Re: [PATCH 4/4] dt-bindings: hwmon: Add Amphenol ChipCap 2

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On 08/11/2023 13:29, Javier Carrasco wrote:
> Add device tree bindings and an example for the ChipCap 2 humidity
> and temperature sensor.
> 
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
> ---

...

> +maintainers:
> +  - Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
> +
> +description: |
> +  Relative humidity and temperature sensor on I2C bus.
> +
> +  Datasheets:
> +    https://www.amphenol-sensors.com/en/telaire/humidity/527-humidity-sensors/3095-chipcap-2
> +
> +properties:
> +  compatible:
> +    enum:
> +      - amphenol,cc2dxx
> +      - amphenol,cc2dxxs

What does xx stand for? Wildcard? I do not see cc2dxx in part numbers.
We expect specific compatibles, not generic. What are the differences
between all parts?

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 3
> +    description: |
> +      The device provides three optional interrupts. READY indicates that
> +      a measurement was finished. LOW indicates a low humidity alarm and
> +      HIGH a high humidity alarm.
> +      All interrupts must be IRQ_TYPE_RISING_EDGE.

Instead use items: with description: for each item.

> +
> +  interrupt-names:
> +    items:
> +      - const: READY
> +      - const: LOW
> +      - const: HIGH

Lowercase names

> +
> +  vdd-supply:
> +    description:
> +      Dedicated, controllable supply-regulator to reset the device and
> +      enter in command mode. If defined, it must provide a GPIO for its
> +      control.

I don't understand what GPIO has anything to do with power supply.

> +      If not defined, no alarms will be available.
> +
> +

Only one blank line.

> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false

Best regards,
Krzysztof





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