[alsa-devel] [PATCH 4/9] ASoC: sun8i-codec: Add support for A64 SoC

[Maxime Ripard]

On Wed, Dec 06, 2017 at 03:48:10PM +0000, Mark Brown wrote:
> On Wed, Dec 06, 2017 at 04:32:05PM +0100, Maxime Ripard wrote:
> 
> > BCLK is sample rate * sample size * channels, and LRCK is running at
> > the sample rate. So the ratio is the sample size * channels.
> 
> > Anything deviating from those standard i2s concepts should at least be
> > documented, with arguments to back them off.
> 
> BCLK can be higher than the minimum there in most formats, though some
> hardware is more restrictive so we tend to go for the minimum clock rate.

How does that work in such a case? Is LRCK faster as well, and we're
keeping the same ratio, or will the codec buffer the current sample
until the next word?

Is it usually a property of the codec or the DAI?

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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