Power: Report suspend times from last_suspend_time

[firefly-linux-kernel-4.4.55.git] / Documentation / ABI / testing / sysfs-kernel-wakeup_reasons

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+What:          /sys/kernel/wakeup_reasons/last_resume_reason
+Date:          February 2014
+Contact:       Ruchi Kandoi <kandoiruchi@google.com>
+Description:
+               The /sys/kernel/wakeup_reasons/last_resume_reason is
+               used to report wakeup reasons after system exited suspend.
+
+What:          /sys/kernel/wakeup_reasons/last_suspend_time
+Date:          March 2015
+Contact:       jinqian <jinqian@google.com>
+Description:
+               The /sys/kernel/wakeup_reasons/last_suspend_time is
+               used to report time spent in last suspend cycle. It contains
+               two numbers (in seconds) separated by space. First number is
+               the time spent in suspend and resume processes. Second number
+               is the time spent in sleep state.
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