Hi, The following series will enable the the Low Power Audio (LPA) playback on Intel platforms when using IPC4. The support is closely follows how IPC3 supports similar use case. All depending patches are upstream and our CI have been testing this feature for some time without issues. Regards, Peter --- Rander Wang (5): ASoC: SOF: Introduce a new set_pm_gate() IPC PM op ASoC: SOF: Intel: hda-dsp: use set_pm_gate according to ipc version ASoC: SOF: ipc4: Wake up dsp core before sending ipc msg ASoC: SOF: Intel: Enable d0i3 work for ipc4 ASoC: SOF: Intel: hda-dsp: Set streaming flag for d0i3 sound/soc/sof/intel/cnl.c | 2 ++ sound/soc/sof/intel/hda-dsp.c | 46 ++++++++++++++++++++++++++--------- sound/soc/sof/intel/hda-ipc.c | 28 +++++++++++++++++++++ sound/soc/sof/intel/hda.h | 2 ++ sound/soc/sof/intel/mtl.c | 2 ++ sound/soc/sof/ipc3.c | 18 ++++++++++++++ sound/soc/sof/ipc4.c | 24 ++++++++++++++++++ sound/soc/sof/sof-priv.h | 2 ++ 8 files changed, 113 insertions(+), 11 deletions(-) -- 2.39.1
