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SubjectRe: [PATCH 2/2] ASoC: Intel: Add period size constraint on strago board
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On 7/30/20 10:27 AM, Pierre-Louis Bossart wrote:
>
>
>>> Is this patch required if you've already constrained the period sizes
>>> for the
>>> platform driver in patch1?
>>
>> Yes or alsa will select 320 as default period size for it.
>
> ok, then that's a miss in your patch1. 320 samples is a multiple of 1ms

typo: is NOT

> for 48kHz rates. I think it was valid only for the 16kHz VoIP paths used
> in some versions of Android, but that we don't support in the upstream
> code.
>
> To build on Takashi's answer, the real ask here is to require that the
> period be a multiple of 1ms, because that's the fundamental
> design/limitation of firmware. It doesn't matter if it's 48, 96, 192,
> 240, 480, 960 samples.

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