Re: [PATCH 1/2] drm/i2c: tda998x: adjust CTS_N audio pre-divider calculation

[Sven Van Asbroeck]

On Fri, Feb 22, 2019 at 4:36 PM Russell King - ARM Linux admin
<linux@xxxxxxxxxxxxxxx> wrote:
> There's actually two threads of conversation going, and I recently had
> a reply from the maintainer of hdmi-codec suggesting a way forward - so
> I've coded that up as the three RFC patches you should have just
> received.

Thank you, that's awesome !

> It probably would be better to try and find some generic way to deal
> with this.
>
> After all, the I2S source probably knows which ratios it supports.
> Given that many sinks support a limited set of values as well, if
> ASoC core knew the supported set at each end of an I2S DAI format
> link, it could probably select a working bclk ratio automatically.

Agree, possibly the same way the ASoC core auto-matches both sides when they
are connected with a dai_link? Pardon my ignorance.

Of course the auto-matching should only happen when both sides provide a
bclk ratio range - to avoid having to retro-fit every single dai.