[SRU] [G/Unstable/OEM-5.10] [PATCH 0/4] Fix regression introduced by codec PM change

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1912676

[Impact]
After the codec PM optimization, laptops with SOF may take very long to
suspend. In addition to that, HDA may not be able to be runtim suspended
again after resume from hibernation.

[Fix]
Prevent the SOF driver touches codec during system suspend, and properly
refcount the PM usage counter.

[Test]
On an affected SOF system, it takes 5 mins to suspend.
On another affected HDA system, S4 resume causes high power consumption
becuase HDA controller can't be runtime suspended.

Both issues are gone by applying these patches.

[Where problems could occur]
If somehow any laptop depends on the old behavior to work properly, this
can break them. It's highly unlikely though.

Kai-Heng Feng (4):
  ASoC: SOF: Intel: hda: Resume codec to do jack detection
  ASoC: SOF: Intel: hda: Modify existing helper to disable WAKEEN
  ASoC: SOF: Intel: hda: Avoid checking jack on system suspend
  ALSA: hda: Balance runtime/system PM if direct-complete is disabled

 sound/pci/hda/hda_codec.c       | 24 +++++++-----------------
 sound/soc/sof/intel/hda-codec.c | 19 ++++++++-----------
 sound/soc/sof/intel/hda-dsp.c   |  9 ++++++---
 sound/soc/sof/intel/hda.h       |  2 +-
 4 files changed, 22 insertions(+), 32 deletions(-)

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2.29.2