we've been stuck with problems in the dual-amplifier configurations where one of the two devices seems to become UNATTACHED and never regains sync, see https://github.com/thesofproject/linux/issues/3638. This is a rather infrequent issue that may happen once or twice per month, but still it remains a concern. One possibility is that the device does lose sync but somehow our hardware detection fails to see it resync. This series just adds a basic read directly from the PING frames to help confirm if yes/no the device regain sync. The change is mainly on soundwire. @Mark, Could you ack the ASoC patch if it looks good to you? Pierre-Louis Bossart (4): soundwire: add read_ping_status helper definition in manager ops soundwire: intel/cadence: expose PING status in manager ops soundwire: add sdw_show_ping_status() helper ASoC: codecs: show PING status on resume failures drivers/soundwire/bus.c | 32 ++++++++++++++++++++++++++++++ drivers/soundwire/cadence_master.c | 8 ++++++++ drivers/soundwire/cadence_master.h | 2 ++ drivers/soundwire/intel.c | 1 + include/linux/soundwire/sdw.h | 5 +++++ sound/soc/codecs/max98373-sdw.c | 2 ++ sound/soc/codecs/rt1308-sdw.c | 2 ++ sound/soc/codecs/rt1316-sdw.c | 2 ++ sound/soc/codecs/rt5682-sdw.c | 2 ++ sound/soc/codecs/rt700-sdw.c | 2 ++ sound/soc/codecs/rt711-sdca-sdw.c | 2 ++ sound/soc/codecs/rt715-sdca-sdw.c | 2 ++ sound/soc/codecs/rt715-sdw.c | 2 ++ 13 files changed, 64 insertions(+) -- 2.25.1
