[RFC PATCH 2/7] ALSA: ac97: add an ac97 bus

Mark Brown [off-list ref] writes:

On Tue, May 03, 2016 at 09:43:20PM +0200, Robert Jarzmik wrote:

quoted

You probably mean the BITCLK clock.

quoted

What is a bit pesky about this clock is that it can either be mastered by
digital controller and the codec is a slave, or the other way around.

That's a bit surprising - I've never encountered a system that
impelemnts this, it may be permitted by the spec but it's always the
CODEC.  The master clock from the CODEC is often provided by the SoC but
I've not seen systems where anything other than the CODEC drives the
actual AC'97 bus.

Ok, so let's assume a one direction. I'll have a look how I could add this clock
to the probe() exactly as amba_probe() does.

It's not really adding anything though, it's just clumsy wording on
their part - it's not like we need to distinguish this from analogue
or any other type of AC'97 controllers.

quoted

Now if you prefer "ac97_controller" or something like that, that's as you wish,
the name does not matter that much to me ;)

Yes.

Okay, let me add this to my todo list for v2.
I already have suspend/resume/pm_suspend/pm_resume.

Cheers.

-- 
Robert