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

[Hui Wang]

On 2019/10/23 上午2:36, Seth Forshee wrote:
> 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.
OK, that is fine.
> Thanks,
> Seth
>