bindings/thermal/rcar-gen3-thermal.yaml

0001 # SPDX-License-Identifier: GPL-2.0-only
0002 # Copyright (C) 2020 Renesas Electronics Corp.
0003 %YAML 1.2
0004 ---
0005 $id: http://devicetree.org/schemas/thermal/rcar-gen3-thermal.yaml#
0006 $schema: http://devicetree.org/meta-schemas/core.yaml#
0007
0008 title: Renesas R-Car Gen3 Thermal Sensor
0009
0010 description:
0011   On most R-Car Gen3 and later SoCs, the thermal sensor controllers (TSC)
0012   control the thermal sensors (THS) which are the analog circuits for
0013   measuring temperature (Tj) inside the LSI.
0014
0015 maintainers:
0016   - Niklas Söderlund <niklas.soderlund@ragnatech.se>
0017
0018 properties:
0019   compatible:
0020     enum:
0021       - renesas,r8a774a1-thermal # RZ/G2M
0022       - renesas,r8a774b1-thermal # RZ/G2N
0023       - renesas,r8a774e1-thermal # RZ/G2H
0024       - renesas,r8a7795-thermal  # R-Car H3
0025       - renesas,r8a7796-thermal  # R-Car M3-W
0026       - renesas,r8a77961-thermal # R-Car M3-W+
0027       - renesas,r8a77965-thermal # R-Car M3-N
0028       - renesas,r8a77980-thermal # R-Car V3H
0029       - renesas,r8a779a0-thermal # R-Car V3U
0030       - renesas,r8a779f0-thermal # R-Car S4-8
0031
0032   reg: true
0033
0034   interrupts:
0035     items:
0036       - description: TEMP1 interrupt
0037       - description: TEMP2 interrupt
0038       - description: TEMP3 interrupt
0039
0040   clocks:
0041     maxItems: 1
0042
0043   power-domains:
0044     maxItems: 1
0045
0046   resets:
0047     maxItems: 1
0048
0049   "#thermal-sensor-cells":
0050     const: 1
0051
0052 required:
0053   - compatible
0054   - reg
0055   - clocks
0056   - power-domains
0057   - resets
0058   - "#thermal-sensor-cells"
0059
0060 if:
0061   properties:
0062     compatible:
0063       contains:
0064         enum:
0065           - renesas,r8a779a0-thermal
0066 then:
0067   properties:
0068     reg:
0069       items:
0070         - description: TSC0 registers
0071         - description: TSC1 registers
0072         - description: TSC2 registers
0073         - description: TSC3 registers
0074         - description: TSC4 registers
0075 else:
0076   properties:
0077     reg:
0078       minItems: 2
0079       items:
0080         - description: TSC1 registers
0081         - description: TSC2 registers
0082         - description: TSC3 registers
0083   if:
0084     not:
0085       properties:
0086         compatible:
0087           contains:
0088             enum:
0089               - renesas,r8a779f0-thermal
0090   then:
0091     required:
0092       - interrupts
0093
0094 additionalProperties: false
0095
0096 examples:
0097   - |
0098     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
0099     #include <dt-bindings/interrupt-controller/arm-gic.h>
0100     #include <dt-bindings/power/r8a7795-sysc.h>
0101
0102     tsc: thermal@e6198000 {
0103             compatible = "renesas,r8a7795-thermal";
0104             reg = <0xe6198000 0x100>,
0105                   <0xe61a0000 0x100>,
0106                   <0xe61a8000 0x100>;
0107             interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
0108                          <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
0109                          <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
0110             clocks = <&cpg CPG_MOD 522>;
0111             power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
0112             resets = <&cpg 522>;
0113             #thermal-sensor-cells = <1>;
0114     };
0115
0116     thermal-zones {
0117             sensor_thermal: sensor-thermal {
0118                     polling-delay-passive = <250>;
0119                     polling-delay = <1000>;
0120                     thermal-sensors = <&tsc 0>;
0121
0122                     trips {
0123                             sensor1_crit: sensor1-crit {
0124                                     temperature = <90000>;
0125                                     hysteresis = <2000>;
0126                                     type = "critical";
0127                             };
0128                     };
0129             };
0130     };
0131   - |
0132     #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>
0133     #include <dt-bindings/interrupt-controller/arm-gic.h>
0134     #include <dt-bindings/power/r8a779a0-sysc.h>
0135
0136     tsc_r8a779a0: thermal@e6190000 {
0137             compatible = "renesas,r8a779a0-thermal";
0138             reg = <0xe6190000 0x200>,
0139                   <0xe6198000 0x200>,
0140                   <0xe61a0000 0x200>,
0141                   <0xe61a8000 0x200>,
0142                   <0xe61b0000 0x200>;
0143             clocks = <&cpg CPG_MOD 919>;
0144             power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
0145             resets = <&cpg 919>;
0146             #thermal-sensor-cells = <1>;
0147     };