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dt-bindings: hwmon: max6650: convert to dtschema

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Convert existing bindings to dtschema to support validation.

This is a straightforward conversion with no new properties.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240321-hwmon_yaml-v2-2-74fa8eb60ec9@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Javier Carrasco 2024-03-21 17:33:18 +01:00 committed by Guenter Roeck
parent 57649b6abf
commit 1bad1943d9
2 changed files with 70 additions and 28 deletions
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28
Documentation/devicetree/bindings/hwmon/max6650.txt
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Bindings for MAX6651 and MAX6650 I2C fan controllers
Reference:
[1] https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf
Required properties:
- compatible : One of "maxim,max6650" or "maxim,max6651"
- reg : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48.
Optional properties, default is to retain the chip's current setting:
- maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or
12000000 uV.
- maxim,fan-prescale : Pre-scaling value, as per datasheet [1]. Lower values
allow more fine-grained control of slower fans.
Valid: 1, 2, 4, 8, 16.
- maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the
driver selects closed-loop mode and the requested speed.
This ensures the fan is already running before userspace
takes over.
Example:
fan-max6650: max6650@1b {
reg = <0x1b>;
compatible = "maxim,max6650";
maxim,fan-microvolt = <12000000>;
maxim,fan-prescale = <4>;
maxim,fan-target-rpm = <1200>;
};

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Documentation/devicetree/bindings/hwmon/maxim,max6650.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/hwmon/maxim,max6650.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX6650 and MAX6651 I2C Fan Controllers
maintainers:
- Javier Carrasco <javier.carrasco.cruz@gmail.com>
description: |
The MAX6650 and MAX6651 regulate and monitor the speed
of 5VDC/12VDC burshless fans with built-in tachometers.
Datasheets:
https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf
properties:
compatible:
enum:
- maxim,max6650
- maxim,max6651
reg:
maxItems: 1
maxim,fan-microvolt:
description:
The supply voltage of the fan, either 5000000 uV or
12000000 uV.
enum: [5000000, 12000000]
maxim,fan-prescale:
description:
Pre-scaling value, as per datasheet. Lower values
allow more fine-grained control of slower fans.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8, 16]
maxim,fan-target-rpm:
description:
Initial requested fan rotation speed. If specified, the
driver selects closed-loop mode and the requested speed.
This ensures the fan is already running before userspace
takes over.
$ref: /schemas/types.yaml#/definitions/uint32
maximum: 30000
required:
- compatible
- reg
additionalProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
fan-controller@1b {
compatible = "maxim,max6650";
reg = <0x1b>;
maxim,fan-microvolt = <12000000>;
maxim,fan-prescale = <4>;
maxim,fan-target-rpm = <1200>;
};
};