Re: [PATCH 3/6] ASoC: dt-bindings: Add bindings for NeoFidelity NTP8918

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On 09/07/2024 19:28, Igor Prusov wrote:
> Add dt-bindings for NeoFidelity NTP8918 Amplifier
> 
> Signed-off-by: Igor Prusov <ivprusov@xxxxxxxxxxxxxxxxx>
> ---
>  .../bindings/sound/neofidelity,ntp8918.yaml   | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/neofidelity,ntp8918.yaml
> 

This looks like not tested, so limited review follows.

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


> +> +description: |

Do not need '|' unless you need to preserve formatting.

> +  The NTP8918 is a single chip full digital audio amplifier
> +  including power stage for stereo amplifier system.
> +  The NTP8918 is integrated with versatile digital audio signal
> +  processing functions, high-performance, high-fidelity fully
> +  digital PWM modulator and two high-power full-bridge MOSFET
> +  power stages.
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - neofidelity,ntp8918
> +
> +  reg:
> +    maxItems: 1
> +    enum:
> +      - 0x2a
> +      - 0x2b
> +      - 0x2c
> +      - 0x2d
> +    description: |
> +      I2C address of the device.

Drop description, redundant.

> +
> +  reset-gpios:
> +    maxItems: 1
> +    description: GPIO used to control the state of the device.

Drop description, redundant.

> +
> +  '#sound-dai-cells':
> +    enum: [0]

That's a const

> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +   #include <dt-bindings/gpio/gpio.h>
> +   i2c {
> +     #address-cells = <1>;
> +     #size-cells = <0>;
> +     ntp8918@54 {

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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