• Rafael J. Wysocki's avatar
    ACPI: Use system level attribute of wakeup power resources · 0596a52b
    Rafael J. Wysocki authored
    The system level attribute of ACPI power resources is the lowest
    system sleep level (S0, S2 etc.) in which the given resource can be
    "on" (ACPI 5.0, Section 7.1).  On the other hand, wakeup power
    resources have to be "on" for devices depending on them to be able to
    signal wakeup.  Therefore devices cannot wake up the system from
    sleep states higher than the minimum of the system level attributes
    of their wakeup power resources.
    
    Use the wakeup power resources' system level values to get the
    deepest system sleep state (highest system sleep level) the given
    device can wake up the system from.
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    0596a52b
scan.c 43.7 KB