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kernel_xiaomi_sm8450-device…/bindings/thermal/qti-cpu-hotplug-cdev.txt
Ram Chandrasekar 7217825df7 dt-bindings: Add CPU hotplug cooling device
Add CPU hotplug cooling device, which will hotplug a CPU to achieve
thermal cooling.

Change-Id: I7bbc46f16c35a4b6c31b14067b5ba9a2279296ab
2021-01-07 13:00:36 -08:00

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QTI CPU hotplug cooling devices.
The CPU hotplug cooling device will be used for hotpluging a CPU on a thermal
condition. This cooling device driver can register one cooling device per CPU,
which can be used by thermal zone to mitigate.
Each child node will represent a cooling device and the child node should
point to the CPU, which will be mitigated by that cooling device instance.
Properties:
- compatible:
Usage: required
Value type: <string>
Definition: should be "qcom,cpu-hotplug"
Cooling device node:
- qcom,cpu:
Usage: required
Value type: <phandle>
Definition: phandle to the CPU device that this cooling device will
mitigate.
-#cooling-cells:
Usage: required
Value type: <integer>
Definition: Must be 2. Needed for of_thermal as cooling device
identifier. Please refer to
<devicetree/bindings/thermal/thermal.txt> for more
details.
Example:
qcom,cpu-hotplug {
compatible = "qcom,cpu-hotplug";
cpu0_hotplug: cpu0-hotplug {
qcom,cpu = <&CPU0>;
#cooling-cells = <2>;
};
cpu1_hotplug: cpu1-hotplug {
qcom,cpu = <&CPU1>;
#cooling-cells = <2>;
};
cpu2_hotplug: cpu2-hotplug {
qcom,cpu = <&CPU2>;
#cooling-cells = <2>;
};
cpu3_hotplug: cpu3-hotplug {
qcom,cpu = <&CPU3>;
#cooling-cells = <2>;
};
};