NAK[Unstable]: [SRU][EOAN/unstable][PATCH 0/1] alsa/sof: Enable SOF_HDA link and codec

[Seth Forshee]

On Thu, Oct 17, 2019 at 08:28:49PM +0800, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1848490
> 
> So far, only OEM-B-OSP1, EOAN and later kernels have the alsa/sof driver,
> and the OEM-B-OSP1 kernel already enabled these CONFIGs.
> 
> [Impact]
> We tested the EOAN kernel on the LENOVO or Dell machines which have
> dmic directly connnected to PCH, the dmic didn't work.
> 
> [Fix]
> We need to enable SOF_HDA link and codec, then the sof driver
> and Legacy HDA driver work together to make the dmic work.
> 
> [Test Case]
> Install the latest 19.10 image, build a new kernel with this
> patch and replace the existing kernel, After installing the blacklist
> package (blacklist snd_hda_intel and snd_soc_skl) and ucm package,
> the dmic and all output devices (speaker/hdmi) work.
> 
> [Regression Risk]
> Low, these configs are already enabled in the oem-b-osp1 kernel
> for a long time, and we tested it on many lenovo/dell machines witch
> have or have no dmic, all worked well.

As discussed, I've applied the config changes recommended to us by one
of the upstream Intel ASoC maintainers to unstable. Therefore we won't
apply this patch there.

Thanks,
Seth