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

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On 05/01/2020 10:53, Ben Dooks wrote:


On 2020-01-05 01:48, Dmitry Osipenko wrote:
05.01.2020 03:04, Ben Dooks пишет:
[snip]

I've just gone through testing.

Some simple data tests show 16 and 32-bits work.

The 24 bit case seems to be weird, it looks like the 24-bit expects
24 bit samples in 32 bit words. I can't see any packing options to
do 24 bit in 24 bit, so we may have to remove 24 bit sample support
(which is a shame)

My preference is to remove the 24-bit support and keep the 32 bit in.


Interesting.. Jon, could you please confirm that 24bit format isn't
usable on T30?

If there is an option of 24 packed into 32, then I think that would work.

I can try testing that with raw data on Monday.

I need to check some things, I assumed 24 was 24 packed bits, it looks
like the default is 24 in 32 bits so we may be ok. However I need to
re-write my test case which assumed it was 24bits in 3 bytes (S24_3LE).

I'll follow up later,



--
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius

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