Commit Graph

1115 Commits

Author SHA1 Message Date
Dmitry Torokhov
25f8c834e2 Input: synaptics - enable RMI mode for HP Spectre X360
The 2016 kabylake HP Spectre X360 (model number 13-w013dx) works much better
with psmouse.synaptics_intertouch=1 kernel parameter, so let's enable RMI4
mode automatically.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204115
Reported-by: Nate Graham <pointedstick@zoho.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-25 11:24:06 +03:00
Dmitry Torokhov
c2433827c1 Input: cyapa - switch to using devm_device_add_group()
Instead of installing custom devm cleanup action to remove attribute
groups on failure, let's use the dedicated devm API.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-24 12:59:01 +03:00
Dmitry Torokhov
2e75cfaa32 Input: elan_i2c - switch to using devm_add_action_or_reset()
Instead of manually disabling regulators when devm_add_action() fails we can
use devm_add_action_or_reset() which does it for us.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-24 12:58:52 +03:00
Dmitry Torokhov
9609b904c7 Input: elan_i2c - switch to using devm_device_add_groups()
Instead of installing custom devm cleanup action to remove attribute
groups on failure, let's use the dedicated devm API.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-24 12:58:52 +03:00
Dmitry Torokhov
f3b5720cab Input: elantech - annotate fall-through case in elantech_use_host_notify()
This avoids a warning when building with -Wimplicit-fallthrough.

Fixes: 883a2a80f7 ("Input: elantech - enable SMBus on new (2018+) systems")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-24 12:43:51 +03:00
Kai-Heng Feng
883a2a80f7 Input: elantech - enable SMBus on new (2018+) systems
There are some new HP laptops with Elantech touchpad that don't support
multitouch.

Currently we use ETP_NEW_IC_SMBUS_HOST_NOTIFY() to check if SMBus is supported,
but in addition to firmware version, the bus type also informs us whether the IC
can support SMBus. To avoid breaking old ICs, we will only enable SMbus support
based the bus type on systems manufactured after 2018.

Lastly, let's consolidate all checks into elantech_use_host_notify() and use it
to determine whether to use PS/2 or SMBus.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-23 16:49:22 +03:00
Dmitry Torokhov
c39f2d9db0 Merge branch 'next' into for-linus
Prepare second round of input updates for 5.3 merge window.
2019-07-20 07:07:56 +03:00
Hui Wang
771a081e44 Input: alps - fix a mismatch between a condition check and its comment
In the function alps_is_cs19_trackpoint(), we check if the param[1] is
in the 0x20~0x2f range, but the code we wrote for this checking is not
correct:
(param[1] & 0x20) does not mean param[1] is in the range of 0x20~0x2f,
it also means the param[1] is in the range of 0x30~0x3f, 0x60~0x6f...

Now fix it with a new condition checking ((param[1] & 0xf0) == 0x20).

Fixes: 7e4935ccc3 ("Input: alps - don't handle ALPS cs19 trackpoint-only device")
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-19 12:40:35 +03:00
YueHaibing
49e6979e7e Input: psmouse - fix build error of multiple definition
trackpoint_detect() should be static inline while
CONFIG_MOUSE_PS2_TRACKPOINT is not set, otherwise, we build fails:

drivers/input/mouse/alps.o: In function `trackpoint_detect':
alps.c:(.text+0x8e00): multiple definition of `trackpoint_detect'
drivers/input/mouse/psmouse-base.o:psmouse-base.c:(.text+0x1b50): first defined here

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 55e3d9224b ("Input: psmouse - allow disabing certain protocol extensions")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-19 11:58:50 +03:00
Hui Wang
7e4935ccc3 Input: alps - don't handle ALPS cs19 trackpoint-only device
On a latest Lenovo laptop, the trackpoint and 3 buttons below it
don't work at all, when we move the trackpoint or press those 3
buttons, the kernel will print out:
"Rejected trackstick packet from non DualPoint device"

This device is identified as an alps touchpad but the packet has
trackpoint format, so the alps.c drops the packet and prints out
the message above.

According to XiaoXiao's explanation, this device is named cs19 and
is trackpoint-only device, its firmware is only for trackpoint, it
is independent of touchpad and is a device completely different from
DualPoint ones.

To drive this device with mininal changes to the existing driver, we
just let the alps driver not handle this device, then the trackpoint.c
will be the driver of this device if the trackpoint driver is enabled.
(if not, this device will fallback to a bare PS/2 device)

With the trackpoint.c, this trackpoint and 3 buttons all work well,
they have all features that the trackpoint should have, like
scrolling-screen, drag-and-drop and frame-selection.

Signed-off-by: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-15 10:19:08 -07:00
Dmitry Torokhov
ecb41832bd Linux 5.2
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Merge tag 'v5.2' into next

Sync up with mainline to resolve conflicts in iforce driver.
2019-07-15 09:42:32 -07:00
Joe Perches
d38b6cf50a Input: synaptics - fix misuse of strlcpy
Probable cut&paste typo - use the correct field size.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-15 09:40:53 -07:00
Nick Black
1976d7d200 Input: synaptics - whitelist Lenovo T580 SMBus intertouch
Adds the Lenovo T580 to the SMBus intertouch list for Synaptics
touchpads. I've tested with this for a week now, and it seems a great
improvement. It's also nice to have the complaint gone from dmesg.

