APPLIED: [SRU][Focal][PATCH 0/3] change the ASoC card name and card longname to meet the requirement of alsa-lib-1.2.1 (Focal)

[Seth Forshee]

On Tue, Feb 11, 2020 at 11:12:49AM +0800, Hui Wang wrote:
> BugLink: http://bugs.launchpad.net/bugs/1862712
> 
> In the ubuntu-20.04, we integrate the alsa-lib-1.2.1.2, and from the
> alsa-lib-1.2.1, the ucm is put into a standalone package alsa-ucm-conf,
> and from the 1.2.1, the alsa-lib supports the ucm2.
> 
> In the alsa-ucm-conf-1.2.1.2, the ucm2 folders are named by new
> card name or longname, kernel-v5.5-rc1 has patches to change those
> names to new names. now we backport them to focal kernel.
> 
> [Impact]
> booting with the focal kernel, the audio driver can't find the ucm2
> confs, that is becuase alsa-lib-1.2.1 requires new cardname and long
> name, but focal kernel provides the old card names.
> 
> [Fix]
> backport 3 patches from v5.5-rc1.
> 
> 
> [Test Case]
> install the 20.04 daily build image, install the linux-firmware and
> alsa-ucm-conf, booting with the kernel which have those 3 patches,
> the alsa-lib could find the correct ucm2 confs.
> 
> [Regression Risk]
> It is low risk to focal.
> If users install focal kernel to bionic or disco, it will break
> the audio since the ucm in the bionic and disco still follow the old
> card name and longname, we need to link a new copy ucm named by new
> cardname or longname in the bionic and disco.

Applied to focal/master-next, thanks!