FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/thermal/mediatek-thermal.txt

     * Mediatek Thermal
     
     This describes the device tree binding for the Mediatek thermal controller
     which measures the on-SoC temperatures. This device does not have its own ADC,
     instead it directly controls the AUXADC via AHB bus accesses. For this reason
     this device needs phandles to the AUXADC. Also it controls a mux in the
     apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS
     is also needed.
     
    Required properties:
    - compatible:
      - "mediatek,mt8173-thermal" : For MT8173 family of SoCs
      - "mediatek,mt2701-thermal" : For MT2701 family of SoCs
      - "mediatek,mt2712-thermal" : For MT2712 family of SoCs
      - "mediatek,mt7622-thermal" : For MT7622 SoC
      - "mediatek,mt8183-thermal" : For MT8183 family of SoCs
      - "mediatek,mt8516-thermal", "mediatek,mt2701-thermal : For MT8516 family of SoCs
    - reg: Address range of the thermal controller
    - interrupts: IRQ for the thermal controller
    - clocks, clock-names: Clocks needed for the thermal controller. required
                           clocks are:
                           "therm":  Main clock needed for register access
                           "auxadc": The AUXADC clock
    - mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses
    - mediatek,apmixedsys: A phandle to the APMIXEDSYS controller.
    - #thermal-sensor-cells : Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
    
    Optional properties:
    - resets: Reference to the reset controller controlling the thermal controller.
    - nvmem-cells: A phandle to the calibration data provided by a nvmem device. If
                   unspecified default values shall be used.
    - nvmem-cell-names: Should be "calibration-data"
    
    Example:
    
            thermal: thermal@1100b000 {
                    #thermal-sensor-cells = <1>;
                    compatible = "mediatek,mt8173-thermal";
                    reg = <0 0x1100b000 0 0x1000>;
                    interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>;
                    clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>;
                    clock-names = "therm", "auxadc";
                    resets = <&pericfg MT8173_PERI_THERM_SW_RST>;
                    reset-names = "therm";
                    mediatek,auxadc = <&auxadc>;
                    mediatek,apmixedsys = <&apmixedsys>;
                    nvmem-cells = <&thermal_calibration_data>;
                    nvmem-cell-names = "calibration-data";
            };

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