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    PM: cpuidle/suspend: Add s2idle usage and time state attributes · 64bdff69
    Rafael J. Wysocki 提交于
    Add a new attribute group called "s2idle" under the sysfs directory
    of each cpuidle state that supports the ->enter_s2idle callback
    and put two new attributes, "usage" and "time", into that group to
    represent the number of times the given state was requested for
    suspend-to-idle and the total time spent in suspend-to-idle after
    requesting that state, respectively.
    
    That will allow diagnostic information related to suspend-to-idle
    to be collected without enabling advanced debug features and
    analyzing dmesg output.
    Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
    64bdff69
sysfs.c 18.1 KB