Hi all, this series addresses issues with ordering of HDA codec and controller suspends in the runtime PM flows. The implemented logic for SOF is similar to what has been used by the Intel AZX HDA driver.
To implement this, first a fix is needed to hdac_hdmic ASoC codec driver. SOF framework also needs to be extended to allow SOF devices to implement a runtime_idle callback. Third, concrete implementation is in a separate patch for APL/CNL Intel hardware, for which strict ordering of codec-controller power down sequence needs to be maintained.
As this extends the SOF device interface, Pierre asked me to send to the list for wider review. This series has been prereviewd at SOF github as: https://github.com/thesofproject/linux/pull/1003
v2 resend: - no changes since v2 -- resending as 2 weeks has passed and multiple reviewed-by acks already received v2: - Rebased on broonie/for-next, there was a conflict with patch "ASoC: SOF: Intel: hda: release link DMA for paused streams during suspend" - Added Reviewed-by tags from v1 round
Kai Vehmanen (3): ASoC: hdac_hdmi: report codec link up/down status to bus ASoC: SOF: add runtime idle callback ASoC: SOF: Intel: implement runtime idle for CNL/APL
sound/soc/codecs/hdac_hdmi.c | 2 ++ sound/soc/sof/intel/apl.c | 1 + sound/soc/sof/intel/cnl.c | 1 + sound/soc/sof/intel/hda-dsp.c | 13 +++++++++++++ sound/soc/sof/intel/hda.h | 1 + sound/soc/sof/ops.h | 8 ++++++++ sound/soc/sof/pm.c | 8 ++++++++ sound/soc/sof/sof-acpi-dev.c | 2 +- sound/soc/sof/sof-pci-dev.c | 2 +- sound/soc/sof/sof-priv.h | 2 ++ 10 files changed, 38 insertions(+), 2 deletions(-)