From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Len Brown <lenb@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux-pm mailing list <linux-pm@lists.linux-foundation.org>
Subject: [PATCH] ACPI / ACPICA: Disable GPEs during initialization
Date: Sun, 26 Dec 2010 12:47:06 +0100 [thread overview]
Message-ID: <201012261247.06858.rjw@sisk.pl> (raw)
From: Rafael J. Wysocki <rjw@sisk.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@sisk.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.
next reply other threads:[~2010-12-26 11:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-26 11:47 Rafael J. Wysocki [this message]
2010-12-26 22:05 ` [PATCH] ACPI / ACPICA: Disable GPEs during initialization Len Brown
2010-12-26 22:05 ` Len Brown
2010-12-26 11:47 Rafael J. Wysocki
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