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Date: Sun, 26 Dec 2010 12:47:06 +0100 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Len Brown <lenb@...nel.org> Cc: LKML <linux-kernel@...r.kernel.org>, ACPI Devel Maling List <linux-acpi@...r.kernel.org>, "Linux-pm mailing list" <linux-pm@...ts.linux-foundation.org> Subject: [PATCH] ACPI / ACPICA: Disable GPEs during initialization From: Rafael J. Wysocki <rjw@...k.pl> GPEs with corresponding _Lxx/_Exx control methods need to be disabled during initialization in case they have been enabled by the BIOS, so that they don't fire up until they are enabled by acpi_update_gpes(). References: https://bugzilla.kernel.org/show_bug.cgi?id=25412 Signed-off-by: Rafael J. Wysocki <rjw@...k.pl> --- drivers/acpi/acpica/evgpeinit.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-2.6/drivers/acpi/acpica/evgpeinit.c =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/evgpeinit.c +++ linux-2.6/drivers/acpi/acpica/evgpeinit.c @@ -408,6 +408,9 @@ acpi_ev_match_gpe_method(acpi_handle obj return_ACPI_STATUS(AE_OK); } + /* Disable the GPE in case it's been enabled already. */ + (void)acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); + /* * Add the GPE information from above to the gpe_event_info block for * use during dispatch of this GPE. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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