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