xref: /freebsd/sys/contrib/device-tree/Bindings/thermal/amazon,al-thermal.txt (revision acb1f1269c6f4ff89a0d28ba742f6687e9ef779d)
1Amazon's Annapurna Labs Thermal Sensor
2
3Simple thermal device that allows temperature reading by a single MMIO
4transaction.
5
6Required properties:
7- compatible: "amazon,al-thermal".
8- reg: The physical base address and length of the sensor's registers.
9- #thermal-sensor-cells: Must be 1. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
10
11Example:
12	thermal: thermal {
13		compatible = "amazon,al-thermal";
14		reg = <0x0 0x05002860 0x0 0x1>;
15		#thermal-sensor-cells = <0x1>;
16	};
17
18	thermal-zones {
19		thermal-z0 {
20			polling-delay-passive = <250>;
21			polling-delay = <1000>;
22			thermal-sensors = <&thermal 0>;
23			trips {
24				critical {
25					temperature = <105000>;
26					hysteresis = <2000>;
27					type = "critical";
28				};
29			};
30
31		};
32	};
33
34