Commit 1bad1943 authored by Javier Carrasco's avatar Javier Carrasco Committed by Guenter Roeck
Browse files

dt-bindings: hwmon: max6650: convert to dtschema 



Convert existing bindings to dtschema to support validation.

This is a straightforward conversion with no new properties.

Signed-off-by: default avatarJavier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240321-hwmon_yaml-v2-2-74fa8eb60ec9@gmail.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 57649b6a

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>;

	};

Documentation/devicetree/bindings/hwmon/maxim,max6650.yaml

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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>;

        };

    };