linux-stable.git/drivers/input/touchscreen, branch linux-3.14.y

Input: wacom_w8001 - w8001_MAX_LENGTH should be 13

2016-08-10T08:21:02+00:00

commit 12afb34400eb2b301f06b2aa3535497d14faee59 upstream.

Somehow the patch that added two-finger touch support forgot to update
W8001_MAX_LENGTH from 11 to 13.

Signed-off-by: Ping Cheng 
Reviewed-by: Peter Hutterer 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: ads7846 - correct the value got from SPI

2016-05-11T09:21:03+00:00

commit 879f2fea8a5a748bcbf98d2cdce9139c045505d3 upstream.

According to the touch controller spec, SPI return a 16 bit value, only 12
bits are valid, they are bit[14-3].

The value of MISO and MOSI can be configured when SPI is in idle mode.
Currently this touch driver assumes the SPI bus sets the MOSI and MISO in
low level when SPI bus is in idle mode. So the bit[15] of the value got
from SPI bus is always 0. But when SPI bus congfigures the MOSI and MISO in
high level during the SPI idle mode, the bit[15] of the value get from SPI
is always 1. If bit[15] is not masked, we may get the wrong value.

Mask the invalid bit to make sure the correct value gets returned.
Regardless of the SPI bus idle configuration.

Signed-off-by: Andrey Gelman 
Signed-off-by: Haibo Chen 
Signed-off-by: Igor Grinberg 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: zforce_ts - fix dual touch recognition

2016-05-11T09:21:00+00:00

commit 6984ab1ab35f422292b7781c65284038bcc0f6a6 upstream.

A wrong decoding of the touch coordinate message causes a wrong touch
ID. Touch ID for dual touch must be 0 or 1.

According to the actual Neonode nine byte touch coordinate coding,
the state is transported in the lower nibble and the touch ID in
the higher nibble of payload byte five.

Signed-off-by: Knut Wohlrab 
Signed-off-by: Oleksij Rempel 
Signed-off-by: Dirk Behme 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: usbtouchscreen - avoid unresponsive TSC-30 touch screen

2015-08-10T19:21:05+00:00

commit 968491709e5b1aaf429428814fff3d932fa90b60 upstream.

This patch fixes a problem in the usbtouchscreen driver for DMC TSC-30
touch screen.  Due to a missing delay between the RESET and SET_RATE
commands, the touch screen may become unresponsive during system startup or
driver loading.

According to the DMC documentation, a delay is needed after the RESET
command to allow the chip to complete its internal initialization. As this
delay is not guaranteed, we had a system where the touch screen
occasionally did not send any touch data. There was no other indication of
the problem.

The patch fixes the problem by adding a 150ms delay between the RESET and
SET_RATE commands.

Suggested-by: Jakob Mustafa 
Signed-off-by: Bernhard Bender 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

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

2014-01-25T01:17:30+00:00

Pull input subsystem updates from Dmitry Torokhov:
 "Just a swath of driver fixes and cleanups, no new drivers this time
  (although ALPS now supports one of the newer protocols, more to come)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  Input: wacom - add support for DTU-1031
  Input: wacom - fix wacom->shared guards for dual input devices
  Input: edt_ft5x06 - use devm_* functions where appropriate
  Input: hyperv-keyboard - pass through 0xE1 prefix
  Input: logips2pp - fix spelling s/reciver/receiver/
  Input: delete non-required instances of include 
  Input: twl4030-keypad - convert to using managed resources
  Input: twl6040-vibra - remove unneeded check for CONFIG_OF
  Input: twl4030-keypad - add device tree support
  Input: twl6040-vibra - add missing of_node_put
  Input: twl4030-vibra - add missing of_node_put
  Input: i8042 - cleanup SERIO_I8042 dependencies
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge
  ...

Merge branch 'next' into for-linus

2014-01-23T16:10:44+00:00

First round of input updates for 3.14.

mfd: mc13xxx: Remove useless symbol MFD_MC13783

2014-01-21T08:28:09+00:00

Symbol MFD_MC13783 always selected by MFD_MC13XXX, so no need
to keep additional symbol.

Signed-off-by: Alexander Shiyan 
Signed-off-by: Lee Jones

Merge tag 'ib-iio-input-3.13-1' into for-mfd-next

2014-01-21T08:26:55+00:00

Immutable branch for IIO and Input

Input: edt_ft5x06 - use devm_* functions where appropriate

2014-01-21T04:29:21+00:00

Simplify the error path and remove() function by using devm_*
functions for requesting gpios and irq and allocating the input
device.

Signed-off-by: Lothar Waßmann 
Signed-off-by: Dmitry Torokhov

mfd: ti_am335x_tscadc: Don't read back REG_SE

2014-01-07T08:41:15+00:00

The purpose of reg_se_cache has been defeated. It should avoid the
read-back of the register to avoid the latency and the fact that the
bits are reset to 0 after the individual conversation took place.

The reason why this is required like this to work, is that read-back of
the register removes the bits of the ADC so they do not start another
conversation after the register is re-written from the TSC side for the
update.
To avoid the not required read-back I introduce a "set once" variant which
does not update the cache mask. After the conversation completes, the
bit is removed from the SE register anyway and we don't plan a new
conversation "any time soon". The current set function is renamed to
set_cache to distinguish the two operations.
This is a small preparation for a larger sync-rework.

Signed-off-by: Sebastian Andrzej Siewior 
Acked-by: Dmitry Torokhov 
Acked-by: Jonathan Cameron 
Signed-off-by: Lee Jones