Documentation: add Device tree bindings for hwmon/nct7802
Subsystems (2)
PATCH v6 1/1 Documentation: add Device tree bindings for hwmon/nct7802
Introduced subnodes sensor, fan and peci with properties.
Signed-off-by Constantine Shulyupin <[email protected]>
---
Changed in v6:
- Removed previous definition.
- Introduced subnodes sensor, fan and peci with properties.
Changed in v5:
- Fixed typos
Changed in v4:
- Removed registers initialization by names
- Added properties nuvoton,sensor*-type
Changed in v3:
- Fixed vendor prefix
- Added short registers description,
full registers description is available at
https://www.nuvoton.com/hq/products/cloud-computing/hardware-monitors/desktop-server-series/nct7802y/
Changed in v2:
- Removed nct7802,reg-init
- Added registers initialization by names
Introduced in v1:
- nct7802,reg-init
--- .../devicetree/bindings/hwmon/nct7802.txt | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/nct7802.txt
Documentation/devicetree/bindings/hwmon/nct7802.txt new file +66 -0
@@ -0,0 +1,66 @@ +Nuvoton NCT7802Y Hardware Monitoring IC + +Required node properties: + + - "compatible": must be "nuvoton,nct7802" + - "reg": I2C bus address of the device + - #address-cells=<1>; + - #size-cells=<0>; + +Optional subnodes: + +Subnode "sensor" properties: + - "reg": index in range 0..3 + - "compatible", allowed values: + - "nuvoton,nct7802-thermal-diode" + - "nuvoton,nct7802-thermistor" + - "nuvoton,nct7802-voltage" + +Sensor at address 2 can't be "nuvoton,nct7802-thermal-diode". + +Subnode "fan": +Required properties: + - "reg" :index of in range 0 .. 2. + - "compatible", allowed values: + "nuvoton,nct7802-fan-pwm" :PWM powered fan + "nuvoton,nct7802-fan-dc" :direct current powered fan +Optional boolean properties: + - "invert" :inverted polarity + - "open-drain" :open-drain output instead push pull + +Subnode "peci" properties: + - "reg" :index in range 0..1 + - "compatible", should be "nuvoton,nct7802-peci" + +Not defined sensors, fans and PECI modules will be disabled. + +Example nct7802 node: + +nct7802 { + compatible = "nuvoton,nct7802"; + reg = <0x2a>; + #address-cells=<1>; + #size-cells=<0>; + sensor@0 { + reg = <0>; + compatible = "nuvoton,nct7802-thermistor"; + }; + sensor@2 { + reg = <2>; + compatible = "nuvoton,nct7802-thermal-diode"; + }; + fan@0 { + reg = <0>; + compatible = "nuvoton,nct7802-fan-pwm"; + }; + fan@1 { + reg = <1>; + compatible = "nuvoton,nct7802-fan-dc"; + invert; + open-drain; + }; + peci@0 { + reg = <0>; + compatible = "nuvoton,nct7802-peci"; + }; +};
Signature · 1 line
1.9.1