From 32bfa56ac158c1ebcc82df2518860f824be5e5be Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 10 Dec 2017 01:02:13 +0100 Subject: PM / core: Direct DPM_FLAG_LEAVE_SUSPENDED handling Make the PM core handle DPM_FLAG_LEAVE_SUSPENDED directly for devices whose "noirq", "late" and "early" driver callbacks are invoked directly by it. Namely, make it skip all of the system-wide resume callbacks for such devices with DPM_FLAG_LEAVE_SUSPENDED set if they are in runtime suspend during the "noirq" phase of system-wide suspend (or analogous) transitions or the system transition under way is a proper suspend (rather than anything related to hibernation) and the device's wakeup settings are compatible with runtime PM (that is, the device cannot generate wakeup signals at all or it is allowed to wake up the system from sleep). Signed-off-by: Rafael J. Wysocki --- Documentation/driver-api/pm/devices.rst | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation/driver-api') diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst index 07026811dcae..1128705a5731 100644 --- a/Documentation/driver-api/pm/devices.rst +++ b/Documentation/driver-api/pm/devices.rst @@ -816,3 +816,12 @@ appropriate in its "noirq" resume callback, which is executed regardless of whether or not the device is left suspended, but the other resume callbacks (except for ``->complete``) will be skipped automatically by the PM core if the device really can be left in suspend. + +For devices whose "noirq", "late" and "early" driver callbacks are invoked +directly by the PM core, all of the system-wide resume callbacks are skipped if +``DPM_FLAG_LEAVE_SUSPENDED`` is set and the device is in runtime suspend during +the ``suspend_noirq`` (or analogous) phase or the transition under way is a +proper system suspend (rather than anything related to hibernation) and the +device's wakeup settings are suitable for runtime PM (that is, it cannot +generate wakeup signals at all or it is allowed to wake up the system from +sleep). -- cgit v1.2.3