146 lines
3.2 KiB
YAML
146 lines
3.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/hwmon/nuvoton,nct7802.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Nuvoton NCT7802Y Hardware Monitoring IC
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maintainers:
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- Guenter Roeck <linux@roeck-us.net>
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description: |
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The NCT7802Y is a hardware monitor IC which supports one on-die and up to
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5 remote temperature sensors with SMBus interface.
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Datasheets:
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https://www.nuvoton.com/export/resource-files/Nuvoton_NCT7802Y_Datasheet_V12.pdf
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additionalProperties: false
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properties:
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compatible:
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enum:
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- nuvoton,nct7802
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reg:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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patternProperties:
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"^channel@[0-3]$":
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type: object
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additionalProperties: false
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properties:
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reg:
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items:
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- enum:
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- 0 # Local Temperature Sensor ("LTD")
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- 1 # Remote Temperature Sensor or Voltage Sensor 1 ("RTD1")
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- 2 # Remote Temperature Sensor or Voltage Sensor 2 ("RTD2")
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- 3 # Remote Temperature Sensor or Voltage Sensor 3 ("RTD3")
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sensor-type:
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items:
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- enum:
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- temperature
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- voltage
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temperature-mode:
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items:
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- enum:
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- thermistor
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- thermal-diode
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required:
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- reg
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allOf:
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# For channels RTD1, RTD2 and RTD3, require sensor-type to be set.
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# Otherwise (for all other channels), do not allow temperature-mode to be
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# set.
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- if:
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properties:
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reg:
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items:
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- enum:
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- 1
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- 2
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- 3
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then:
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required:
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- sensor-type
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else:
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not:
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required:
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- sensor-type
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# For channels RTD1 and RTD2 and if sensor-type is "temperature", require
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# temperature-mode to be set. Otherwise (for all other channels or
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# sensor-type settings), do not allow temperature-mode to be set
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- if:
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properties:
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reg:
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items:
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- enum:
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- 1
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- 2
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sensor-type:
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items:
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- enum:
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- temperature
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then:
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required:
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- temperature-mode
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else:
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not:
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required:
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- temperature-mode
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required:
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- compatible
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- reg
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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nct7802@28 {
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compatible = "nuvoton,nct7802";
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reg = <0x28>;
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#address-cells = <1>;
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#size-cells = <0>;
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channel@0 { /* LTD */
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reg = <0>;
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};
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channel@1 { /* RTD1 */
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reg = <1>;
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sensor-type = "voltage";
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};
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channel@2 { /* RTD2 */
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reg = <2>;
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sensor-type = "temperature";
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temperature-mode = "thermal-diode";
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};
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channel@3 { /* RTD3 */
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reg = <3>;
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sensor-type = "temperature";
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};
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};
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};
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