[PATCH 0/3] Rework GPE handling

From: Matthew Garrett
Date: Wed Sep 02 2009 - 14:10:36 EST

The current GPE code attempts to define GPEs as either runtime (the
default), wake or run/wake. These states are orthogonal to whether or
not a GPE is actually enabled or not. Further, various additional flags
are defined and set, but never used.

This architecture is additionally complicated by changing the type of a
GPE causing it to be disabled, resulting in complex functions that then
have to conditionally re-enable a GPE. It also makes it impossible to
determine how many consumers a given GPE has, preventing us from
being able to implement runtime power management for devices requiring
GPEs for wakeup notification.

This patchset adds a new, simpler API and transitions the existing users
over to it. It then removes the old code.

drivers/acpi/acpica/acevents.h | 6 -
drivers/acpi/acpica/aclocal.h | 2
drivers/acpi/acpica/evgpe.c | 150 ++++---------------------------------
drivers/acpi/acpica/evgpeblk.c | 164 +----------------------------------------
drivers/acpi/acpica/evxface.c | 14 ---
drivers/acpi/acpica/evxfevnt.c | 139 ++++++++++++++++++++++++++++++++--
drivers/acpi/button.c | 18 +++-
drivers/acpi/ec.c | 5 -
drivers/acpi/wakeup.c | 57 +++-----------
include/acpi/acpixf.h | 8 ++
include/acpi/actypes.h | 32 ++------
11 files changed, 197 insertions(+), 398 deletions(-)

Matthew Garrett | mjg59@xxxxxxxxxxxxx
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