1* Mediatek Thermal 2 3This describes the device tree binding for the Mediatek thermal controller 4which measures the on-SoC temperatures. This device does not have its own ADC, 5instead it directly controls the AUXADC via AHB bus accesses. For this reason 6this device needs phandles to the AUXADC. Also it controls a mux in the 7apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS 8is also needed. 9 10Required properties: 11- compatible: 12 - "mediatek,mt8173-thermal" : For MT8173 family of SoCs 13 - "mediatek,mt2701-thermal" : For MT2701 family of SoCs 14 - "mediatek,mt2712-thermal" : For MT2712 family of SoCs 15 - "mediatek,mt7622-thermal" : For MT7622 SoC 16 - "mediatek,mt8183-thermal" : For MT8183 family of SoCs 17- reg: Address range of the thermal controller 18- interrupts: IRQ for the thermal controller 19- clocks, clock-names: Clocks needed for the thermal controller. required 20 clocks are: 21 "therm": Main clock needed for register access 22 "auxadc": The AUXADC clock 23- resets: Reference to the reset controller controlling the thermal controller. 24- mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses 25- mediatek,apmixedsys: A phandle to the APMIXEDSYS controller. 26- #thermal-sensor-cells : Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description. 27 28Optional properties: 29- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If 30 unspecified default values shall be used. 31- nvmem-cell-names: Should be "calibration-data" 32 33Example: 34 35 thermal: thermal@1100b000 { 36 #thermal-sensor-cells = <1>; 37 compatible = "mediatek,mt8173-thermal"; 38 reg = <0 0x1100b000 0 0x1000>; 39 interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; 40 clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; 41 clock-names = "therm", "auxadc"; 42 resets = <&pericfg MT8173_PERI_THERM_SW_RST>; 43 reset-names = "therm"; 44 mediatek,auxadc = <&auxadc>; 45 mediatek,apmixedsys = <&apmixedsys>; 46 nvmem-cells = <&thermal_calibration_data>; 47 nvmem-cell-names = "calibration-data"; 48 }; 49