| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/hwmon/ti,amc6821.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: AMC6821 Intelligent Temperature Monitor and PWM Fan Controller |
| |
| maintainers: |
| - Farouk Bouabid <farouk.bouabid@cherry.de> |
| - Quentin Schulz <quentin.schulz@cherry.de> |
| |
| description: |
| Intelligent temperature monitor and pulse-width modulation (PWM) fan |
| controller. |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - const: tsd,mule |
| - const: ti,amc6821 |
| - const: ti,amc6821 |
| |
| reg: |
| maxItems: 1 |
| |
| i2c-mux: |
| type: object |
| |
| fan: |
| $ref: fan-common.yaml# |
| unevaluatedProperties: false |
| |
| properties: |
| cooling-levels: |
| description: PWM duty cycle values corresponding to thermal cooling states. |
| items: |
| maximum: 255 |
| |
| "#pwm-cells": |
| const: 2 |
| description: | |
| Number of cells in a PWM specifier. |
| - cell 0: PWM period in nanoseconds |
| - cell 1: PWM polarity: 0 or PWM_POLARITY_INVERTED |
| |
| required: |
| - compatible |
| - reg |
| |
| if: |
| properties: |
| compatible: |
| contains: |
| const: tsd,mule |
| |
| then: |
| required: |
| - i2c-mux |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| fan_controller: fan@18 { |
| compatible = "ti,amc6821"; |
| reg = <0x18>; |
| #pwm-cells = <2>; |
| |
| fan { |
| pwms = <&fan_controller 40000 0>; |
| }; |
| }; |
| }; |
| |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| fan@18 { |
| compatible = "tsd,mule", "ti,amc6821"; |
| reg = <0x18>; |
| |
| i2c-mux { |
| compatible = "tsd,mule-i2c-mux"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| i2c@0 { |
| reg = <0x0>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| rtc@6f { |
| compatible = "isil,isl1208"; |
| reg = <0x6f>; |
| }; |
| }; |
| }; |
| }; |
| }; |
| ... |