Signed-off-by: Nick Black <dankamongmen@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-11 23:56:01 -07:00
Dmitry Torokhov
597473720f Merge branch 'next' into for-linus
Prepare input updates for 5.3 merge window.
2019-07-10 23:24:10 -07:00
Cole Rogers
abbe3acd7d Input: synaptics - enable SMBUS on T480 thinkpad trackpad
Thinkpad t480 laptops had some touchpad features disabled, resulting in the
loss of pinch to activities in GNOME, on wayland, and other touch gestures
being slower. This patch adds the touchpad of the t480 to the smbus_pnp_ids
whitelist to enable the extra features. In my testing this does not break
suspend (on fedora, with wayland, and GNOME, using the rc-6 kernel), while
also fixing the feature on a T480.

Signed-off-by: Cole Rogers <colerogers@disroot.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-01 01:22:21 -07:00
Jeffrey Hugo
0828c10013 Input: elan_i2c - export the device id whitelist
Elan_i2c and hid-quirks work in conjunction to decide which devices each
driver will handle.  Elan_i2c has a whitelist of devices that should be
consumed by hid-quirks so that there is one master list of devices to
handoff between the drivers.  Put the ids in a header file so that
hid-quirks can consume it instead of duplicating the list.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-06-30 00:18:13 -07:00
Linus Torvalds
c884d8ac7f SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6
 
 Here is what I am guessing is going to be the last "big" SPDX update for
 5.2.  It contains all of the remaining GPLv2 and GPLv2+ updates that
 were "easy" to determine by pattern matching.  The ones after this are
 going to be a bit more difficult and the people on the spdx list will be
 discussing them on a case-by-case basis now.
 
 Another 5000+ files are fixed up, so our overall totals are:
 	Files checked:            64545
 	Files with SPDX:          45529
 
 Compared to the 5.1 kernel which was:
 	Files checked:            63848
 	Files with SPDX:          22576
 This is a huge improvement.
 
 Also, we deleted another 20000 lines of boilerplate license crud, always
 nice to see in a diffstat.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull still more SPDX updates from Greg KH:
 "Another round of SPDX updates for 5.2-rc6

  Here is what I am guessing is going to be the last "big" SPDX update
  for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
  that were "easy" to determine by pattern matching. The ones after this
  are going to be a bit more difficult and the people on the spdx list
  will be discussing them on a case-by-case basis now.

  Another 5000+ files are fixed up, so our overall totals are:
	Files checked:            64545
	Files with SPDX:          45529

  Compared to the 5.1 kernel which was:
	Files checked:            63848
	Files with SPDX:          22576

  This is a huge improvement.

  Also, we deleted another 20000 lines of boilerplate license crud,
  always nice to see in a diffstat"

* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
  ...
2019-06-21 09:58:42 -07:00
Linus Torvalds
4b6920ba26 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Just a few small fixups and switching a couple of Thinkpads to SMBus
  for touchpads as PS/2 emulation is not working well"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics - enable SMBus on ThinkPad E480 and E580
  Input: imx_keypad - make sure keyboard can always wake up system
  Input: iqs5xx - get axis info before calling input_mt_init_slots()
  Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
  Input: silead - add MSSL0017 to acpi_device_id
  Input: elantech - enable middle button support on 2 ThinkPads
  Input: elan_i2c - increment wakeup count if wake source
2019-06-19 11:26:09 -07:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Alexander Mikhaylenko
9843f3e08e Input: synaptics - enable SMBus on ThinkPad E480 and E580
They are capable of using intertouch and it works well with
psmouse.synaptics_intertouch=1, so add them to the list.

Without it, scrolling and gestures are jumpy, three-finger pinch gesture
doesn't work and three- or four-finger swipes sometimes get stuck.

Signed-off-by: Alexander Mikhaylenko <exalm7659@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-06-12 15:02:16 -07:00
Thomas Gleixner
1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Benjamin Tissoires
66f4c7765a Input: elantech - remove P52 and P72 from SMBus blacklist
Both now works correctly over SMBus. Let's use this driver so we can
update all five fingers every 8ms.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:47 -07:00
Benjamin Tissoires
140a79523e Input: elan_i2c - handle physical middle button
Some models have a middle button, we should export it as well.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:46 -07:00
Benjamin Tissoires
3abcc5329a Input: elantech/SMBus - export all capabilities from the PS/2 node
The recent touchpads might not have all the information regarding the
characteristics through the I2C port.
On some Lenovo t480s, this results in the touchpad not being detected
as a clickpad, and on the Lenovo P52, this results in a failure while
fetching the resolution through I2C.

We need to imitate the Windows behavior: fetch the data under PS/2, and
limit the querries under I2C.

This patch prepares this by exporting the info from PS/2.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:45 -07:00
Benjamin Tissoires
e3a9a12906 Input: elan_i2c - do not query the info if they are provided
See the previous patch for a long explanation.

