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ACPI / ACPICA: Defer enabling of runtime GPEs (v3)

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The current ACPI GPEs initialization code has a problem that it
enables some GPEs pointed to by device _PRW methods, generally
intended for signaling wakeup events (system or device wakeup).
These GPEs are then almost immediately disabled by the ACPI namespace
scanning code with the help of acpi_gpe_can_wake(), but it would be
better not to enable them at all until really necessary.

Modify the initialization of GPEs so that the ones that have
associated _Lxx or _Exx methods and are not pointed to by any _PRW
methods will be enabled after the namespace scan is complete.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rafael J. Wysocki
2010-09-16 00:30:43 +02:00
committed by Len Brown
parent 2422084a94
commit a210080195
13 changed files with 94 additions and 140 deletions
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1
drivers/acpi/dock.c
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@@ -725,6 +725,7 @@ static void dock_notify(acpi_handle handle, u32 event, void *data)
complete_dock(ds);
dock_event(ds, event, DOCK_EVENT);
dock_lock(ds, 1);
acpi_update_gpes();
break;
}
if (dock_present(ds) || dock_in_progress(ds))