linux-kernel - Re: [PATCH v3 1/2] ASoC: dt-bindings: Add bindings for Cadence I2S-MC controller

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Date: Wed, 8 May 2024 10:03:46 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Xingyu Wu <xingyu.wu@...rfivetech.com>,
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Claudiu Beznea <Claudiu.Beznea@...rochip.com>,
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor.dooley@...rochip.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 alsa-devel@...a-project.org, linux-sound@...r.kernel.org
Subject: Re: [PATCH v3 1/2] ASoC: dt-bindings: Add bindings for Cadence I2S-MC
 controller

On 08/05/2024 09:04, Xingyu Wu wrote:
> Add bindings for the Multi-Channel I2S controller of Cadence.
> 
> The Multi-Channel I2S (I2S-MC) implements a function of the
> 8-channel I2S bus interfasce. Each channel can become receiver
> or transmitter. Four I2S instances are used on the StarFive
> JH8100 SoC. One instance of them is limited to 2 channels, two
> instance are limited to 4 channels, and the other one can use
> most 8 channels. Add a unique property about
> 'starfive,i2s-max-channels' to distinguish each instance.
> 
> Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>


> +
> +  starfive,i2s-max-channels:
> +    description:
> +      Number of I2S max stereo channels supported on the StarFive
> +      JH8100 SoC.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [2, 4, 8]
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: starfive,jh8100-i2s
> +    then:
> +      required:
> +        - starfive,i2s-max-channels
> +    else:
> +      properties:
> +        starfive,i2s-max-channels: false
> +
> +required:

I asked to put it after properties: block, not after allOf:. See
example-schema for preferred order. Why? Because we are used to it and
it makes reading the schema easier for us.

Rest looks good, so with the re-order:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof