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| author | Zhao Yakui <yakui.zhao@intel.com> | 2008-03-19 06:26:54 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-04-10 03:57:22 +0200 |
| commit | 729b2bdbfa19dd9be98dbd49caf2773b3271cc24 (patch) | |
| tree | 525cca2b27a6252e54fea99db36d748ba299e32c /drivers/acpi/events | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmo... (diff) | |
| download | linux-729b2bdbfa19dd9be98dbd49caf2773b3271cc24.tar.xz linux-729b2bdbfa19dd9be98dbd49caf2773b3271cc24.zip | |
ACPI : Disable the device's ability to wake the sleeping system in the boot phase
In some machines some GPE is shared by several ACPI devices, for example:
sleep button, keyboard, mouse. At the same time one of them is
non-wake(runtime) device and the other are wake devices. In such case OSPM
should call the _PSW object to disable the device's ability to
wake the sleeping system in the boot phase.
Otherwise there will be ACPI interrupt flood triggered by the GPE input.
The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW.
So it is necessary to call _DSW object first. Only when it is not
present will the _PSW object used.
http://bugzilla.kernel.org/show_bug.cgi?id=10224
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/events')
0 files changed, 0 insertions, 0 deletions