Re: [PATCH 1/3] dt-bindings: hwmon: Add maxim max31790 driver bindings

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On 11/03/2024 12:13, Chanh Nguyen wrote:
> Add a device tree bindings for max31790 device.

Subject: drop "driver", bindings are about hardware.

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

> 
> Signed-off-by: Chanh Nguyen <chanh@xxxxxxxxxxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/hwmon/max31790.yaml   | 44 +++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/max31790.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/max31790.yaml b/Documentation/devicetree/bindings/hwmon/max31790.yaml
> new file mode 100644
> index 000000000000..5a93e6bdebda
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/max31790.yaml

Filename like compatible.

> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/max31790.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: The Maxim MAX31790 Fan Controller
> +
> +maintainers:
> +  - Jean Delvare <jdelvare@xxxxxxxx>
> +  - Guenter Roeck <linux@xxxxxxxxxxxx>

You should have here someone responsible for hardware, not subsystem
maintainers.

> +
> +description: >
> +  The MAX31790 controls the speeds of up to six fans using six
> +  independent PWM outputs. The desired fan speeds (or PWM duty cycles)
> +  are written through the I2C interface.
> +
> +  Datasheets:
> +    https://datasheets.maximintegrated.com/en/ds/MAX31790.pdf
> +
> +properties:
> +  compatible:
> +    const: maxim,max31790
> +
> +  reg:
> +    maxItems: 1

That's weirdly empty.

> +
> +required:
> +  - compatible
> +  - reg
> +

You miss allOf: with $ref to fan controller schema.

> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      max31790@20 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


Best regards,
Krzysztof





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