alsa/sof: let sof driver work with topology with volume and led control (focal)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Critical
|
Hui Wang |
Bug Description
[Impact]
In the ubuntu 20.04, we plan to integrate sof-firmware v1.4.2, the
topology of this version contains volume and led control, we need
to add this support in the sof driver, otherwise the sof will crash
when parsing the topology of v1.4.2. After adding these patches,
the sof still coudl work with topology without volume and led control.
[Fix]
Backported the patches from mainline kernel v5.5-c1
[Test Case]
Install the sof-firmware v1.4.2
boot the kernel with these patches, sof driver initializes successfully,
and we could get a working sound card after booting up.
Install the sof-firmware v1.3.1
boot the kernel with these patches, sof driver initializes successfully,
and we could get a working sound card after booting up.
[Regression Risk]
Low, the patches are backported from upstream kernel, and I tested
this patch on Lenovo and Dell dmic machines.
CVE References
Changed in linux (Ubuntu): | |
importance: | Undecided → Critical |
summary: |
alsa/sof: let sof driver work with topology with volume and led control + (focal) |
description: | updated |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1864398
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.