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)
committerLen Brown <len.brown@intel.com>
Wed, 30 Dec 2009 23:32:01 +0000 (18:32 -0500)
commitd7f0eea9e431e1b8b0742a74db1a9490730b2a25
tree606342d4ce0085eaf8ef5c3924b70001d2f0eccc
parent6b7b284958d47b77d06745b36bc7f36dab769d9b
ACPI: introduce kernel parameter acpi_sleep=sci_force_enable

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>
Documentation/kernel-parameters.txt
arch/x86/kernel/acpi/sleep.c
drivers/acpi/sleep.c
include/linux/acpi.h