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acpi_ev_enable_gpe() should enable the GPE at the hardware level
regardless of the value of the GPE's runtime reference counter.
There are only two callers of acpi_ev_enable_gpe(), acpi_enable_gpe()
and acpi_set_gpe(). The first one checks the GPE's runtime
reference counter itself and only calls acpi_ev_enable_gpe() if it's
equal to one, and the other one is supposed to enable the GPE
unconditionally (if called with ACPI_GPE_ENABLE).
This change fixes the problem in acpi_enable_wakeup_device() where
the GPE will not be enabled for wakeup if it's runtime reference
counter is zero, which is a regression from 2.6.33.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Robert Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: replace acpi_integer by u64
ACPICA: Update version to 20100121.
ACPICA: Remove unused uint32_struct type
ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object
ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type
ACPICA: Predefined name repair: fix NULL package elements
ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls
ACPICA: Update all ACPICA copyrights and signons to 2010
ACPICA: Update for new gcc-4 warning options
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Add 2010 copyright to all module headers and signons, including
the Linux header. This affects virtually every file in the ACPICA
core subsystem, iASL compiler, and all utilities.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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To fix a bug and address the reviewers' comments regarding the ACPI
GPE refcounting patch, do the following additional changes:
o Remove the second argument of acpi_ev_enable_gpe(),
'write_to_hardware', because it is not necessary any more.
o Add the "bad parameter" test against 'type' in
acpi_enable_gpe() and acpi_disable_gpe().
o Make acpi_enable_gpe() only check 'status' for runtime GPEs if
acpi_ev_enable_gpe() was actually called.
o Make acpi_disable_gpe() return 'status' returned by
acpi_ev_disable_gpe() and fix a bug where ACPI_GPE_TYPE_WAKE
and ACPI_GPE_TYPE_RUNTIME were exchanged by mistake.
o Add comments explaining why acpi_set_gpe() is used by the ACPI EC
driver.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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ACPI GPEs may map to multiple devices. The current GPE interface
only provides a mechanism for enabling and disabling GPEs, making
it difficult to change the state of GPEs at runtime without extensive
cooperation between devices.
Add an API to allow devices to indicate whether or not they want
their device's GPE to be enabled for both runtime and wakeup events.
Remove the old GPE type handling entirely, which gets rid of various
quirks, like the implicit disabling with GPE type setting. This
requires a small amount of rework in order to ensure that non-wake
GPEs are enabled by default to preserve existing behaviour.
Based on patches from Matthew Garrett <mjg@redhat.com>.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Needed by drivers for new ACPi tables. Internal versions of
these functions still use 32-bit max transfers, in order to
minimize disruption and stack use for the standard ACPI registers
(FADT-based).
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Split long lines, update comments.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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also, delete sleep/ and delete ACPI_CFLAGS from Makefile
Signed-off-by: Len Brown <len.brown@intel.com>
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