[SRU][OEM-B-OSP1][PATCH 0/4] alsa/sof: fix the hang issue on Dell Nebula MP platforms

Hui Wang hui.wang at canonical.com
Mon Sep 30 06:00:59 UTC 2019

BugLink: http://bugs.launchpad.net/bugs/1845904

Hanging after installation on Nebula MP.
Reported by ODM and we also can reproduce on the MP machine
that ODM provided

Intel debugged this issue for half month, finally they provided
4 patches to fix it. Intel tested these 4 patches on many many
sof machines, they worked well.

[Test Case]
Install oem image to Nebula MP machines, there is no hang anymore,
and the audio functions all work well.

[Regression Risk]
Low. Intel already tested these patches on many machines. And
we also teste them, the original issue is fixed by them and no
new issues found.

Pan Xiuli (1):
  ALSA: sof: refine stop-start sequence for driver and FW

Rander Wang (3):
  ALSA: hda: clear output link mappinp
  ALSA: SOF: disable L1SEN for capture stream
  ALSA: sof: disable debug message for production release

 include/sound/hda_register.h        |  2 ++
 sound/hda/ext/hdac_ext_controller.c |  3 +++
 sound/soc/sof/Makefile              |  2 --
 sound/soc/sof/intel/Makefile        |  2 --
 sound/soc/sof/intel/hda-pcm.c       | 18 ++++++++++++++++++
 sound/soc/sof/intel/hda.h           |  3 +++
 sound/soc/sof/pcm.c                 |  9 ++++++++-
 sound/soc/sof/sof-priv.h            |  1 +
 sound/soc/sof/xtensa/Makefile       |  2 --
 9 files changed, 35 insertions(+), 7 deletions(-)


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