linux-toradex.git/include/linux/acpi.h, branch v2.6.32.31 Linux kernel for Apalis and Colibri modules ACPI: Unconditionally set SCI_EN on resume 2010-08-02T17:21:25+00:00 Matthew Garrett mjg@redhat.com 2010-05-11T17:49:25+00:00 1e2894c496bbb024c457d2240559631f12efd019 commit b6dacf63e9fb2e7a1369843d6cef332f76fca6a3 upstream. The ACPI spec tells us that the firmware will reenable SCI_EN on resume. Reality disagrees in some cases. The ACPI spec tells us that the only way to set SCI_EN is via an SMM call. https://bugzilla.kernel.org/show_bug.cgi?id=13745 shows us that doing so may break machines. Tracing the ACPI calls made by Windows shows that it unconditionally sets SCI_EN on resume with a direct register write, and therefore the overwhelming probability is that everything is fine with this behaviour. Signed-off-by: Matthew Garrett <mjg@redhat.com> Tested-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com> Cc: Kamal Mostafa <kamal@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit b6dacf63e9fb2e7a1369843d6cef332f76fca6a3 upstream.

The ACPI spec tells us that the firmware will reenable SCI_EN on resume.
Reality disagrees in some cases. The ACPI spec tells us that the only way
to set SCI_EN is via an SMM call.
https://bugzilla.kernel.org/show_bug.cgi?id=13745 shows us that doing so
may break machines. Tracing the ACPI calls made by Windows shows that it
unconditionally sets SCI_EN on resume with a direct register write, and
therefore the overwhelming probability is that everything is fine with
this behaviour.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ACPI: introduce kernel parameter acpi_sleep=sci_force_enable 2010-05-12T21:57:11+00:00 Zhang Rui rui.zhang@intel.com 2009-12-30T07:36:42+00:00 0c468b435fa14744fc25ad999d357afcba710954 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> 
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>
ACPI: Add platform-wide _OSC support. 2010-02-09T12:50:44+00:00 Shaohua Li shaohua.li@intel.com 2009-10-29T03:05:05+00:00 1a52addab3426e94879ce3638cb9daf9058d48fd commit 3563ff964fdc36358cef0330936fdac28e65142a upstream. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 3563ff964fdc36358cef0330936fdac28e65142a upstream.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ACPI: Add a generic API for _OSC -v2 2010-02-09T12:50:44+00:00 Shaohua Li shaohua.li@intel.com 2009-10-29T03:04:28+00:00 e62a96c8317c306d81ba5c690bf8f1be10e6cad9 commit 70023de88c58a81a730ab4d13c51a30e537ec76e upstream. v2->v1: .improve debug info as suggedted by Bjorn,Kenji .API is using uuid string as suggested by Alexey Add an API to execute _OSC. A lot of devices can have this method, so add a generic API. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 70023de88c58a81a730ab4d13c51a30e537ec76e upstream.

v2->v1:
.improve debug info as suggedted by Bjorn,Kenji
.API is using uuid string as suggested by Alexey

Add an API to execute _OSC. A lot of devices can have this method, so add a
generic API.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Merge branch 'misc-2.6.32' into release 2009-09-19T06:14:45+00:00 Len Brown len.brown@intel.com 2009-09-19T06:14:45+00:00 d26f0528d588e596955bf296a609afe52eafc099 Conflicts: drivers/pci/dmar.c Signed-off-by: Len Brown <len.brown@intel.com> 
Conflicts:
	drivers/pci/dmar.c

Signed-off-by: Len Brown <len.brown@intel.com>
ACPI: remove unnecessary #ifdef CONFIG_DMI 2009-09-19T05:33:27+00:00 Len Brown len.brown@intel.com 2009-07-07T03:42:10+00:00 e4f55966d02c5dfade2978c2aa05fb202a78a4d1 acpi_osi_setup() does not depend on CONFIG_DMI acpi_dmi_osi_linux()'s definition doesn't depend on CONFIG_DMI either Signed-off-by: Len Brown <len.brown@intel.com> 
acpi_osi_setup() does not depend on CONFIG_DMI
acpi_dmi_osi_linux()'s definition doesn't depend on CONFIG_DMI either

Signed-off-by: Len Brown <len.brown@intel.com>
ACPI: linux/acpi.h should not include linux/dmi.h 2009-09-19T05:33:27+00:00 Len Brown len.brown@intel.com 2009-07-07T03:40:19+00:00 eb27cae8adaa658a0bf31631baa1ce29d8183759 users of acpi.h that need dmi.h should include it directly. Signed-off-by: Len Brown <len.brown@intel.com> 
users of acpi.h that need dmi.h should include it directly.

Signed-off-by: Len Brown <len.brown@intel.com>
ACPI: Handle CONFIG_ACPI=n better from linux/acpi.h 2009-08-28T23:57:29+00:00 Feng Tang feng.tang@intel.com 2009-07-28T09:41:53+00:00 e55a5999ffcf72dc4d43d73618957964cb87065a linux/acpi.h is the top level header for interfacing with the ACPI sub-system, so acpi_disabled should be up there instead of down in asm/acpi.h -- particularly since asm/acpi.h doesn't exist for all architectures. Same story for acpi_table_parse(), which is a top-level API to Linux/ACPI. This is necessary for building some code that used to always depend on CONFIG_ACPI=y, but will soon also need to build with CONFIG_ACPI=n. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> 
linux/acpi.h is the top level header for interfacing
with the ACPI sub-system, so acpi_disabled should be
up there instead of down in asm/acpi.h -- particularly
since asm/acpi.h doesn't exist for all architectures.

Same story for acpi_table_parse(), which is a top-level
API to Linux/ACPI.

This is necessary for building some code that
used to always depend on CONFIG_ACPI=y, but will soon
also need to build with CONFIG_ACPI=n.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24T05:19:50+00:00 Len Brown len.brown@intel.com 2009-06-24T05:19:50+00:00 fbe8cddd2d85979d273d7937a2b8a47498694d91 






ACPI: move declaration acpi_early_init() to acpi.h
2009-06-13T00:50:38+00:00

Len Brown
len.brown@intel.com

2009-06-13T00:42:08+00:00

4a7a16dc061e4c57bf288150f51bd4c2ace33723

Signed-off-by: Len Brown <len.brown@intel.com>





Signed-off-by: Len Brown <len.brown@intel.com>