ACPI: introduce kernel parameter acpi_sleep=sci_force_enable
authorZhang Rui <rui.zhang@intel.com>
Wed, 30 Dec 2009 07:36:42 +0000 (15:36 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 12 May 2010 21:57:11 +0000 (14:57 -0700)
commit0c468b435fa14744fc25ad999d357afcba710954
treea5e05e8f0091f595224bc321f81c1db6981118e0
parent637f3674cbecf9bd2073276d16ebf31b8775bf7b
ACPI: introduce kernel parameter acpi_sleep=sci_force_enable

commit d7f0eea9e431e1b8b0742a74db1a9490730b2a25 upstream.

Introduce kernel parameter acpi_sleep=sci_force_enable

some laptop requires SCI_EN being set directly on resume,
or else they hung somewhere in the resume code path.

We already have a blacklist for these laptops but we still need
this option, especially when debugging some suspend/resume problems,
in case there are systems that need this workaround and are not yet
in the blacklist.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Documentation/kernel-parameters.txt
arch/x86/kernel/acpi/sleep.c
drivers/acpi/sleep.c
include/linux/acpi.h