rcar-gen3-thermal.yaml

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    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 
    8 title: Renesas R-Car Gen3 Thermal Sensor
    9 
   10 description:
   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 
   15 maintainers:
   16   - Niklas Söderlund <niklas.soderlund@ragnatech.se>
   17 
   18 properties:
   19   compatible:
   20     enum:
   21       - renesas,r8a774a1-thermal # RZ/G2M
   22       - renesas,r8a774b1-thermal # RZ/G2N
   23       - renesas,r8a774e1-thermal # RZ/G2H
   24       - renesas,r8a7795-thermal  # R-Car H3
   25       - renesas,r8a7796-thermal  # R-Car M3-W
   26       - renesas,r8a77961-thermal # R-Car M3-W+
   27       - renesas,r8a77965-thermal # R-Car M3-N
   28       - renesas,r8a77980-thermal # R-Car V3H
   29       - renesas,r8a779a0-thermal # R-Car V3U
   30       - renesas,r8a779f0-thermal # R-Car S4-8
   31 
   32   reg: true
   33 
   34   interrupts:
   35     items:
   36       - description: TEMP1 interrupt
   37       - description: TEMP2 interrupt
   38       - description: TEMP3 interrupt
   39 
   40   clocks:
   41     maxItems: 1
   42 
   43   power-domains:
   44     maxItems: 1
   45 
   46   resets:
   47     maxItems: 1
   48 
   49   "#thermal-sensor-cells":
   50     const: 1
   51 
   52 required:
   53   - compatible
   54   - reg
   55   - clocks
   56   - power-domains
   57   - resets
   58   - "#thermal-sensor-cells"
   59 
   60 if:
   61   properties:
   62     compatible:
   63       contains:
   64         enum:
   65           - renesas,r8a779a0-thermal
   66 then:
   67   properties:
   68     reg:
   69       items:
   70         - description: TSC0 registers
   71         - description: TSC1 registers
   72         - description: TSC2 registers
   73         - description: TSC3 registers
   74         - description: TSC4 registers
   75 else:
   76   properties:
   77     reg:
   78       minItems: 2
   79       items:
   80         - description: TSC1 registers
   81         - description: TSC2 registers
   82         - description: TSC3 registers
   83   if:
   84     not:
   85       properties:
   86         compatible:
   87           contains:
   88             enum:
   89               - renesas,r8a779f0-thermal
   90   then:
   91     required:
   92       - interrupts
   93 
   94 additionalProperties: false
   95 
   96 examples:
   97   - |
   98     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
   99     #include <dt-bindings/interrupt-controller/arm-gic.h>
  100     #include <dt-bindings/power/r8a7795-sysc.h>
  101 
  102     tsc: thermal@e6198000 {
  103             compatible = "renesas,r8a7795-thermal";
  104             reg = <0xe6198000 0x100>,
  105                   <0xe61a0000 0x100>,
  106                   <0xe61a8000 0x100>;
  107             interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
  108                          <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
  109                          <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
  110             clocks = <&cpg CPG_MOD 522>;
  111             power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
  112             resets = <&cpg 522>;
  113             #thermal-sensor-cells = <1>;
  114     };
  115 
  116     thermal-zones {
  117             sensor_thermal: sensor-thermal {
  118                     polling-delay-passive = <250>;
  119                     polling-delay = <1000>;
  120                     thermal-sensors = <&tsc 0>;
  121 
  122                     trips {
  123                             sensor1_crit: sensor1-crit {
  124                                     temperature = <90000>;
  125                                     hysteresis = <2000>;
  126                                     type = "critical";
  127                             };
  128                     };
  129             };
  130     };
  131   - |
  132     #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
  133     #include <dt-bindings/interrupt-controller/arm-gic.h>
  134     #include <dt-bindings/power/r8a779a0-sysc.h>
  135 
  136     tsc_r8a779a0: thermal@e6190000 {
  137             compatible = "renesas,r8a779a0-thermal";
  138             reg = <0xe6190000 0x200>,
  139                   <0xe6198000 0x200>,
  140                   <0xe61a0000 0x200>,
  141                   <0xe61a8000 0x200>,
  142                   <0xe61b0000 0x200>;
  143             clocks = <&cpg CPG_MOD 919>;
  144             power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
  145             resets = <&cpg 919>;
  146             #thermal-sensor-cells = <1>;
  147     };

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