commit c4440b8a457779adeec42c5e181cb4016f19ce0f upstream.

The keyboard drops keypresses early during boot unless both the nomux
and reset quirks are set. Add DMI table entries for this.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1806085
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200907095656.13155-1-hdegoede@redhat.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 6c77545af100a72bf5e28142b510ba042a17648d upstream.

Add trackpoint variant IDs to allow supported control on Synaptics
trackpoints.

Signed-off-by: Vincent Huang <vincent.huang@tw.synaptics.com>
Link: https://lore.kernel.org/r/20200914120327.2592-1-vincent.huang@tw.synaptics.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[ Upstream commit 4aec14de3a15cf9789a0e19c847f164776f49473 ]

When I cat parameter 'proto' by sysfs, it displays as follows. It's
better to add a newline for easy reading.

root@syzkaller:~# cat /sys/module/psmouse/parameters/proto
autoroot@syzkaller:~#

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20200720073846.120724-1-wangxiongfeng2@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

[ Upstream commit ea38f06e0291986eb93beb6d61fd413607a30ca4 ]

Currently when the call to fsp_reg_write fails -EIO is not being returned
because the count is being returned instead of the return value in retval.
Fix this by returning the value in retval instead of count.

Addresses-Coverity: ("Unused value")
Fixes: fc69f4a6af49 ("Input: add new driver for Sentelic Finger Sensing Pad")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200603141218.131663-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Pull input fixes from Dmitry Torokhov:
 "A few quirks for the Elan touchpad driver, another Thinkpad is being
  switched over from PS/2 to native RMI4 interface, and we gave a brand
  new SW_MACHINE_COVER switch definition"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - add more hardware ID for Lenovo laptops
  Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list
  Revert "Input: elants_i2c - report resolution information for touch major"
  Input: elan_i2c - only increment wakeup count on touch
  Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen
  ARM: dts: n900: remove mmc1 card detect gpio
  Input: add `SW_MACHINE_COVER`

This fixes two finger trackpad scroll on the Lenovo XiaoXin Air 12.
Without nomux, the trackpad behaves as if only one finger is present and
moves the cursor when trying to scroll.

Signed-off-by: David Pedersen <limero1337@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200625133754.291325-1-limero1337@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This reverts commit 061706716384f1633d3d5090b22a99f33f1fcf2f - it turns
out that the resolution of 1 unit per mm was not correct for a number of
touch screens, causing touch sizes to be reported as way too large.
See https://crbug.com/1085648

Reported-by: Harry Cutts <hcutts@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This moves the wakeup increment for elan devices to the touch report.
This prevents the drivers from incorrectly reporting a wakeup when the
resume callback resets then device, which causes an interrupt to
occur.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Link: https://lore.kernel.org/r/20200706235046.1984283-1-dbasehore@chromium.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Tested on my own laptop, touchpad feels slightly more responsive with
this on, though it might just be placebo.

Signed-off-by: Ilya Katsnelson <me@0upti.me>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20200703143457.132373-1-me@0upti.me
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Better describe what these functions do.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>