user/sven/linux.git/include/linux/pm-trace.h, branch v4.9.46Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v4.9.462015-03-18T14:54:27ZPM / sleep: add pm-trace support for suspending phase2015-03-18T14:54:27ZZhonghui Fuzhonghui.fu@linux.intel.com2015-03-18T14:54:27Zurn:sha1:431d452af13720463dda498999b2e9a08729c03a
Occasionally, the system can't come back up after suspend/resume
due to problems of device suspending phase. This patch make
PM_TRACE infrastructure cover device suspending phase of
suspend/resume process, and the information in RTC can tell
developers which device suspending function make system hang.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>