APPLIED[F]/cmt: [SRU][F/E][PATCH 0/6] alsa: make the dmic detection align to the mainline kernel-5.6

[Hui Wang]

On 2020/4/8 上午3:51, Seth Forshee wrote:
> On Tue, Apr 07, 2020 at 03:14:36PM +0800, Hui Wang wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1871284
>>
>> This patchset is already in the upstream kernel-5.6, so no need to
>> send for unstable.
>> And this patchset will remove an existing kernel module and add a new
>> kernel module, so need to change the ABI/modules.ignore manually.
>> The module removed: snd-intel-nhlt.ko
>> The module added:   snd-intel-dspcfg.ko
>>
>> [Impact]
>> There is already dmic detection code in the eoan and focal kernel, it
>> works well on CNL/WHL and later Intel platforms, but it doesn't work
>> on KBL, SKL and old Intel machines.
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869799/comments/14
>>
>> [Fix]
>> The upstream kernel updated the dmic detection code, it will exclude the
>> old intel machines by default. Then the old machines will use legacy hda
>> driver like before.
>>
>> [Test Case]
>> Install the testing kernel to Dell/LENOVO WHL/CNL and later machines,
>> they work as well as before.
>>
>> And a user verifed the testing kernel work on his KBL machine.
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869799/comments/17
>>
>> [Regression Risk]
>> Low, those patches come from mainline kernel, I have tested those patches
>> on the WHL/CNL and later machiens, a user tested it on a KBL machine.
> On the config change, it looks like you forgot to run updateconfigs (as
> I see additional changes when running it), and the annotations file does
> not carry annotations for options which are not user selectable. Since
> these options are only selected by other options, you should enforce the
> required user-selectable options instead.
>
> Applied to focal/master-next, with the last patch updated with the
> results of running updateconfigs and removing the annotations changes.
OK, got it, Thanks.
> Thanks!