linux.git/drivers/input, branch v4.13

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2017-09-01T17:43:37+00:00

Pull input fixes from Dmitry Torokhov:
 "Just a couple drivers fixes (Synaptics PS/2, Xpad)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - fix PowerA init quirk for some gamepad models
  Input: synaptics - fix device info appearing different on reconnect

Input: xpad - fix PowerA init quirk for some gamepad models

2017-08-31T18:55:11+00:00

The PowerA gamepad initialization quirk worked with the PowerA
wired gamepad I had around (0x24c6:0x543a), but a user reported [0]
that it didn't work for him, even though our gamepads shared the
same vendor and product IDs.

When I initially implemented the PowerA quirk, I wanted to avoid
actually triggering the rumble action during init. My tests showed
that my gamepad would work correctly even if it received a rumble
of 0 intensity, so that's what I went with.

Unfortunately, this apparently isn't true for all models (perhaps
a firmware difference?). This non-working gamepad seems to require
the real magic rumble packet that the Microsoft driver sends, which
actually vibrates the gamepad. To counteract this effect, I still
send the old zero-rumble PowerA quirk packet which cancels the
rumble effect before the motors can spin up enough to vibrate.

[0]: https://github.com/paroj/xpad/issues/48#issuecomment-313904867

Reported-by: Kyle Beauchamp 
Tested-by: Kyle Beauchamp 
Fixes: 81093c9848a7 ("Input: xpad - support some quirky Xbox One pads")
Cc: stable@vger.kernel.org # v4.12
Signed-off-by: Cameron Gutman 
Signed-off-by: Dmitry Torokhov

Input: synaptics - fix device info appearing different on reconnect

2017-08-28T17:36:46+00:00

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 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2017-08-26T19:48:29+00:00

Pull input fixes from Dmitry Torokhov:

 - a tweak to the IBM Trackpoint driver that helps recognizing
   trackpoints on never Lenovo Carbons

 - a fix to the ALPS driver solving scroll issues on some Dells

 - yet another ACPI ID has been added to Elan I2C toucpad driver

 - quieted diagnostic message in soc_button_array driver

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad
  Input: soc_button_array - silence -ENOENT error on Dell XPS13 9365
  Input: trackpoint - add new trackpoint firmware ID
  Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310

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

2017-08-24T22:53:46+00:00

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 
Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Dmitry Torokhov

Input: soc_button_array - silence -ENOENT error on Dell XPS13 9365

2017-08-20T16:30:23+00:00

The Dell XPS13 9365 has an INT33D2 ACPI node with no GPIOs, causing
the following error in dmesg:

[    7.172275] soc_button_array: probe of INT33D2:00 failed with error -2

This commit silences this, by returning -ENODEV when there are no GPIOs.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=196679
Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: trackpoint - add new trackpoint firmware ID

2017-08-19T00:04:11+00:00

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 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

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

2017-08-19T00:03:57+00:00

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

Signed-off-by: KT Liao 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2017-08-17T20:45:44+00:00

Pull input fixes from Dmitry Torokhov.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
  Input: elan_i2c - add ELAN0608 to the ACPI table
  Input: trackpoint - assume 3 buttons when buttons detection fails

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

2017-08-15T03:22:11+00:00

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 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov