[PATCH] PM: s2idle: Introduce syscore callbacks in s2idle flow

Claude Yen claude.yen at mediatek.com
Tue Sep 1 03:04:18 EDT 2020


This series based on 5.9-rc1
This patch makes s2idle call existing syscore callbacks. Currently,
when s2idle is selected as system suspend method, callbacks hooked
by register_syscore_ops() will not be triggered. This may induce
unexpected results. 

For example, sched_clock_suspend() was added to s2idle flow in
commit 3f2552f7e9c5 ("timers/sched_clock: Prevent generic sched_clock
wrap caused by tick_freeze()") to fix clock wrap problem. However,
sched_clock_suspend() is originally registered in syscore callback.
With this patch, if another syscore callback is needed in s2idle,
additional migration effort could be saved.



*** BLURB HERE ***

claude.yen (1):
  PM: s2idle: Introduce syscore callbacks in s2idle flow

 drivers/cpuidle/cpuidle.c |   36 ++++++++++++++++++++++++++++++++----
 kernel/cpu_pm.c           |   17 +++++++++++++++++
 kernel/time/tick-common.c |   17 ++---------------
 3 files changed, 51 insertions(+), 19 deletions(-)

--
1.7.9.5


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