TL;DR: the P52 and the t480s from Lenovo can't rely on I2C to fetch
the information, so we need it from PS/2.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:44 -07:00
Benjamin Tissoires
fd1cf11f71 Input: elantech - detect middle button based on firmware version
Looks like the new generation of Lenovo machine also need to
be added to the PnPID whitelist. This is definitively not going
to scale, as there is nothing that tells us currently if a
touchpad supports a true physical middle button.

Consider that all new touchpads that are not clickpads
(so matching ETP_NEW_IC_SMBUS_HOST_NOTIFY) are handling 3 physical
buttons.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:41 -07:00
Benjamin Tissoires
88463497dd Input: elantech - add helper function elantech_is_buttonpad()
We check for this bit all over the code, better have it defined once
for all.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:40 -07:00
Benjamin Tissoires
37548659bb Input: elantech - query the min/max information beforehand too
For the latest generation of Elantech touchpads, we need to forward
the min/max information from PS/2 to SMBus. Prepare this work
by fetching the information before creating the SMBus companion
device.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-27 18:50:39 -07:00
Thomas Gleixner
74ba9207e1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  675 mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:36:45 +02:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Thomas Gleixner
09c434b8a0 treewide: Add SPDX license identifier for more missed files
Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have MODULE_LICENCE("GPL*") inside which was used in the initial
   scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:45 +02:00
Aaron Ma
aa440de305 Input: elantech - enable middle button support on 2 ThinkPads
Adding 2 new touchpad PNPIDs to enable middle button support.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-20 22:46:15 -07:00
Ravi Chandra Sadineni
145b11d1ba Input: elan_i2c - increment wakeup count if wake source
Notify the PM core that this device is the wake source. This helps
userspace daemon tracking the wake sources to identify the origin of the
wake.

Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-05-15 16:25:12 -07:00
Dmitry Torokhov
14e0c7317e Merge branch 'next' into for-linus
Prepare input updates for 5.2 merge window.
2019-05-10 11:40:35 -07:00
Dmitry Torokhov
aaca981e45 Input: i8042 - signal wakeup from atkbd/psmouse
Instead of signalling wakeup directly from i8042, let psmouse and atkbd
drivers execute basic protocol handling and only then signal wakeup
condition. This solves the issue where we increment wakeup counter
simply because we are getting responses from keyboard/mouse to the
commands we ourselves send to them as part of suspend transition.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-04-04 11:51:26 -07:00
KT Liao
738c06d0e4 Input: elan_i2c - add hardware ID for multiple Lenovo laptops
There are many Lenovo laptops which need elan_i2c support, this patch adds
relevant IDs to the Elan driver so that touchpads are recognized.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-03-26 17:34:06 -07:00
Vincent Batts
e154ab6932 Input: elan_i2c - add id for touchpad found in Lenovo s21e-20
Lenovo s21e-20 uses ELAN0601 in its ACPI tables for the Elan touchpad.

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-03-09 15:57:17 -08:00
Dmitry Torokhov
65e91e2845 Merge branch 'next' into for-linus
Prepare input updates for 5.1 merge window.
2019-03-03 23:14:44 -08:00
Sven Van Asbroeck
43bcd820bd Input: synaptics_i2c - remove redundant spinlock
Remove a leftover spinlock.

This was required back when mod_delayed_work() did not exist, and had to
be implemented with a cancel + queue. See commit e7c2f96744
("workqueue: use mod_delayed_work() instead of __cancel + queue")

schedule_delayed_work() and mod_delayed_work() can now be used
concurrently. So the spinlock is no longer needed.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-02-16 22:57:31 -08:00
Mauro Ciancio
7ad222b3ae Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
This adds ELAN0617 to the ACPI table to support Elan touchpad found in
Lenovo V330-15ISK.

Signed-off-by: Mauro Ciancio <mauro@acadeu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-02-16 22:49:46 -08:00
Dmitry Torokhov
f420c54e4b Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G"
This reverts commit 7db54c89f0 as it
breaks Acer Aspire V-371 and other devices. According to Elan:

"Acer Aspire F5-573G is MS Precision touchpad which should use hid
 multitouch driver. ELAN0501 should not be added in elan_i2c."

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202503
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-02-11 14:33:05 -08:00
Matti Kurkela
e8b22d0a32 Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
Like Fujitsu CELSIUS H760, the H780 also has a three-button Elantech
touchpad, but the driver needs to be told so to enable the middle touchpad
button.

The elantech_dmi_force_crc_enabled quirk was not necessary with the H780.

Also document the fw_version and caps values detected for both H760 and
H780 models.

Signed-off-by: Matti Kurkela <Matti.Kurkela@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-02-07 23:52:06 -08:00
Dmitry Torokhov
3eb66e91a2 Linux 4.20
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Merge tag 'v4.20' into for-linus

Sync with mainline to get linux/overflow.h among other things.
2019-01-14 15:33:23 -08:00
Patrick Dreyer
7db54c89f0 Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
This adds ELAN0501 to the ACPI table to support Elan touchpad found in ASUS
Aspire F5-573G.

