Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=729b2b...
Commit: 729b2bdbfa19dd9be98dbd49caf2773b3271cc24
Parent: 7180c4c9e09888db0a188f729c96c6d7bd61fa83
Author: Zhao Yakui <yakui.zhao@intel.com>
AuthorDate: Wed Mar 19 13:26:54 2008 +0800
Committer: Len Brown <len.brown@intel.com>
CommitDate: Wed Apr 9 21:57:22 2008 -0400
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>
---
drivers/acpi/scan.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 42 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e6ce262..bd32351 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -692,6 +692,9 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
+ union acpi_object in_arg[3];
+ struct acpi_object_list arg_list = { 3, in_arg };
+ acpi_status psw_status = AE_OK;
struct acpi_device_id button_device_ids[] = {
{"PNP0C0D", 0},
@@ ...
