xref: /freebsd/sys/contrib/device-tree/Bindings/hwmon/ntc_thermistor.txt (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1NTC Thermistor hwmon sensors
2-------------------------------
3
4Requires node properties:
5- "compatible" value : one of
6	"epcos,b57330v2103"
7	"epcos,b57891s0103"
8	"murata,ncp15wb473"
9	"murata,ncp18wb473"
10	"murata,ncp21wb473"
11	"murata,ncp03wb473"
12	"murata,ncp15wl333"
13	"murata,ncp03wf104"
14	"murata,ncp15xh103"
15
16/* Usage of vendor name "ntc" is deprecated */
17<DEPRECATED>	"ntc,ncp15wb473"
18<DEPRECATED>	"ntc,ncp18wb473"
19<DEPRECATED>	"ntc,ncp21wb473"
20<DEPRECATED>	"ntc,ncp03wb473"
21<DEPRECATED>	"ntc,ncp15wl333"
22
23- "pullup-uv"	Pull up voltage in micro volts
24- "pullup-ohm"	Pull up resistor value in ohms
25- "pulldown-ohm" Pull down resistor value in ohms
26- "connected-positive" Always ON, If not specified.
27		Status change is possible.
28- "io-channels"	Channel node of ADC to be used for
29		conversion.
30
31Optional node properties:
32- "#thermal-sensor-cells" Used to expose itself to thermal fw.
33
34Read more about iio bindings at
35	Documentation/devicetree/bindings/iio/iio-bindings.txt
36
37Example:
38	ncp15wb473@0 {
39		compatible = "murata,ncp15wb473";
40		pullup-uv = <1800000>;
41		pullup-ohm = <47000>;
42		pulldown-ohm = <0>;
43		io-channels = <&adc 3>;
44	};
45