This patch is not upstream. Since 2.6.32, there is an interface in
/sys for handling the force_release events from userspace, so such
quirk patches are no longer accepted upstream now. But this patch is
valid for version 2.6.31 downwards.

OriginalAuthor:
    Moiseev Vladimir <cdb@linkycat.com>
    Alexander Huhlaev <sancheolz@gmail.com>

BugLink: http://bugs.launchpad.net/bugs/253874

Signed-off-by: Keng-Yu Lin <keng-yu.lin@canonical.com>
Cc: Moiseev Vladimir <cdb@linkycat.com>
Cc: Alexander Huhlaev <sancheolz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

commit 5f5eeff4c93256ee93435a3bf08cf18c45e9a994 upstream.

Apparently some of Toshiba Protege M300 identify themselves as
"Portable PC" in DMI so we need to add that to the DMI table as
well. We need DMI data so we can automatically lower Synaptics
reporting rate from 80 to 40 pps to avoid over-taxing their
keyboard controllers.

Tested-by: Rod Davison <roddavison@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: atkbd - add Compaq Presario R4000-series repeat quirk
  Input: i8042 - add Acer Aspire 5536 to the nomux list

Compaq Presario R4000-series laptops are not sending a "volume up button
release" and "volume down button release" signal in the PS/2 protocol for
atkbd. The URL below has some of confirmed reports:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/385477

Signed-off-by: Dave Andrews <jetdog330@hotmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

When KBC is in active multiplexing mode, disabling and re-enabling the
touchpad with the special key leaves the touchpad dead. Since the laptop
does not have any external PS/2 ports disabling MUX mode should be safe.

Reported-by: Eugeniy Meshcheryakov <eugen@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: ucb1400_ts - enable interrupt unconditionally
  Input: ucb1400_ts - enable ADC Filter
  Input: wacom - don't use on-stack memory for report buffers
  Input: iforce - support new revision of ACT LABS Force RS
  Input: joydev - decouple axis and button map ioctls from input constants

Sometimes, when using the touchscreen, it stops working till next restart
and the following message is printed:

	ucb1400: unexpected IE_STATUS = 0x0

The following patch retriggers the touchscreen interrupt unconditionally.
This prevents hanging of the touchscreen in case of bogus interrupt
occurence.

Signed-off-by: Pavel Revak <palo@bielyvlk.sk>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

This patch enables ADC filtering on UCB1400 codec by default. The
benefit from this change is mostly on some Colibri boards where
the ADCSYNC pin of the UCB1400 codec isn't connected causing the
touchscreen to jitter very badly. This change has no visible
effect on boards where the ADCSYNC pin is connected.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Palo Revak <palo@bielyvlk.sk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

Tested-by: Martin Capitanio <martin@capitanio.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

Reported-by: cemede@gmail.com
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>