Signed-off-by: Patrick Dreyer <Patrick.Dreyer@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-28 17:10:15 -08:00
Linus Torvalds
0b51733372 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Switching a few devices with Synaptics over to SMbus and disabling
  SMbus on a couple devices with Elan touchpads as they need more
  plumbing on PS/2 side"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics - enable SMBus for HP EliteBook 840 G4
  Input: elantech - disable elan-i2c for P52 and P72
  Input: synaptics - enable RMI on ThinkPad T560
  Input: omap-keypad - fix idle configuration to not block SoC idle states
2018-12-21 09:09:30 -08:00
Mantas Mikulėnas
7a71712293 Input: synaptics - enable SMBus for HP EliteBook 840 G4
dmesg reports that "Your touchpad (PNP: SYN3052 SYN0100 SYN0002 PNP0f13)
says it can support a different bus."

I've tested the offered psmouse.synaptics_intertouch=1 with 4.18.x and
4.19.x and it seems to work well. No problems seen with suspend/resume.

Also, it appears that RMI/SMBus mode is actually required for 3-4 finger
multitouch gestures to work -- otherwise they are not reported at all.

Information from dmesg in both modes:

  psmouse serio3: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1,
      caps: 0xf00123/0x840300/0x2e800/0x0, board id: 3139, fw id: 2000742

  psmouse serio3: synaptics: Trying to set up SMBus access
  rmi4_smbus 6-002c: registering SMbus-connected sensor
  rmi4_f01 rmi4-00.fn01: found RMI device,
      manufacturer: Synaptics, product: TM3139-001, fw id: 2000742

Signed-off-by: Mantas Mikulėnas <grawity@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-21 01:09:17 -08:00
Benjamin Tissoires
d21ff5d7f8 Input: elantech - disable elan-i2c for P52 and P72
The current implementation of elan_i2c is known to not support those
2 laptops.

A proper fix is to tweak both elantech and elan_i2c to transmit the
correct information from PS/2, which would make a bad candidate for
stable.

So to give us some time for fixing the root of the problem, disable
elan_i2c for the devices we know are not behaving properly.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600
Link: https://bugs.archlinux.org/task/59714
Fixes: df077237cf Input: elantech - detect new ICs and setup Host Notify for them

Cc: stable@vger.kernel.org  # v4.18+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-21 00:57:01 -08:00
Yussuf Khalil
ca5047286c Input: synaptics - enable RMI on ThinkPad T560
Before commit 7fd6d98b89 ("i2c: i801: Allow ACPI AML access I/O
ports not reserved for SMBus"), enabling RMI on the T560 would cause
the touchpad to stop working after resuming from suspend. Now that
this issue is fixed, RMI can be enabled safely and works fine.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Yussuf Khalil <dev@pp3345.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-08 21:51:02 -08:00
Linus Torvalds
adac0753c2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Mostly new IDs for Elan/Synaptics touchpads, plus a few small fixups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: omap-keypad - fix keyboard debounce configuration
  Input: xpad - quirk all PDP Xbox One gamepads
  Input: synaptics - enable SMBus for HP 15-ay000
  Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
  Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
  Input: elan_i2c - add support for ELAN0621 touchpad
  Input: hyper-v - fix wakeup from suspend-to-idle
  Input: atkbd - clean up indentation issue
  Input: st1232 - convert to SPDX identifiers
  Input: migor_ts - convert to SPDX identifiers
  Input: dt-bindings - fix a typo in file input-reset.txt
  Input: cros_ec_keyb - fix button/switch capability reports
  Input: elan_i2c - add ELAN0620 to the ACPI table
  Input: matrix_keypad - check for errors from of_get_named_gpio()
2018-12-04 08:47:04 -08:00
Teika Kazura
5a6dab15f7 Input: synaptics - enable SMBus for HP 15-ay000
SMBus works fine for the touchpad with id SYN3221, used in the HP 15-ay000
series,

This device has been reported in these messages in the "linux-input"
mailing list:
* https://marc.info/?l=linux-input&m=152016683003369&w=2
* https://www.spinics.net/lists/linux-input/msg52525.html

Reported-by: Nitesh Debnath <niteshkd1999@gmail.com>
Reported-by: Teika Kazura <teika@gmx.com>
Signed-off-by: Teika Kazura <teika@gmx.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-03 11:37:17 -08:00
Lyude Paul
9df39bedbf Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
Noticed the other day the trackpoint felt different on my P50, then
realized it was because rmi4 wasn't loading for this machine
automatically. Suspend/resume, hibernate, and everything else seem to
work perfectly fine on here.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-03 11:37:17 -08:00
Noah Westervelt
ad33429cd0 Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Add ELAN061E to the ACPI table to support Elan touchpad found in Lenovo
IdeaPad 330-15ARR.

Signed-off-by: Noah Westervelt <nwestervelt@outlook.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-03 11:37:16 -08:00
Adam Wong
bf87ade0dd Input: elan_i2c - add support for ELAN0621 touchpad
Added the ability to detect the ELAN0621 touchpad found in some Lenovo
laptops.

Signed-off-by: Adam Wong <adam@adamwong.me>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-12-03 11:37:15 -08:00
Patrick Gaskin
3ed64da3b7 Input: elan_i2c - add ELAN0620 to the ACPI table
Add ELAN0620 to the ACPI table to support the elan touchpad in
the Lenovo IdeaPad 130-15IKB.

