* Temperature Sensor ADC (TSADC) on rockchip SoCs Required properties: - compatible : should be "rockchip,-tsadc" "rockchip,rv1108-tsadc": found on RV1108 SoCs "rockchip,rk3228-tsadc": found on RK3228 SoCs "rockchip,rk3288-tsadc": found on RK3288 SoCs "rockchip,rk3328-tsadc": found on RK3328 SoCs "rockchip,rk3368-tsadc": found on RK3368 SoCs "rockchip,rk3399-tsadc": found on RK3399 SoCs - reg : physical base address of the controller and length of memory mapped region. - interrupts : The interrupt number to the cpu. The interrupt specifier format depends on the interrupt controller. - clocks : Must contain an entry for each entry in clock-names. - clock-names : Shall be "tsadc" for the converter-clock, and "apb_pclk" for the peripheral clock. - resets : Must contain an entry for each entry in reset-names. See ../reset/reset.txt for details. - reset-names : Must include the name "tsadc-apb". - pinctrl-names : The pin control state names; - pinctrl-0 : The "init" pinctrl state, it will be set before device probe. - pinctrl-1 : The "default" pinctrl state, it will be set after reset the TSADC controller. - pinctrl-2 : The "sleep" pinctrl state, it will be in for suspend. - #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description. Optional properties: - rockchip,hw-tshut-temp : The hardware-controlled shutdown temperature value. - rockchip,hw-tshut-mode : The hardware-controlled shutdown mode 0:CRU 1:GPIO. - rockchip,hw-tshut-polarity : The hardware-controlled active polarity 0:LOW 1:HIGH. - rockchip,grf : The phandle of the syscon node for the general register file. Exiample: tsadc: tsadc@ff280000 { compatible = "rockchip,rk3288-tsadc"; reg = <0xff280000 0x100>; interrupts = ; clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>; clock-names = "tsadc", "apb_pclk"; resets = <&cru SRST_TSADC>; reset-names = "tsadc-apb"; pinctrl-names = "init", "default", "sleep"; pinctrl-0 = <&otp_gpio>; pinctrl-1 = <&otp_out>; pinctrl-2 = <&otp_gpio>; #thermal-sensor-cells = <1>; rockchip,hw-tshut-temp = <95000>; rockchip,hw-tshut-mode = <0>; rockchip,hw-tshut-polarity = <0>; }; Example: referring to thermal sensors: thermal-zones { cpu_thermal: cpu_thermal { polling-delay-passive = <1000>; /* milliseconds */ polling-delay = <5000>; /* milliseconds */ /* sensor ID */ thermal-sensors = <&tsadc 1>; trips { cpu_alert0: cpu_alert { temperature = <70000>; /* millicelsius */ hysteresis = <2000>; /* millicelsius */ type = "passive"; }; cpu_crit: cpu_crit { temperature = <90000>; /* millicelsius */ hysteresis = <2000>; /* millicelsius */ type = "critical"; }; }; cooling-maps { map0 { trip = <&cpu_alert0>; cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; }; };