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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2010-09-16 00:30:43 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-09-24 16:55:47 -0400 |
| commit | a210080195c95ebca2a517ee3057d71607aa65e0 (patch) | |
| tree | 96aa2aee4b9bdbc747b7a0d7150d0b41650ebe90 /include/acpi | |
| parent | 2422084a94fcd5038406261b331672a13c92c050 (diff) | |
| download | lwn-a210080195c95ebca2a517ee3057d71607aa65e0.tar.gz lwn-a210080195c95ebca2a517ee3057d71607aa65e0.zip | |
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.h | 2 |
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 */ |