Re: [PATCH 3/4] ALSA: hda: Update and expose codec register procedures

[Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>]

> Again, we are not trying to force-expose stuff which does not work. In
> majority of the cases, non-HDMI codecs we're dealing with notify about
> just single analog endpoint. For now, it's 100% of the cases, but I'm
> aware of fact that RVPs and a dozen of Dell/Lenovo/Acer laptops do not
> equal to entire market.

We are in agreement, but since we don't have any ability to test those
alt/digital parts my take is 'don't even bother about them'.

> Remember that you can always use topology to "gate" userspace from
> streaming through endpoints which we do not work. And right now, we are
> working with topologies supporting single endpoint for non-HDMI devices.

May I ask how you 'gate' parts of a topology? Or did you mean that you
use different topologies?

> 
> So, this is a clear upgrade when compared to Analog/Alt
> Analog/Digitalh-hardcoded configuration used currently. That's on top of
> aligning with hda legacy behavior.

Agree, but it still leaves the door open to exposing those paths which
may or may not work - no one has ever tested them. It's better IMHO to
only allow for the analog path. If we can detect the presence of this
path, great.