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authorRafael J. Wysocki <rjw@sisk.pl>2010-09-16 02:30:43 +0400
committerLen Brown <len.brown@intel.com>2010-09-25 00:55:47 +0400
commita210080195c95ebca2a517ee3057d71607aa65e0 (patch)
tree96aa2aee4b9bdbc747b7a0d7150d0b41650ebe90 /include/acpi
parent2422084a94fcd5038406261b331672a13c92c050 (diff)
downloadlinux-a210080195c95ebca2a517ee3057d71607aa65e0.tar.xz
ACPI / ACPICA: Defer enabling of runtime GPEs (v3)
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>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpixf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c0786d446a00..87b0f31d18f3 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -308,6 +308,8 @@ acpi_install_gpe_block(acpi_handle gpe_device,
acpi_status acpi_remove_gpe_block(acpi_handle gpe_device);
+acpi_status acpi_update_gpes(void);
+
/*
* Resource interfaces
*/