linux-stable.git/drivers/input/mouse, branch linux-4.12.y

Input: trackpoint - assume 3 buttons when buttons detection fails

2017-09-09T15:39:31+00:00

commit 293b915fd9bebf33cdc906516fb28d54649a25ac upstream.

Trackpoint buttons detection fails on ThinkPad 570 and 470 series,
this makes the middle button of the trackpoint to not being recogized.
As I don't believe there is any trackpoint with less than 3 buttons this
patch just assumes three buttons when the extended button information
read fails.

Signed-off-by: Oscar Campos 
Acked-by: Peter Hutterer 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Aaron Ma 
Signed-off-by: Greg Kroah-Hartman

Input: synaptics - fix device info appearing different on reconnect

2017-09-07T06:37:14+00:00

commit 3f9db52dc87b003a1732f3e03f7f5fc8701ef4ad upstream.

User-modified input settings no longer survive a suspend/resume cycle.
Starting with 4.12, the touchpad is reinitialized on every reconnect
because the hardware appears to be different. This can be reproduced
by running the following as root:

    echo -n reconnect >/sys/devices/platform/i8042/serio1/drvctl

A line like the following will show up in dmesg:

    [30378.295794] psmouse serio1: synaptics: hardware appears to be
                   different: id(149271-149271), model(114865-114865),
                   caps(d047b3-d047b1), ext(b40000-b40000).

Note the single bit difference in caps: bit 1 (SYN_CAP_MULTIFINGER).

This happens because we modify our stored copy of the device info
capabilities when we enable advanced gesture mode but this change is
not reflected in the actual hardware capabilities.

It worked in the past because synaptics_query_hardware used to modify
the stored synaptics_device_info struct instead of filling in a new
one, as it does now.

Fix it by no longer faking the SYN_CAP_MULTIFINGER bit when setting
advanced gesture mode. This necessitated a small refactoring.

Fixes: 6c53694fb222 ("Input: synaptics - split device info into a separate structure")
Signed-off-by: Anthony Martin 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad

2017-08-30T08:26:29+00:00

commit 4a646580f793d19717f7e034c8d473b509c27d49 upstream.

Fixed the issue that two finger scroll does not work correctly
on V8 protocol. The cause is that V8 protocol X-coordinate decode
is wrong at SS4 PLUS device. I added SS4 PLUS X decode definition.

Mote notes:
the problem manifests itself by the commit e7348396c6d5 ("Input: ALPS
- fix V8+ protocol handling (73 03 28)"), where a fix for the V8+
protocol was applied.  Although the culprit must have been present
beforehand, the two-finger scroll worked casually even with the
wrongly reported values by some reason.  It got broken by the commit
above just because it changed x_max value, and this made libinput
correctly figuring the MT events.  Since the X coord is reported as
falsely doubled, the events on the right-half side go outside the
boundary, thus they are no longer handled.  This resulted as a broken
two-finger scroll.

One finger event is decoded differently, and it didn't suffer from
this problem.  The problem was only about MT events. --tiwai

Fixes: e7348396c6d5 ("Input: ALPS - fix V8+ protocol handling (73 03 28)")
Signed-off-by: Masaki Ota 
Tested-by: Takashi Iwai 
Tested-by: Paul Donohue 
Signed-off-by: Takashi Iwai 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310

2017-08-30T08:26:29+00:00

commit 1d2226e45040ed4aee95b633cbd64702bf7fc2a1 upstream.

Add ELAN0602 to the list of known ACPI IDs to enable support for ELAN
touchpads found in Lenovo Yoga310.

Signed-off-by: KT Liao 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: trackpoint - add new trackpoint firmware ID

2017-08-30T08:26:29+00:00

commit ec667683c532c93fb41e100e5d61a518971060e2 upstream.

Synaptics add new TP firmware ID: 0x2 and 0x3, for now both lower 2 bits
are indicated as TP. Change the constant to bitwise values.

This makes trackpoint to be recognized on Lenovo Carbon X1 Gen5 instead
of it being identified as "PS/2 Generic Mouse".

Signed-off-by: Aaron Ma 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB

2017-08-25T00:15:01+00:00

commit 76988690402dde2880bfe06ecccf381d48ba8e1c upstream.

Add 2 new IDs (ELAN0609 and ELAN060B) to the list of ACPI IDs that should
be handled by the driver.

Signed-off-by: KT Liao 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: elan_i2c - add ELAN0608 to the ACPI table

2017-08-25T00:15:01+00:00

commit 1874064eed0502bd9bef7be8023757b0c4f26883 upstream.

Similar to commit 722c5ac708b4f ("Input: elan_i2c - add ELAN0605 to the
ACPI table"), ELAN0608 should be handled by elan_i2c.

This touchpad can be found in Lenovo ideapad 320-14IKB.

BugLink: https://bugs.launchpad.net/bugs/1708852

Signed-off-by: Kai-Heng Feng 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled

2017-06-07T17:32:10+00:00

The Lifebook E546 and E557 touchpad were also not functioning and
worked after running:

        echo "1" > /sys/devices/platform/i8042/serio2/crc_enabled

Add them to the list of machines that need this workaround.

Signed-off-by: Ulrik De Bie 
Reviewed-by: Arjan Opmeer 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Merge tag 'v4.12-rc3' into for-linus

2017-06-03T00:49:10+00:00

Merge with mainline to get acpi_dev_present() needed by patches to
axp20x-pek driver.

Input: synaptics - tell users to report when they should be using rmi-smbus

2017-05-30T03:00:26+00:00

Users should really consider switching to rmi-smbus instead of plain PS/2.
Notify them that they should report a missing pnpID in the file.

Signed-off-by: Benjamin Tissoires 
Signed-off-by: Dmitry Torokhov