[alsa-devel] [Linux-kernel] [PATCH v5 2/7] ASoC: tegra: Allow 24bit and 32bit samples

[Ben Dooks]

On 28/01/2020 12:13, Mark Brown wrote:
> On Mon, Jan 27, 2020 at 10:20:25PM +0300, Dmitry Osipenko wrote:
>> 24.01.2020 19:50, Jon Hunter пишет:
> 
>>>                  .rates = SNDRV_PCM_RATE_8000_96000,
>>>                  .formats = SNDRV_PCM_FMTBIT_S32_LE |
>>> -                          SNDRV_PCM_FMTBIT_S24_LE |
>>> +                          SNDRV_PCM_FMTBIT_S24_3LE |
> 
>> It should solve the problem in my particular case, but I'm not sure that
>> the solution is correct.
> 
> If the format implemented by the driver is S24_3LE the driver should
> advertise S24_3LE.

I am fairly sure the format is S24_LE, the tegra3 hardware only
supports 24bits padded to 32 bits.

>> The v5.5 kernel is released now with the broken audio and apparently
>> getting 24bit to work won't be trivial (if possible at all). Ben, could
>> you please send a patch to fix v5.5 by removing the S24 support
>> advertisement from the driver?
> 
> Why is that the best fix rather than just advertising the format
> implemented by the driver?
> 
> I really don't understand why this is all taking so long, this thread
> just seems to be going round in interminable circles long after it
> looked like the issue was understood.  I have to admit I've not read
> every single message in the thread but it's difficult to see why it
> doesn't seem to be making any progress.
> 


-- 
Ben Dooks				http://www.codethink.co.uk/
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