• Sakari Ailus's avatar
    PM: runtime: Add pm_runtime_get_if_active() · c111566b
    Sakari Ailus authored
    pm_runtime_get_if_in_use() bumps up the PM-runtime usage count if it
    is not equal to zero and the device's PM-runtime status is 'active'.
    This works for drivers that do not use autoidle, but for those that
    do, the function returns zero even when the device is active.
    
    In order to maintain sane device state while the device is powered on
    in the hope that it'll be needed, pm_runtime_get_if_active(dev, true)
    returns a positive value if the device's PM-runtime status is 'active'
    when it is called, in which case it also increments the device's usage
    count.
    
    If the second argument of pm_runtime_get_if_active() is 'false', the
    function behaves just like pm_runtime_get_if_in_use(), so redefine
    the latter as a wrapper around the former.
    Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
    [ rjw: Changelog ]
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    c111566b
runtime.c 50.5 KB