Signed-off-by: Patrick Gaskin <patrick@pgaskin.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-11-12 11:52:03 -08:00
Linus Torvalds
ed3f4e2398 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Just random driver fixups, nothing exiting"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics - avoid using uninitialized variable when probing
  Input: xen-kbdfront - mark expected switch fall-through
  Input: atmel_mxt_ts - mark expected switch fall-through
  Input: cyapa - mark expected switch fall-throughs
  Input: wm97xx-ts - fix exit path
  Input: of_touchscreen - add support for touchscreen-min-x|y
  Input: Fix DIR-685 touchkeys MAINTAINERS entry
  Input: elants_i2c - use DMA safe i2c when possible
  Input: silead - try firmware reload after unsuccessful resume
  Input: st1232 - set INPUT_PROP_DIRECT property
  Input: xilinx_ps2 - convert to using %pOFn instead of device_node.name
  Input: atmel_mxt_ts - fix multiple <linux/property.h> includes
  Input: sun4i-lradc - convert to using %pOFn instead of device_node.name
  Input: pwm-vibrator - correct pwms in DT binding example
2018-10-27 10:20:39 -07:00
Dmitry Torokhov
cacd9759ee Merge branch 'next' into for-linus
Prepare input updates for 4.20 merge window.
2018-10-22 12:04:33 -07:00
Greg Kroah-Hartman
d4ec49d332 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Dmitry writes:
  "Input updates for 4.19-rc8

   Just an addition to elan touchpad driver ACPI table."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
2018-10-20 08:42:56 +02:00
Dmitry Torokhov
f39f868888 Input: synaptics - avoid using uninitialized variable when probing
synaptics_detect() does not check whether sending commands to the
device succeeds and instead relies on getting unique data from the
device. Let's make sure we seed entire buffer with zeroes to make sure
we will not use garbage on stack that just happen to be 0x47.

Reported-by: syzbot+13cb3b01d0784e4ffc3f@syzkaller.appspotmail.com
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-10-19 10:40:12 -07:00
Mikhail Nikiforov
13c1c5e4d7 Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
Add ELAN061C to the ACPI table to support Elan touchpad found in Lenovo
IdeaPad 330-15IGM.

Signed-off-by: Mikhail Nikiforov <jackxviichaos@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-10-15 11:24:45 -07:00
Gustavo A. R. Silva
15ee2992c0 Input: cyapa - mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in this particular case, I replaced the "Fallthrough state"
commern with a proper "Fall through", which is what GCC is expecting to
find.

Addresses-Coverity-ID: 114758 ("Missing break in switch")
Addresses-Coverity-ID: 114759 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-10-15 11:24:10 -07:00
Greg Kroah-Hartman
e704966c45 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Dmitry writes:
  "Input updates for v4.19-rc5

   Just a few driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: uinput - allow for max == min during input_absinfo validation
  Input: elantech - enable middle button of touchpad on ThinkPad P72
  Input: atakbd - fix Atari CapsLock behaviour
  Input: atakbd - fix Atari keymap
  Input: egalax_ts - add system wakeup support
  Input: gpio-keys - fix a documentation index issue
2018-09-28 18:04:50 -07:00
Aaron Ma
91a9750732 Input: elantech - enable middle button of touchpad on ThinkPad P72
Adding 2 new touchpad IDs to support middle button support.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-09-18 15:28:07 -07:00
Linus Torvalds
08b5fa8199 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for Rohm BU21029 touch controller

 - new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free

 - updates to Atmel, eeti. pxrc and iforce drivers

 - assorted driver cleanups and fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  MAINTAINERS: Add PhoenixRC Flight Controller Adapter
  Input: do not use WARN() in input_alloc_absinfo()
  Input: mark expected switch fall-throughs
  Input: raydium_i2c_ts - use true and false for boolean values
  Input: evdev - switch to bitmap API
  Input: gpio-keys - switch to bitmap_zalloc()
  Input: elan_i2c_smbus - cast sizeof to int for comparison
  bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
  md: Avoid namespace collision with bitmap API
  dm: Avoid namespace collision with bitmap API
  Input: pm8941-pwrkey - add resin entry
  Input: pm8941-pwrkey - abstract register offsets and event code
  Input: iforce - reorganize joystick configuration lists
  Input: atmel_mxt_ts - move completion to after config crc is updated
  Input: atmel_mxt_ts - don't report zero pressure from T9
  Input: atmel_mxt_ts - zero terminate config firmware file
  Input: atmel_mxt_ts - refactor config update code to add context struct
  Input: atmel_mxt_ts - config CRC may start at T71
  Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
  Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
  ...
2018-08-18 16:48:07 -07:00
Dmitry Torokhov
13fe7056be Merge branch 'next' into for-linus
Prepare input updates for 4.19 merge window.
2018-08-16 11:10:56 -07:00
Gustavo A. R. Silva
17a4ed5545 Input: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Warning level 2 was used: -Wimplicit-fallthrough=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-08-08 11:23:27 -07:00
Julia Lawall
ce1d6f22fa Input: elan_i2c_smbus - cast sizeof to int for comparison
Comparing an int to a size, which is unsigned, causes the int to become
unsigned, giving the wrong result.  i2c_smbus_read_block_data can return the
result of i2c_smbus_xfer, whih can return a negative error code.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
int x;
expression e,e1;
identifier f;
@@

