This series provides a solution to solve a corner case issue where the manager device may become pm_runtime active, but without ALSA/ASoC requesting any functionality from the peripherals. In this case, the hardware peripheral device will report as ATTACHED and its initialization routine will be executed. If this initialization routine initiates any sort of deferred processing, there is a possibility that the manager could suspend without the peripheral suspend sequence being invoked: from the pm_runtime framework perspective, the peripheral is *already* suspended.
Pierre-Louis Bossart (3): soundwire: intel: prevent pm_runtime resume prior to system suspend soundwire: intel: disable WAKEEN in pm_runtime resume soundwire: bus: pm_runtime_request_resume on peripheral attachment
drivers/soundwire/bus.c | 12 ++++++++++++ drivers/soundwire/intel.c | 6 ++++++ 2 files changed, 18 insertions(+)