linux-kernel - Re: [PATCH 9/9] ASoC: dt-bindings: meson: convert axg sound card control to schema

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Date:   Fri, 3 Feb 2023 21:21:30 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org
Cc:     linux-amlogic@...ts.infradead.org,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 9/9] ASoC: dt-bindings: meson: convert axg sound card
 control to schema

On 03/02/2023 20:34, Jerome Brunet wrote:
> 
> On Fri 03 Feb 2023 at 18:59, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:
> 
>> On 03/02/2023 15:13, Jerome Brunet wrote:
>>>>> +          Multiplication factor between the frame rate and master clock
>>>>> +          rate
>>>>> +
>>>>> +      sound-dai:
>>>>> +        $ref: /schemas/types.yaml#/definitions/phandle-array
>>>>
>>>> Old binding was saying it is just phandle
>>>
>>> It is just a phandle but the bindings used to have problem with phandle
>>> that had cells.
>>>
>>> See:
>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml?h=v6.2-rc6&id=d031d99b02eaf7363c33f5b27b38086cc8104082
>>>
>>> Was it wrong or did the situation change since then ?
>>
>> Then define it as having cells:
>>
>> https://elixir.bootlin.com/linux/v5.18-rc1/source/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml#L42
>>
> 
> The card is provided with the phandle.
> Whether or not the phandle has cells or not has nothing do with card
> driver. The card just consums sound-dai. I don't understand this comment.

You said this is only a phandle. Then you have just two options - either
this is one phandle without arguments (then change it as I asked
originally) or this is one phandle with arguments (then change it to
define the arguments like in example I gave you).

Best regards,
Krzysztof