![]() The wakeup.prepared flag is used for marking devices that have the wake-up power already enabled, so that the wake-up power is not enabled twice in a row for the same device. This assumes, however, that device wake-up power will only be enabled once, while the device is being prepared for a system-wide sleep transition, and the second attempt is made by acpi_enable_wakeup_device_prep(). With the upcoming PCI wake-up rework this assumption will not hold any more for PCI bridges and the root bridge whose wake-up power may be enabled as a result of wake-up enable propagation from other devices (eg. add-on devices that are not associated with any GPEs). Thus, there may be many attempts to enable wake-up power on a PCI bridge or the root bridge during a system power state transition and it's better to replace wakeup.prepared with a reference counter. Reviewed-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> |
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.. | ||
platform | ||
acexcep.h | ||
acnames.h | ||
acoutput.h | ||
acpi.h | ||
acpi_bus.h | ||
acpi_drivers.h | ||
acpi_numa.h | ||
acpiosxf.h | ||
acpixf.h | ||
acrestyp.h | ||
actbl.h | ||
actbl1.h | ||
actypes.h | ||
container.h | ||
pdc_intel.h | ||
processor.h | ||
reboot.h | ||
video.h |