*x = f(...);
... when != x = e1
    when != if (x < 0 || ...) { ... return ...; }
*x < sizeof(e)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-08-01 16:05:55 -07:00
Jia-Ju Bai
7a082a24cf Input: appletouch - replace GFP_ATOMIC with GFP_KERNEL
atp_open(), atp_recover() and atp_resume() are never called in atomic
context. They call usb_submit_urb() with GFP_ATOMIC, which is not
necessary. GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-27 11:59:09 -07:00
Linus Torvalds
49b1622bdb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - a couple of new device IDs added to Elan i2c touchpad controller
   driver

 - another entry in i8042 reset quirk list

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - add Lenovo LaVie Z to the i8042 reset list
  Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
  MAINTAINERS: Add file patterns for serio device tree bindings
  Input: elan_i2c - add ACPI ID for lenovo ideapad 330
2018-07-27 09:53:45 -07:00
Dmitry Torokhov
179909ecaf Input: stop telling users to snail-mail Vojtech
I do not think Vojtech wants snail mail these days (and he mentioned that
nobody has ever sent him snail mail), and the address is not even valid
anymore, so let's remove snail-mail instructions from the sources.

Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-26 17:04:37 -07:00
KT Liao
6f88a6439d Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
Add ELAN0622 to ACPI mapping table to support Elan touchpad found in
Ideapad 330-15AST.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Reported-by: Anant Shende <anantshende@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-16 12:14:48 +00:00
Donald Shanty III
938f45008d Input: elan_i2c - add ACPI ID for lenovo ideapad 330
This allows Elan driver to bind to the touchpad found in Lenovo Ideapad 330
series laptops.

Signed-off-by: Donald Shanty III <dshanty@protonmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-04 15:58:47 +00:00
Linus Torvalds
c92067ae06 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - the main change is a fix for my brain-dead patch to PS/2 button
   reporting for some protocols that made it in 4.17

 - there is a new driver for Spreadtum vibrator that I intended to send
   during merge window but ended up not sending the 2nd pull request.
   Given that this is a brand new driver we should not see regressions
   here

 - a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad
   P52

 - addition of few more ACPI IDs for Silead and Elan drivers

 - RMI4 is switched to using IRQ domain code instead of rolling its own
   implementation

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: psmouse - fix button reporting for basic protocols
  Input: xpad - fix GPD Win 2 controller name
  Input: elan_i2c_smbus - fix more potential stack buffer overflows
  Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
  Input: elantech - fix V4 report decoding for module with middle key
  Input: elantech - enable middle button of touchpads on ThinkPad P52
  Input: do not assign new tracking ID when changing tool type
  Input: make input_report_slot_state() return boolean
  Input: synaptics-rmi4 - fix axis-swap behavior
  Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
  Input: synaptics-rmi4 - convert irq distribution to irq_domain
  Input: silead - add MSSL0002 ACPI HID
  Input: goldfish_events - fix checkpatch warnings
  Input: add Spreadtrum vibrator driver
2018-06-27 09:16:53 -07:00
Dmitry Torokhov
03ae3a9caf Input: psmouse - fix button reporting for basic protocols
The commit ba667650c5 ("Input: psmouse - clean up code") was pretty
brain-dead and broke extra buttons reporting for variety of PS/2 mice:
Genius, Thinkmouse and Intellimouse Explorer. We need to actually inspect
the data coming from the device when reporting events.

Fixes: ba667650c5 ("Input: psmouse - clean up code")
Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-26 16:21:45 -07:00
Ben Hutchings
50fc7b6195 Input: elan_i2c_smbus - fix more potential stack buffer overflows
Commit 40f7090bb1 ("Input: elan_i2c_smbus - fix corrupted stack")
fixed most of the functions using i2c_smbus_read_block_data() to
allocate a buffer with the maximum block size.  However three
functions were left unchanged:

* In elan_smbus_initialize(), increase the buffer size in the same
  way.
* In elan_smbus_calibrate_result(), the buffer is provided by the
  caller (calibrate_store()), so introduce a bounce buffer.  Also
  name the result buffer size.
* In elan_smbus_get_report(), the buffer is provided by the caller
  but happens to be the right length.  Add a compile-time assertion
  to ensure this remains the case.

Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:41 -07:00
Alexandr Savca
8938fc7b8f Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
Add ELAN0618 to the list of supported touchpads; this ID is used in
Lenovo v330 15IKB devices.

