With --test-quick-suspend-resume (fp6-device-tweaks 6) ModemManager sets
the modem terse before a suspend, but every connected QMI bearer keeps its
WDS event report subscription, and on the FP6 the data bearer technology
flips every few seconds while idle (LTE with 5G NSA), so the report still
ended a deep cycle within seconds. The patch adds a bearer step to terse:
the QMI bearer drops the event report of its WDS clients and the resume
sync re-arms them.
Dev phone, six logind-driven deep cycles: the report is gone from the
wake trace; three cycles ran their full 60 s alarm, the other three were
ended only by the modem writing its EFS through rmtfs. Same upstream
commit, patch 0004 on top of the three GNSS patches.
Jorijn van der Graaf
6938ec10b2