Merge tag 'trace-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / hwmon / ntc_thermistor.txt
1 NTC Thermistor hwmon sensors
2 -------------------------------
3
4 Requires node properties:
5 - "compatible" value : one of
6         "epcos,b57330v2103"
7         "murata,ncp15wb473"
8         "murata,ncp18wb473"
9         "murata,ncp21wb473"
10         "murata,ncp03wb473"
11         "murata,ncp15wl333"
12
13 /* Usage of vendor name "ntc" is deprecated */
14 <DEPRECATED>    "ntc,ncp15wb473"
15 <DEPRECATED>    "ntc,ncp18wb473"
16 <DEPRECATED>    "ntc,ncp21wb473"
17 <DEPRECATED>    "ntc,ncp03wb473"
18 <DEPRECATED>    "ntc,ncp15wl333"
19
20 - "pullup-uv"   Pull up voltage in micro volts
21 - "pullup-ohm"  Pull up resistor value in ohms
22 - "pulldown-ohm" Pull down resistor value in ohms
23 - "connected-positive" Always ON, If not specified.
24                 Status change is possible.
25 - "io-channels" Channel node of ADC to be used for
26                 conversion.
27
28 Optional node properties:
29 - "#thermal-sensor-cells" Used to expose itself to thermal fw.
30
31 Read more about iio bindings at
32         Documentation/devicetree/bindings/iio/iio-bindings.txt
33
34 Example:
35         ncp15wb473@0 {
36                 compatible = "murata,ncp15wb473";
37                 pullup-uv = <1800000>;
38                 pullup-ohm = <47000>;
39                 pulldown-ohm = <0>;
40                 io-channels = <&adc 3>;
41         };