Signed-off-by: Alexandr Savca <alexandr.savca@saltedge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:41 -07:00
???
e0ae2519ca Input: elantech - fix V4 report decoding for module with middle key
Some touchpad has middle key and it will be indicated in bit 2 of packet[0].
We need to fix V4 formation's byte mask to prevent error decoding.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:11 -07:00
Aaron Ma
24bb555e6e Input: elantech - enable middle button of touchpads on ThinkPad P52
PNPID is better way to identify the type of touchpads.
Enable middle button support on 2 types of touchpads on Lenovo P52.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:19:56 -07:00
Mauro Carvalho Chehab
5fb94e9ca3 docs: Fix some broken references
As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Dmitry Torokhov
5aff29efbe Merge branch 'ib/4.17-xen-kbdfront-runtime-config' into next
Bring in xen-kbdfront changes.
2018-06-12 16:38:35 -07:00
Johannes Wienke
e6e7e9cd8e Input: elan_i2c - add ELAN0612 (Lenovo v330 14IKB) ACPI ID
Add ELAN0612 to the list of supported touchpads; this ID is used in Lenovo
v330 14IKB devices.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199253
Signed-off-by: Johannes Wienke <languitar@semipol.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:41:49 -07:00
Dmitry Torokhov
c13aca79ff Merge branch 'next' into for-linus
Prepare input updates for 4.18 merge window.
2018-06-04 13:33:12 -07:00
Dmitry Torokhov
754451342f Linux 4.17-rc6
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Merge tag 'v4.17-rc6' into next

Sync up with mainline to bring in Atmel controller changes for Caroline.
2018-05-24 09:30:15 -07:00
Benjamin Tissoires
bf232e460a Input: psmouse-smbus - allow to control psmouse_deactivate
This seems to be Synaptics specific, as some Elan touchpads are not
correctly switching to SMBus if we call deactivate before switching to
SMBus on cold boot and on resume.

Tested with the T480s

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
df077237cf Input: elantech - detect new ICs and setup Host Notify for them
New ICs are using a different scheme for the alternate bus parameter.
Given that they are new and are only using either PS2 only or PS2 + SMBus
Host Notify, we force those new ICs to use the SMBus solution for enhanced
reporting.

This allows the touchpad found on the Lenovo T480s to report 5 fingers
every 8 ms, instead of having a limit of 2 every 8 ms.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
21c48dbde0 Input: elantech - add support for SMBus devices
Many of the Elantech devices are connected through PS/2 and a different
bus (SMBus or plain I2C).

To not break any existing device, we only enable SMBus based
on a module parameter. If some laptops require the quirk to
be set, we will have to rely on a list of PNPIds or MDI matching
to individually expose those hardware over SMBus.
the parameter mentioned above is elantech_smbus from the psmouse
module.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
80212ed743 Input: elantech - query the resolution in query_info
The command ETP_RESOLUTION_QUERY also contains the bus information.
It is better to fetch it once, while we are querying for device
information.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
f078759201 Input: elantech - split device info into a separate structure
In preparation for SMBus device support, move static device
information that we query form the touchpad upon initialization into
separate structure. This will allow us to query the device without
allocating memory first.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:48:49 -07:00
Benjamin Tissoires
559b3df76f Input: elan_i2c - add trackstick report
The Elan touchpads over I2C/SMBus also can handle a trackstick.
Unfortunately, nothing tells us if the device supports trackstick (the
information lies in the PS/2 node), so rely on device properties to
determine whether to enable the trackstick node.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1313939

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:46:36 -07:00
Benjamin Tissoires
40f7090bb1 Input: elan_i2c_smbus - fix corrupted stack
New ICs (like the one on the Lenovo T480s) answer to
ETP_SMBUS_IAP_VERSION_CMD 4 bytes instead of 3. This corrupts the stack
as i2c_smbus_read_block_data() uses the values returned by the i2c
device to know how many data it need to return.

i2c_smbus_read_block_data() can read up to 32 bytes (I2C_SMBUS_BLOCK_MAX)
and there is no safeguard on how many bytes are provided in the return
value. Ensure we always have enough space for any future firmware.
Also 0-initialize the values to prevent any access to uninitialized memory.

Cc: <stable@vger.kernel.org> # v4.4.x, v4.9.x, v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:48:59 -07:00
Benjamin Tissoires
ad8fb554f0 Input: synaptics - add Lenovo 80 series ids to SMBus
This time, Lenovo decided to go with different pieces in its latest
series of Thinkpads.

For those we have been able to test:
- the T480 is using Synaptics with an IBM trackpoint
   -> it behaves properly with or without intertouch, there is no point
      not using RMI4
- the X1 Carbon 6th gen is using Synaptics with an IBM trackpoint
   -> the touchpad doesn't behave properly under PS/2 so we have to
      switch it to RMI4 if we do not want to have disappointed users
- the X280 is using Synaptics with an ALPS trackpoint
   -> the recent fixes in the trackpoint handling fixed it so upstream
      now works fine with or without RMI4, and there is no point not
      using RMI4
- the T480s is using an Elan touchpad, so that's a different story

Cc: <stable@vger.kernel.org> # v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:47:04 -07:00
Aaron Ma
5717a09aea Input: synaptics - add Intertouch support on X1 Carbon 6th and X280
Synaptics devices reported it has Intertouch support,
and it fails via PS/2 as following logs:

psmouse serio2: Failed to reset mouse on synaptics-pt/serio0
psmouse serio2: Failed to enable mouse on synaptics-pt/serio0

Set these new devices to use SMBus to fix this issue, then they report
SMBus version 3 is using, patch:
https://patchwork.kernel.org/patch/9989547/ enabled SMBus ver 3 and
makes synaptics devices work fine on SMBus mode.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:46:42 -07:00
Edvard Holst
15e2cffec3 Input: synaptics - Lenovo Thinkpad X1 Carbon G5 (2017) with Elantech trackpoints should use RMI
Lenovo use two different trackpoints in the fifth generation Thinkpad X1
Carbon. Both are accessible over SMBUS/RMI but the pnpIDs are missing.
This patch is for the Elantech trackpoint specifically which also
reports SMB version 3 so rmi_smbus needs to be updated in order to
handle it.

