

Example:

	tsc: thermal@e6198000 {

		compatible = "renesas,r8a7795-thermal";

		reg = <0 0xe6198000 0 0x100>,

		      <0 0xe61a0000 0 0x100>,

		      <0 0xe61a8000 0 0x100>;

		interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 522>;

		power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;

		#thermal-sensor-cells = <1>;

	};

	thermal-zones {

		sensor_thermal1: sensor-thermal1 {

			polling-delay-passive = <250>;

			polling-delay = <1000>;

			thermal-sensors = <&tsc 0>;

			trips {

				sensor1_crit: sensor1-crit {

					temperature = <90000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};

		};

	};

# SPDX-License-Identifier: GPL-2.0-only

# Copyright (C) 2020 Renesas Electronics Corp.

%YAML 1.2

---

$id: http://devicetree.org/schemas/thermal/rcar-gen3-thermal.yaml#

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

title: Renesas R-Car Gen3 Thermal Sensor

description:

  On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal

  sensors (THS) which are the analog circuits for measuring temperature (Tj)

  inside the LSI.

maintainers:

  - Niklas Söderlund <niklas.soderlund@ragnatech.se>

properties:

  compatible:

    enum:

      - renesas,r8a774a1-thermal # RZ/G2M

      - renesas,r8a774b1-thermal # RZ/G2N

      - renesas,r8a7795-thermal  # R-Car H3

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

      - renesas,r8a77961-thermal # R-Car M3-W+

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

      - renesas,r8a77980-thermal # R-Car V3H

  reg:

    minItems: 2

    maxItems: 3

    items:

      - description: TSC1 registers

      - description: TSC2 registers

      - description: TSC3 registers

  interrupts:

    items:

      - description: TEMP1 interrupt

      - description: TEMP2 interrupt

      - description: TEMP3 interrupt

  clocks:

    maxItems: 1

  power-domains:

    maxItems: 1

  resets:

    maxItems: 1

  "#thermal-sensor-cells":

    const: 1

required:

  - compatible

  - reg

  - interrupts

  - clocks

  - power-domains

  - resets

  - "#thermal-sensor-cells"

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/power/r8a7795-sysc.h>

    tsc: thermal@e6198000 {

            compatible = "renesas,r8a7795-thermal";

            reg = <0xe6198000 0x100>,

                  <0xe61a0000 0x100>,

                  <0xe61a8000 0x100>;

            interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,

                         <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,

                         <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;

            clocks = <&cpg CPG_MOD 522>;

            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;

            resets = <&cpg 522>;

            #thermal-sensor-cells = <1>;

    };

    thermal-zones {

            sensor_thermal: sensor-thermal {

                    polling-delay-passive = <250>;

                    polling-delay = <1000>;

                    thermal-sensors = <&tsc 0>;

                    trips {

                            sensor1_crit: sensor1-crit {

                                    temperature = <90000>;

                                    hysteresis = <2000>;

                                    type = "critical";

                            };

                    };

            };

    };