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Message-Id: <F12DE31C-E167-47F0-BAE0-C09538C5C3C8@cutebit.org>
Date:   Wed, 10 May 2023 09:33:47 +0200
From:   Martin Povišer <povik+lin@...ebit.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Andrew Davis <afd@...com>,
        Shi Fu <shifu0704@...ndersoft.com>,
        Shenghao Ding <shenghao-ding@...com>, kevin-lu@...com,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, asahi@...ts.linux.dev
Subject: Re: [PATCH] ASoC: dt-bindings: Adjust #sound-dai-cells on TI's
 single-DAI codecs


> On 10. 5. 2023, at 9:30, Martin Povišer <povik+lin@...ebit.org> wrote:
> 
>> On 10. 5. 2023, at 9:17, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:
>> 
>> On 09/05/2023 17:34, Martin Povišer wrote:
>>> A bunch of TI's codecs have binding schemas which force #sound-dai-cells
>>> to one despite those codecs only having a single DAI. Allow for bindings
>>> with zero DAI cells and deprecate the former non-zero value.
>>> 
>>> Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
>>> ---

>>>  '#sound-dai-cells':
>>> -    const: 1
>>> +    # The codec has a single DAI, the #sound-dai-cells=<1>; case is left in for backward
>>> +    # compatibility but is deprecated.
>>> +    enum: [0, 1]
>> 
>> Does it? I see playback and capture.
> 
> I think so. Playback and capture are not separate DAIs.
> 
> Martin

I double checked, I am pretty sure. There’s a single snd_soc_dai_driver,
which becomes a single DAI.

Martin

> 
>> 
>> Best regards,
>> Krzysztof
> 
> 

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