Re: [RFC PATCH 05/34] ASoC: sun8i-codec: Remove incorrect SND_SOC_DAIFMT_DSP_B

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On 2/17/20 9:02 AM, Mark Brown wrote:
> On Mon, Feb 17, 2020 at 12:42:21AM -0600, Samuel Holland wrote:
>> DSP_A and DSP_B are not interchangeable. The timing used by the codec in
>> DSP mode is consistent with DSP_A. This is verified with an EG25-G modem
>> connected to AIF2, as well as by comparing with the BSP driver.
>>
>> Remove the DSP_B option, as it is not supported by the hardware.
>>
>> Cc: stable@xxxxxxxxxx
>> Fixes: 36c684936fae ("ASoC: Add sun8i digital audio codec")
> 
> This can only break things for existing systems using stable, if they
> haven't noticed a problem with DSP B they'll certainly notice failing to
> set up the DAI at all without it.

Are you suggesting that I drop this patch entirely, or only that I remove the CC
to stable (and/or Fixes: tag)? Is this something that can't be removed once it's
there, or is the concern about making user-visible changes on stable?

Thanks,
Samuel



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