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  1. Bug #1860697
  2. Comment #8

Comment 8 for bug 1860697

Revision history for this message
Hui Wang (hui.wang) wrote :

Found the problem in the kernel, our focal kernel introduced a patch from stable kernel, that patch make the sof driver not work, either we revert this patch or we need to backport more patches instead of only this one:

Author: Ranjani Sridharan <email address hidden>
Date: Mon Nov 4 14:48:12 2019 -0800

    ASoC: SOF: topology: set trigger order for FE DAI link

    BugLink: https://bugs.launchpad.net/bugs/1858428

    [ Upstream commit 5eee2b3f60065a2530d13f28e771be48b989eb4c ]

    Set trigger order for FE DAI links to SND_SOC_DPCM_TRIGGER_POST
    to trigger the BE DAI's before the FE DAI's. This prevents the
    xruns seen on playback pipelines using the link DMA.

    Signed-off-by: Ranjani Sridharan <email address hidden>
    Signed-off-by: Pierre-Louis Bossart <email address hidden>
    Link: https://<email address hidden>
    Signed-off-by: Mark Brown <email address hidden>
    Signed-off-by: Sasha Levin <email address hidden>
    Signed-off-by: Seth Forshee <email address hidden>