[PATCH 0/2] soundwire: improve pm_runtime handling

[Bard Liao]

This patchset improves the pm_runtime behavior in rare corner cases
identified by the Intel CI in the last 6 months.

a) in stress-tests, it's not uncommon to see the following type of
warnings when the codec reports as ATTACHED

    "rt711 sdw:0:025d:0711:00: runtime PM trying to activate child device
    sdw:0:025d:0711:00 but parent (sdw-master-0) is not active"

This warning was not correlated with any functional issue, but it
exposed a design issue on when to enable pm_runtime. The recommended
practice in the pm_runtime documentation is to keep the devices in
'suspended' mode and mark them as 'active' when they are really
functional.

Pierre-Louis Bossart (2):
  soundwire: intel_auxdevice: enable pm_runtime earlier on startup
  soundWire: intel_auxdevice: resume 'sdw-master' on startup and system
    resume

 drivers/soundwire/intel_auxdevice.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

-- 
2.25.1