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2 Commits

Author SHA1 Message Date
Jesse Barnes
1a133e0c9d ACPI: make ACPI button funcs no-ops if not built in 
Yakui pointed out that we don't properly no-op the ACPI button routines
if the button driver isn't built in.  This will cause problems if ACPI
is disabled, so provide stub functions in that case.

Reported-by: ykzhao <yakui.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
 2009-09-17 14:48:23 -07:00
Jesse Barnes
7e12715ecc ACPI button: provide lid status functions 
Some drivers need to know when a lid event occurs and get the current
status.  This can be useful for when a platform firmware clobbers some
hardware state at lid time, and a driver needs to restore things when
the lid is opened again.

Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
 2009-09-10 16:09:11 -07:00