Documentation: add Device tree bindings for hwmon/nct7802
Subsystems (2)
PATCH v7 1/1 Documentation: add Device tree bindings for hwmon/nct7802
Introduced subnodes sensor, fan and peci with properties.
---
Changed in v7:
- sensors type (thermistor, thermistor, voltage) and pwm type selected with type property instead of compatible property.
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 | 77 ++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/nct7802.txt
Documentation/devicetree/bindings/hwmon/nct7802.txt new file +77 -0
@@ -0,0 +1,77 @@ +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: + +Sensor subnodes properties: + - "reg": index in range 0..2 + - "compatible", allowed values: + - "nuvoton,nct7802" + - "sensor-type", allowed values: + "thermal-diode" + "thermistor" + "voltage" + +Except sensor at address 2 can't be "thermal-diode". + +Fan subnode: + +Required properties: + - "reg" :index of in range 0 .. 2. + - "compatible", should be "nuvoton,nct7802-fan" +Optional boolean properties: + - "direct-current" :direct current powered fan instead default PWM + - "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" + +Subnode vcc properties: + - "compatible", should be "nuvoton,nct7802-vcc" + +Subnode vcore properties: + - "compatible", should be "nuvoton,nct7802-vcore" + +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"; + sensor-type = "thermistor" + }; + sensor@1 { + reg = <1>; + compatible = "nuvoton,nct7802"; + sensor-type = "thermal-diode"; + }; + pwm-fan@0 { + reg = <0>; + compatible = "nuvoton,nct7802-fan"; + }; + dc-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