this patchset applies on top of "[PATCH v2 00/14] soundwire: intel: implement new ASoC interfaces".
It implements a series of improvements for: a) interrupt handling on Intel platforms in MSI mode b) race conditions on codec probe and enumeration c) suspend-resume issues (clock-stop mode not supported for now) d) underflow handling e) updates to the stream state machine which did not support valid ALSA transitions.
These patches were tested extensively on 4 different platforms and are viewed as required for any sort of SoundWire-based product.
Changes since v1: (no feedback received since October 23) added support for initialization_complete, integration with Realtek codecs exposed an additional race condition between the resume operation and restoration of settings in separate thread triggered by Slave status change. No other functional change
Bard Liao (3): soundwire: intel/cadence: fix timeouts in MSI mode soundwire: stream: only prepare stream when it is configured. soundwire: intel: reinitialize IP+DSP in .prepare()
Pierre-Louis Bossart (16): soundwire: fix race between driver probe and update_status callback soundwire: bus: add PM/no-PM versions of read/write functions soundwire: bus: write Slave Device Number without runtime_pm soundwire: intel: add helpers for link power down and shim wake soundwire: intel: Add basic power management support soundwire: intel: add pm_runtime support soundwire: intel: reset pm_runtime status during system resume soundwire: bus: add helper to reset Slave status to UNATTACHED soundwire: intel: call helper to reset Slave states on resume soundwire: bus: check first if Slaves become UNATTACHED soundwire: add enumeration_complete signaling soundwire: bus: add initialization_complete signaling soundwire: intel: disable pm_runtime when removing a master soundwire: bus: disable pm_runtime in sdw_slave_delete soundwire: stream: update state machine and add state checks soundwire: stream: do not update parameters during DISABLED-PREPARED transition
Documentation/driver-api/soundwire/stream.rst | 63 +++- drivers/soundwire/bus.c | 165 +++++++-- drivers/soundwire/bus.h | 3 + drivers/soundwire/bus_type.c | 5 + drivers/soundwire/cadence_master.c | 17 +- drivers/soundwire/cadence_master.h | 4 + drivers/soundwire/intel.c | 328 ++++++++++++++++-- drivers/soundwire/intel.h | 2 + drivers/soundwire/intel_init.c | 45 ++- drivers/soundwire/slave.c | 4 + drivers/soundwire/stream.c | 64 +++- include/linux/soundwire/sdw.h | 1 + include/linux/soundwire/sdw_intel.h | 2 + 13 files changed, 632 insertions(+), 71 deletions(-)