For the record, I was not the first one to come up with this patch as it
has been floating around the internet for a while now. However, I have
spent significant time with testing and my efforts to find the original
author of the patch have been unsuccessful.

Signed-off-by: Edvard Holst <edvard.holst@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:45:50 -07:00
Dmitry Torokhov
9b2071028f Input: synaptics - Lenovo Carbon X1 Gen5 (2017) devices should use RMI
The touchpad on Lenovo Carbon X1 Gen 5 (2017 - Kabylake) is accessible over
SMBUS/RMI, so let's activate it by default.

Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:44:35 -07:00
Pali Rohár
9c71b2c53b Input: alps - fix reporting pressure of v3 trackstick
According to documentation, all 7 lower bits represents trackpoint pressure.

Fixes: 4621c96604 ("Input: alps - report pressure of v3 and v7 trackstick")
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-04-23 16:38:16 -07:00
Pali Rohár
d91abc21e1 Input: alps - demystify trackstick initialization for v3 and v6 protocols
Remove cite "Not sure what this does, but it is absolutely essential".

Extract initialization of trackstick part when touchpad is in passthrough
mode for v3 and v6 protocols into own function. Initialization for v3 is:
setscale11, setscale11, setscale11, nibble 0x9, nibble 0x4. Initialization
for v6 is: setscale11, setscale11, setscale11, setrate 0xC8, setrate 0x14.
Nibbles 0x9 and 0x4 for v3 protocol correspond to setrate 0xC8 and 0x14,
therefore these sequences are same.

When touchpad is in passthrough mode, then OS communicates with trackstick
and this sequence is some magic vendor PS/2 command to put trackstick into
"extended" mode. After that sequence trackstick starts reporting packets in
some vendor 4 bytes format (first byte is always 0xE8).

Next step after configuring trackstick to be in "extended" mode, is to
configure touchpad for v3 protocol to expect that trackstick reports data
in "extended" mode. For v3 protocol this is done by setting bit 1 in
register 0xC2C8 (offset 0x08 from base address 0xC2C0).

When both touchpad and trackstick are not configured for "extended" mode
then touchpad reports trackstick packets in different format, which is not
supported by psmouse/alps driver (yet).

In Cirque documentation GP-AN- 130823 INTERFACING TO GEN4 OVER I2C (PDF)
available at http://www.cirque.com/gen4-dev-resources is Logical Address
0xC2C8 named as PS2AuxControl and Bit Number 1 as ProcessAuxExtendedData
with description: Auxiliary device data is assumed to be extended data when
set.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-04-23 16:37:54 -07:00
Dmitry Torokhov
57eb13a9e8 Merge branch 'ib-chrome-platform-input-atmel-mx-ts-platform-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform into next
Sync up with chrome-platform to bring in changes to Atmel touch
controller.
2018-04-23 16:07:15 -07:00
Dmitry Torokhov
664b0bae0b Merge branch 'next' into for-linus
Prepare input updates for 4.17 merge window.
2018-04-04 16:11:49 -07:00
Masaki Ota
567b9b549c Input: ALPS - fix TrackStick detection on Thinkpad L570 and Latitude 7370
The primary interface for the touchpad device in Thinkpad L570 is SMBus,
so ALPS overlooked PS2 interface Firmware setting of TrackStick, and
shipped with TrackStick otp bit is disabled.

The address 0xD7 contains device number information, so we can identify
the device by checking this value, but to access it we need to enable
Command mode, and then re-enable the device. Devices shipped in Thinkpad
L570 report either 0x0C or 0x1D as device numbers, if we see them we assume
that the devices are DualPoints.

The same issue exists on Dell Latitude 7370.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196929
Fixes: 646580f793 ("Input: ALPS - fix multi-touch decoding on SS4 plus touchpads")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Jonathan Liu <net147@gmail.com>
Tested-by: Jaak Ristioja <jaak@ristioja.ee>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-03-30 15:30:25 -07:00
Pali Rohár
4621c96604 Input: alps - report pressure of v3 and v7 trackstick
ALPS v3 and v7 packet formats reports trackstick pressure. This information
is already parsed in unused "z" variable.

ALPS SS4 S2 devices already reports trackstick pressure as ABS_PRESSURE
attribute, therefore reports pressure in the same way also for v3 and v7.

This patch also updates parsing v3 pressure information, it is also stored
in 7 bits.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-03-26 17:03:05 -07:00