APPLIED[Unstable]/Cmt: [SRU][F/OEM-5.6/G][PATCH 0/5] improve the amd renoir audio driver to prepare to work with ucm3

[Hui Wang]

On 2020/7/18 上午6:35, seth.forshee at canonical.com wrote:
> On Thu, Jul 16, 2020 at 09:24:19AM +0800, Hui Wang wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1887734
>>
>> For focal and oem-5.6 kernel, these all 5 patches are needed, for
>> groovy kernel, since the 1st patch is already in the 5.8 kernel, the
>> groovy kernel only needs the last 3 patches [3/5, 4/5 and 5/5]. BTW
>> the last 3 patches will be in the mainline kernel 5.9.
>>
>> [Impact]
>> the alsa upstream worte the ucm3 files for amd renoir audio, but to
>> load the ucm3, it depends on the kernel module name, and the upstream
>> ucm3 needs the name snd-xxx, so we need to backport the patches
>> from mainline kernel to change the kernel module name to meet ucm3
>> requirement. BTW, there are some dmic dynamically detection patches,
>> we integrate them too.
>>
>> [Fix]
>> Backport 4 patches from upstream.
>>
>> [Test Case]
>> boot the kernel with these patches on amd renoir machines (lenovo
>> machines), the audio driver works well (via command line like
>> aplay or areord), then upgrade the alsa-lib and alsa-ucm-conf to
>> 1.2.3.2, now we could see the audio devices from gnome, and they work
>> well.
>>
>> [Regression Risk]
>> Low, this SRU are only specific to soc/amd/renoir, and we already
>> tested on 2 lenovo machines, their audio worked as before.
> Some of these patches are noted as coming from a maintainer tree but are
> not marked as sauce. However they are already in linux-next, so should
> be noted as coming from there instead. Please be more careful about this
> in the future.
>
> Applied to unstable with the commit messages updated to indicate that
> they were cherry picked from linux-next. Thanks!

Oh, got it. will be more careful about this in the future.

Thanks.