Re: [PATCH v2 1/3] dt-bindings: hwmon: Add maxim max31790 bindings

From: Krzysztof Kozlowski
Date: Sun Apr 14 2024 - 02:03:51 EST


On 14/04/2024 06:22, Chanh Nguyen wrote:
> Add a device tree bindings for max31790 device.
>

Nothing improved in commit msg, where is the rationale of split of bindings?

A nit, subject: drop second/last, redundant "bindings". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18

> Signed-off-by: Chanh Nguyen <chanh@xxxxxxxxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Update filename of the maxim,max31790.yaml [Krzysztof]
> - Add the common fan schema to $ref [Krzysztof]
> - Update the node name to "fan-controller" in maxim,max31790.yaml [Krzysztof]
> - Drop "driver" in commit title [Krzysztof]
> ---
> .../bindings/hwmon/maxim,max31790.yaml | 52 +++++++++++++++++++
> 1 file changed, 52 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
>
> diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
> new file mode 100644
> index 000000000000..a561e5a3e9e4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/maxim,max31790.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: The Maxim MAX31790 Fan Controller
> +
> +maintainers:
> + - Guenter Roeck <linux@xxxxxxxxxxxx>
> +
> +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
> +
> + clocks:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +allOf:
> + - $ref: fan-common.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + fan-controller@20 {
> + compatible = "maxim,max31790";
> + reg = <0x20>;

Make the example complete - add all properties, like clocks, resets and
any others which are applicable.

Best regards,
Krzysztof