I am using Hikey970 board. After writing “mem” device goes to suspend state properly within few seconds.
But Once i press power button (on the board) it takes more time(~45 secs) to resume, and i don’t see any log on the console except this “NOTICE: [set_ics_power_up] done!”.
I don’t see logs related to resume also, unable to debug why it is taking more time to resume.
hikey970:/ # echo mem > /sys/power/state
[ 48.341397] PM: suspend entry 2019-09-11 11:27:55.271446870 UTC
[ 48.347410] PM: Syncing filesystems … done.
[ 48.352391] PM: Preparing system for sleep (mem)
[ 48.358483] Freezing user space processes … (elapsed 0.004 seconds) done.
[ 48.370465] Freezing remaining freezable tasks … (elapsed 0.003 seconds) done.
[ 48.381194] PM: Suspending system (mem)
[ 48.385081] Suspending console(s) (use no_console_suspend to debug)
NOTICE: [set_ics_power_down] done!
NOTICE: [set_ics_power_up] done!