1 Amazon's Annapurna Labs Thermal Sensor 1 Amazon's Annapurna Labs Thermal Sensor
2 2
3 Simple thermal device that allows temperature 3 Simple thermal device that allows temperature reading by a single MMIO
4 transaction. 4 transaction.
5 5
6 Required properties: 6 Required properties:
7 - compatible: "amazon,al-thermal". 7 - compatible: "amazon,al-thermal".
8 - reg: The physical base address and length of 8 - reg: The physical base address and length of the sensor's registers.
9 - #thermal-sensor-cells: Must be 1. See Docume 9 - #thermal-sensor-cells: Must be 1. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
10 10
11 Example: 11 Example:
12 thermal: thermal { 12 thermal: thermal {
13 compatible = "amazon,al-therma 13 compatible = "amazon,al-thermal";
14 reg = <0x0 0x05002860 0x0 0x1> 14 reg = <0x0 0x05002860 0x0 0x1>;
15 #thermal-sensor-cells = <0x1>; 15 #thermal-sensor-cells = <0x1>;
16 }; 16 };
17 17
18 thermal-zones { 18 thermal-zones {
19 thermal-z0 { 19 thermal-z0 {
20 polling-delay-passive 20 polling-delay-passive = <250>;
21 polling-delay = <1000> 21 polling-delay = <1000>;
22 thermal-sensors = <&th 22 thermal-sensors = <&thermal 0>;
23 trips { 23 trips {
24 critical { 24 critical {
25 temper 25 temperature = <105000>;
26 hyster 26 hysteresis = <2000>;
27 type = 27 type = "critical";
28 }; 28 };
29 }; 29 };
30 30
31 }; 31 };
32 }; 32 };
33 33
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