On 24/06/2024 10:51, Elinor Montmasson wrote:
> From: "Krzysztof Kozlowski" <krzk@xxxxxxxxxx>
> Sent: Sunday, 23 June, 2024 13:09:33
>> On 20/06/2024 15:25, Elinor Montmasson wrote:
>>> imx-audio-spdif was merged into the fsl-asoc-card driver, and therefore
>>> removed.
>>
>> So what happens with all existing users (e.g. DTS)? They become
>> invalid/not supported?
>
>
> Next commits, 8/9 and 9/9, update all DTS files that currently use
> the "fsl,imx-audio-spdif" compatible.
You mean in-tree. I mean all users, in- and out-of-tree. Other projects.
> From the users point of view, currently configured spdif audio cards
> will behave just the same.
>
>
>> After quick look, I do not see backwards compatibility in the driver and
>> above commit msg tells me nothing about ABI break.
>
>
> For the next version I will state in this commit message the upcoming modifications to DTS
> and compatibility, why it will be done, and that support for existing DTS is not dropped.
>
> Previous `imx-spdif` driver used the dummy codec instead of
> using declared spdif codecs. It was discussed in previous version of this contribution
> that using the dummy codec isn't good practice. So one to one backward compatibility
> isn't really possible.
Heh, that's not good. This is improvement, cleanup. While it is
important and useful, it should also not break existing users.
Best regards,
Krzysztof
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