Re: [alsa-devel] [PATCH] ASoC: rt5659: Add mclk controls

[Pierre-Louis Bossart]

On 8/10/16 12:52 PM, Mark Brown wrote:
> On Wed, Aug 10, 2016 at 12:31:28PM -0500, Pierre-Louis Bossart wrote:
>
> > If we want to be consistent then we need to have a framework that handles
> > both the SOC clock sources and the codec internal clock tree (including
> > dividers and switches)
> > I wonder if what you are hinting at is the codec driver modeling its
> > internal PLL/clock tree with the clock API?
>
> I'm not just hinting at that, I've openly stated it quite a few times
> now!  :P  For the simpler CODECs it's kind of marginal if you need to
> bother but for anything more complex (even things with PLLs) it seems
> like the way forwards.

interesting, thanks for the precision. I must admit I missed this 
concept completely and I didn't see any codec vendors work in this 
direction so far. Ironically the x86 part may be the most straightforward...