Hi Greg at al,
Please the following commit:
commit 024aa8732acb7d2503eae43c3fe3504d0a8646d0 Author: Rafael J. Wysocki rafael.j.wysocki@intel.com Date: Thu Nov 28 23:50:40 2019 +0100
ACPI: PM: s2idle: Rework ACPI events synchronization
Note that the EC GPE processing need not be synchronized in acpi_s2idle_wake() after invoking acpi_ec_dispatch_gpe(), because that function checks the GPE status and dispatches its handler if need be and the SCI action handler is not going to run anyway at that point.
Moreover, it is better to drain all of the pending ACPI events before restoring the working-state configuration of GPEs in acpi_s2idle_restore(), because those events are likely to be related to system wakeup, in which case they will not be relevant going forward.
Rework the code to take these observations into account.
Tested-by: Kenneth R. Crudup kenny@panix.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com
into 5.4.y as it is needed to fix an ACPI wakeup events synchronization issue in suspend-to-idle.
Note that this commit was present in 5.5.0, so 5.4.y is the only -stable series needing this fix.
Cheers, Rafael