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authorRafael J. Wysocki <rjw@sisk.pl>2010-09-16 00:30:43 +0200
committerLen Brown <len.brown@intel.com>2010-09-24 16:55:47 -0400
commita210080195c95ebca2a517ee3057d71607aa65e0 (patch)
tree96aa2aee4b9bdbc747b7a0d7150d0b41650ebe90 /drivers/acpi/acpica/utglobal.c
parent2422084a94fcd5038406261b331672a13c92c050 (diff)
downloadop-kernel-dev-a210080195c95ebca2a517ee3057d71607aa65e0.zip
op-kernel-dev-a210080195c95ebca2a517ee3057d71607aa65e0.tar.gz
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 'drivers/acpi/acpica/utglobal.c')
-rw-r--r--drivers/acpi/acpica/utglobal.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 0558747..75faf67 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -766,6 +766,7 @@ acpi_status acpi_ut_init_globals(void)
acpi_gbl_gpe_fadt_blocks[0] = NULL;
acpi_gbl_gpe_fadt_blocks[1] = NULL;
acpi_current_gpe_count = 0;
+ acpi_all_gpes_initialized = FALSE;
/* Global handlers */
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