xref: /freebsd/sys/contrib/device-tree/Bindings/thermal/st-thermal.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotBinding for Thermal Sensor driver for STMicroelectronics STi series of SoCs.
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotRequired parameters:
4*c66ec88fSEmmanuel Vadot-------------------
5*c66ec88fSEmmanuel Vadot
6*c66ec88fSEmmanuel Vadotcompatible : 	Should be "st,stih407-thermal"
7*c66ec88fSEmmanuel Vadot
8*c66ec88fSEmmanuel Vadotclock-names : 	Should be "thermal".
9*c66ec88fSEmmanuel Vadot		  See: Documentation/devicetree/bindings/resource-names.txt
10*c66ec88fSEmmanuel Vadotclocks : 	Phandle of the clock used by the thermal sensor.
11*c66ec88fSEmmanuel Vadot		  See: Documentation/devicetree/bindings/clock/clock-bindings.txt
12*c66ec88fSEmmanuel Vadot
13*c66ec88fSEmmanuel VadotOptional parameters:
14*c66ec88fSEmmanuel Vadot-------------------
15*c66ec88fSEmmanuel Vadot
16*c66ec88fSEmmanuel Vadotreg : 		For non-sysconf based sensors, this should be the physical base
17*c66ec88fSEmmanuel Vadot		address and length of the sensor's registers.
18*c66ec88fSEmmanuel Vadotinterrupts :	Standard way to define interrupt number.
19*c66ec88fSEmmanuel Vadot		  NB: For thermal sensor's for which no interrupt has been
20*c66ec88fSEmmanuel Vadot		  defined, a polling delay of 1000ms will be used to read the
21*c66ec88fSEmmanuel Vadot		  temperature from device.
22*c66ec88fSEmmanuel Vadot
23*c66ec88fSEmmanuel VadotExample:
24*c66ec88fSEmmanuel Vadot
25*c66ec88fSEmmanuel Vadot	temp0@91a0000 {
26*c66ec88fSEmmanuel Vadot		compatible = "st,stih407-thermal";
27*c66ec88fSEmmanuel Vadot		reg = <0x91a0000 0x28>;
28*c66ec88fSEmmanuel Vadot		clock-names = "thermal";
29*c66ec88fSEmmanuel Vadot		clocks = <&CLK_SYSIN>;
30*c66ec88fSEmmanuel Vadot		interrupts = <GIC_SPI 205 IRQ_TYPE_EDGE_RISING>;
31*c66ec88fSEmmanuel Vadot		st,passive_cooling_temp = <110>;
32*c66ec88fSEmmanuel Vadot	};
33