Commit graph

113 commits

Author SHA1 Message Date
Andi Shyti 78bcac7b2a Input: add support for the STMicroelectronics FingerTip touchscreen
The stmfts (ST-Microelectronics FingerTip S) touchscreen device is a
capacitive multi-touch controller mainly for mobile use.  It's connected
through i2c bus at the address 0x49 and it interfaces with userspace
through input event interface.

At the current state it provides a touchscreen multitouch functionality up
to 10 fingers. Each finger is enumerated with a distinctive id (from 0 to
9).

If enabled the device can support single "touch" hovering, by providing
three coordinates, x, y and distance.

It is possible to select the touchkey functionality which provides a basic
two keys interface for "home" and "back" menu, typical in mobile phones.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-06-05 15:35:34 -07:00
Linus Torvalds 16a12fa9ae Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:

 - a big update from Mauro converting input documentation to ReST format

 - Synaptics PS/2 is now aware of SMBus companion devices, which means
   that we can now use native RMI4 protocol to handle touchpads, instead
   of relying on legacy PS/2 mode.

 - we removed support from BMA180 accelerometer from input devices as it
   is now handled properly by IIO

 - update to TSC2007 to corretcly report pressure

 - other miscellaneous driver fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (152 commits)
  Input: ar1021_i2c - use BIT to check for a bit
  Input: twl4030-pwrbutton - use input_set_capability() helper
  Input: twl4030-pwrbutton - use correct device for irq request
  Input: ar1021_i2c - enable touch mode during open
  Input: add uinput documentation
  dt-bindings: input: add bindings document for ar1021_i2c driver
  dt-bindings: input: rotary-encoder: fix typo
  Input: xen-kbdfront - add module parameter for setting resolution
  ARM: pxa/raumfeld: fix compile error in rotary controller resources
  Input: xpad - do not suggest writing to Dominic
  Input: xpad - don't use literal blocks inside footnotes
  Input: xpad - note that usb/devices is now at /sys/kernel/debug/
  Input: docs - freshen up introduction
  Input: docs - split input docs into kernel- and user-facing
  Input: docs - note that MT-A protocol is obsolete
  Input: docs - update joystick documentation a bit
  Input: docs - remove disclaimer/GPL notice
  Input: fix "Game console" heading level in joystick documentation
  Input: rotary-encoder - remove references to platform data from docs
  Input: move documentation for Amiga CD32
  ...
2017-05-03 12:38:20 -07:00
Ksenija Stanojevic d81ca730e3 input: touchscreen: mxs-lradc: Add support for touchscreen
Add 4-wire/5-wire touchscreen controller.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-23 12:28:54 +00:00
Dmitry Torokhov a685f48cf6 Merge branch 'tsc2007' into next
Bring in TSC2007 improvements.
2017-02-23 09:22:10 -08:00
H. Nikolaus Schaller f14434040c Input: tsc2007 - add iio interface to read external ADC input and temperature
The tsc2007 chip not only has a resistive touch screen controller but
also an external AUX adc imput which can be used for an ambient
light sensor, battery voltage monitoring or any general purpose.

Additionally it can measure the chip temperature.

This extension provides an iio interface for these adc channels.

Since it is not wasting much resources and is very straightforward,
we simply provide all other adc channels as optional iio interfaces
as weel. This can be used for debugging or special applications.

This patch also splits the tsc2007 driver in several source files:
tsc2007.h -- constants, structs and stubs
tsc2007_core.c -- functional parts of the original driver
tsc2007_iio.c -- the optional iio stuff

Makefile magic allows to conditionally link the iio stuff
if CONFIG_IIO=y or =m in a way that it works with
CONFIG_TOUCHSCREEN_TSC2007=m.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-17 13:21:55 -08:00
Jelle van der Waa 83f66a6f08 Input: add driver for Zeitec ZET6223
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.

Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:54:51 -08:00
Andy Shevchenko aa142ed770 Input: intel-mid-touch - remove driver
The Moorestown support was removed by commit 1a8359e411 ("x86/mid: Remove
Intel Moorestown").

Remove this leftover.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-06 10:31:52 -08:00
Siebren Vroegindeweij 9ca5bf5029 Input: add support for Elan eKTF2127 touchscreen controller
This adds a driver for the Elan eKTF2127 touchscreen controller,
which speaks an i2c protocol which is distinctly different from
the already supported eKTH controllers.

Signed-off-by: Michel Verlaan <michel.verl@gmail.com>
Signed-off-by: Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-26 20:01:58 -07:00
Hans de Goede d18716542d Input: remove duplicate ft6236 driver
The new(ish) ft6236 simply re-implements the M09 protocol of the
(much) older edt-ft5x06.c driver.

