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145 lines
3.2 KiB
145 lines
3.2 KiB
# 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 <[email protected]> |
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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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