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* ZTE zx2967 family Thermal
Required Properties:
- compatible: should be one of the following.
* zte,zx296718-thermal
- reg: physical base address of the controller and length of memory mapped
region.
- clocks : Pairs of phandle and specifier referencing the controller's clocks.
- clock-names: "topcrm" for the topcrm clock.
"apb" for the apb clock.
- #thermal-sensor-cells: must be 0.
Please note: slope coefficient defined in thermal-zones section need to be
multiplied by 1000.
Example for tempsensor:
tempsensor: tempsensor@148a000 {
compatible = "zte,zx296718-thermal";
reg = <0x0148a000 0x20>;
clocks = <&topcrm TEMPSENSOR_GATE>, <&audiocrm AUDIO_TS_PCLK>;
clock-names = "topcrm", "apb";
#thermal-sensor-cells = <0>;
};
Example for cooling device:
cooling_dev: cooling_dev {
cluster0_cooling_dev: cluster0-cooling-dev {
#cooling-cells = <2>;
cpumask = <0xf>;
capacitance = <1500>;
};
cluster1_cooling_dev: cluster1-cooling-dev {
#cooling-cells = <2>;
cpumask = <0x30>;
capacitance = <2000>;
};
};
Example for thermal zones:
thermal-zones {
zx296718_thermal: zx296718_thermal {
polling-delay-passive = <500>;
polling-delay = <1000>;
sustainable-power = <6500>;
thermal-sensors = <&tempsensor 0>;
/*
* slope need to be multiplied by 1000.
*/
coefficients = <1951 (-922)>;
trips {
trip0: switch_on_temperature {
temperature = <90000>;
hysteresis = <2000>;
type = "passive";
};
trip1: desired_temperature {
temperature = <100000>;
hysteresis = <2000>;
type = "passive";
};
crit: critical_temperature {
temperature = <110000>;
hysteresis = <2000>;
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&trip0>;
cooling-device = <&gpu 2 5>;
};
map1 {
trip = <&trip0>;
cooling-device = <&cluster0_cooling_dev 1 2>;
};
map2 {
trip = <&trip1>;
cooling-device = <&cluster0_cooling_dev 1 2>;
};
map3 {
trip = <&crit>;
cooling-device = <&cluster0_cooling_dev 1 2>;
};
map4 {
trip = <&trip0>;
cooling-device = <&cluster1_cooling_dev 1 2>;
contribution = <9000>;
};
map5 {
trip = <&trip1>;
cooling-device = <&cluster1_cooling_dev 1 2>;
contribution = <4096>;
};
map6 {
trip = <&crit>;
cooling-device = <&cluster1_cooling_dev 1 2>;
contribution = <4096>;
};
};
};
};
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