rcar-gen3-thermal.yaml

  1# SPDX-License-Identifier: GPL-2.0-only
  2# Copyright (C) 2020 Renesas Electronics Corp.
  3%YAML 1.2
  4---
  5$id: http://devicetree.org/schemas/thermal/rcar-gen3-thermal.yaml#
  6$schema: http://devicetree.org/meta-schemas/core.yaml#
  7
  8title: Renesas R-Car Gen3 Thermal Sensor
  9
 10description:
 11  On most R-Car Gen3 and later SoCs, the thermal sensor controllers (TSC)
 12  control the thermal sensors (THS) which are the analog circuits for
 13  measuring temperature (Tj) inside the LSI.
 14
 15maintainers:
 16  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
 17
 18$ref: thermal-sensor.yaml#
 19
 20properties:
 21  compatible:
 22    enum:
 23      - renesas,r8a774a1-thermal # RZ/G2M
 24      - renesas,r8a774b1-thermal # RZ/G2N
 25      - renesas,r8a774e1-thermal # RZ/G2H
 26      - renesas,r8a7795-thermal  # R-Car H3
 27      - renesas,r8a7796-thermal  # R-Car M3-W
 28      - renesas,r8a77961-thermal # R-Car M3-W+
 29      - renesas,r8a77965-thermal # R-Car M3-N
 30      - renesas,r8a77980-thermal # R-Car V3H
 31      - renesas,r8a779a0-thermal # R-Car V3U
 32      - renesas,r8a779f0-thermal # R-Car S4-8
 33      - renesas,r8a779g0-thermal # R-Car V4H
 34      - renesas,r8a779h0-thermal # R-Car V4M
 35
 36  reg: true
 37
 38  interrupts:
 39    items:
 40      - description: TEMP1 interrupt
 41      - description: TEMP2 interrupt
 42      - description: TEMP3 interrupt
 43
 44  clocks:
 45    maxItems: 1
 46
 47  power-domains:
 48    maxItems: 1
 49
 50  resets:
 51    maxItems: 1
 52
 53  "#thermal-sensor-cells":
 54    const: 1
 55
 56required:
 57  - compatible
 58  - reg
 59  - clocks
 60  - power-domains
 61  - resets
 62
 63if:
 64  properties:
 65    compatible:
 66      contains:
 67        enum:
 68          - renesas,r8a779a0-thermal
 69then:
 70  properties:
 71    reg:
 72      items:
 73        - description: TSC0 registers
 74        - description: TSC1 registers
 75        - description: TSC2 registers
 76        - description: TSC3 registers
 77        - description: TSC4 registers
 78else:
 79  properties:
 80    reg:
 81      minItems: 2
 82      items:
 83        - description: TSC1 registers
 84        - description: TSC2 registers
 85        - description: TSC3 registers
 86        - description: TSC4 registers
 87  if:
 88    not:
 89      properties:
 90        compatible:
 91          contains:
 92            enum:
 93              - renesas,r8a779f0-thermal
 94              - renesas,r8a779g0-thermal
 95              - renesas,r8a779h0-thermal
 96  then:
 97    required:
 98      - interrupts
 99
100unevaluatedProperties: false
101
102examples:
103  - |
104    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
105    #include <dt-bindings/interrupt-controller/arm-gic.h>
106    #include <dt-bindings/power/r8a7795-sysc.h>
107
108    tsc: thermal@e6198000 {
109        compatible = "renesas,r8a7795-thermal";
110        reg = <0xe6198000 0x100>,
111              <0xe61a0000 0x100>,
112              <0xe61a8000 0x100>;
113        interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
114                     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
115                     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
116        clocks = <&cpg CPG_MOD 522>;
117        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
118        resets = <&cpg 522>;
119        #thermal-sensor-cells = <1>;
120    };
121
122    thermal-zones {
123        sensor_thermal: sensor-thermal {
124            polling-delay-passive = <250>;
125            polling-delay = <1000>;
126            thermal-sensors = <&tsc 0>;
127
128            trips {
129                sensor1_crit: sensor1-crit {
130                    temperature = <90000>;
131                    hysteresis = <2000>;
132                    type = "critical";
133                };
134            };
135        };
136    };
137  - |
138    #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
139    #include <dt-bindings/interrupt-controller/arm-gic.h>
140    #include <dt-bindings/power/r8a779a0-sysc.h>
141
142    tsc_r8a779a0: thermal@e6190000 {
143        compatible = "renesas,r8a779a0-thermal";
144        reg = <0xe6190000 0x200>,
145              <0xe6198000 0x200>,
146              <0xe61a0000 0x200>,
147              <0xe61a8000 0x200>,
148              <0xe61b0000 0x200>;
149        clocks = <&cpg CPG_MOD 919>;
150        power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
151        resets = <&cpg 919>;
152        #thermal-sensor-cells = <1>;
153    };