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arm64: tegra: p2972: Enable the CPU, GPU and AUX thermal zones

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Enable these thermal zones to be able to monitor their temperatures and
control the fan to cool down the system if necessary.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-11-23 13:18:39 +01:00
parent 686ba00900
commit cfe3af19d9
1 changed files with 90 additions and 1 deletions
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91
arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
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@ -44,8 +44,97 @@
};
};
fan {
fan: fan {
compatible = "pwm-fan";
pwms = <&pwm4 0 45334>;
cooling-levels = <0 64 128 255>;
cooling-min-state = <0>;
cooling-max-state = <3>;
#cooling-cells = <2>;
};
thermal-zones {
cpu {
polling-delay = <0>;
polling-delay-passive = <500>;
status = "okay";
trips {
cpu_trip_critical: critical {
temperature = <96500>;
hysteresis = <0>;
type = "critical";
};
cpu_trip_hot: hot {
temperature = <70000>;
hysteresis = <2000>;
type = "hot";
};
cpu_trip_active: active {
temperature = <50000>;
hysteresis = <2000>;
type = "active";
};
cpu_trip_passive: passive {
temperature = <30000>;
hysteresis = <2000>;
type = "passive";
};
};
cooling-maps {
cpu-critical {
cooling-device = <&fan 3 3>;
trip = <&cpu_trip_critical>;
};
cpu-hot {
cooling-device = <&fan 2 2>;
trip = <&cpu_trip_hot>;
};
cpu-active {
cooling-device = <&fan 1 1>;
trip = <&cpu_trip_active>;
};
cpu-passive {
cooling-device = <&fan 0 0>;
trip = <&cpu_trip_passive>;
};
};
};
gpu {
polling-delay = <0>;
polling-delay-passive = <500>;
status = "okay";
trips {
gpu_alert0: critical {
temperature = <99000>;
hysteresis = <0>;
type = "critical";
};
};
};
aux {
polling-delay = <0>;
polling-delay-passive = <500>;
status = "okay";
trips {
aux_alert0: critical {
temperature = <90000>;
hysteresis = <0>;
type = "critical";
};
};
};
};
};