This commit removes this duplicate driver and adds the i2c ids and
dt compatible string to the edt-ft5x06.c driver to keep compatibility.

This commit also adds the standard touchscreen properties as optional
properties to the edt,ft5x06 binding, these were documented in the
focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-22 14:16:07 -07:00
Mika Penttilä a485cb037f Input: add driver for SiS 9200 family I2C touchscreen controllers
This is a driver for SiS 9200 family touchscreen controllers using I2C bus.

Signed-off-by: Mika Penttilä <mika.penttila@nextfour.com>
Acked-by: Tammy Tseng <tammy_tseng@sis.com>
Acked-by: Yuger Yu <yuger_yu@sis.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-03 00:49:00 -07:00
Robert Dolca 3197704cae Input: add driver for Silead touchscreens
This driver adds support for Silead touchscreens. It has been tested
with GSL1680 and GSL3680 touch panels.

It supports ACPI and device tree enumeration. Screen resolution,
the maximum number of fingers supported and firmware name are
configurable.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Daniel Jansen <djaniboe@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-02 23:37:49 -07:00
Dmitry Torokhov 8c57a5e7b2 Merge branch 'for-linus' into next
Sync up to bring in wacom_w8001 changes to avoid merge conflicts later.
2016-07-19 11:02:56 -07:00
Jeffrey Lin 48a2b78348 Input: add Raydium I2C touchscreen driver
This adds support for Raydium I2C touch controllers compatible with
RM32380.

Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-05-27 17:08:31 -07:00
Benjamin Tissoires 4feacbc24e Input: add new driver for the Surface 3
This is a basic driver for the Surface 3. I am not so sure it will work
with any firmwares as most values are encoded, but given that I only have
access to my current device with its firmware and I don't have the
datasheet, it should be OK for now.

The Surface Pen is not supported (if it is supposed to be). I'll work on
this when I get one.

Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-05-19 09:35:19 -07:00
Linus Torvalds 12e7b0a627 - New Drivers
- Freescale Touch Screen ADC
    - X-Powers AXP PMIC with RSB
    - TI TPS65086 Power Management IC (PMIC)
  - New Device Support
    - Supply device PCI IDs for Intel Broxton
  - Fix-ups
    - Move to clkdev_create() API; intel_quark_i2c_gpio
    - Complete re-write of TI's TPS65912 Power Management IC (PMIC)
    - Remove unnecessary function argument; axp20x
    - Separate out bus related code; axp20x
    - Coding Style changes; axp20x
    - Allow more drivers to be compiled as modules
    - Work around false positive 'used uninitialised' warning; db8500-prcmu
  - Bug Fixes
    - Remove do_div(); fsl-imx25-gcq
    - Fix driver init when built-in; tps65010
    - Fix clock-unregister leak; intel-lpss
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Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale Touch Screen ADC
   - X-Powers AXP PMIC with RSB
   - TI TPS65086 Power Management IC (PMIC)

  New Device Support:
   - Supply device PCI IDs for Intel Broxton

  Fix-ups:
   - Move to clkdev_create() API; intel_quark_i2c_gpio
   - Complete re-write of TI's TPS65912 Power Management IC (PMIC)
   - Remove unnecessary function argument; axp20x
   - Separate out bus related code; axp20x
   - Coding Style changes; axp20x
   - Allow more drivers to be compiled as modules
   - Work around false positive 'used uninitialised' warning; db8500-prcmu

  Bug Fixes:
   - Remove do_div(); fsl-imx25-gcq
   - Fix driver init when built-in; tps65010
   - Fix clock-unregister leak; intel-lpss"

* tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
  mfd: intel-lpss: Pass I2C configuration via properties on BXT
  mfd: imx6sx: Add PCIe register definitions for iomuxc gpr
  mfd: ipaq-micro: Use __maybe_unused to hide pm functions
  mfd: max77686: Add max77802 to I2C device ID table
  mfd: max77686: Export OF module alias information
  mfd: max77686: Allow driver to be built as a module
  mfd: stmpe: Add the proper PWM resources
  mfd: tps65090: Set regmap config reg counts properly
  mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled
  mfd: as3711: Set regmap config reg counts properly
  mfd: rc5t583: Set regmap config reg counts properly
  gpio: tps65086: Add GPO driver for the TPS65086 PMIC
  mfd: mt6397: Add platform device ID table
  mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: mt6397: Add MT6323 support to MT6397 driver
  mfd: mt6397: Add support for different Slave types
  mfd: mt6397: int_con and int_status may vary in location
  dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
  mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: Add documentation for ACT8945A DT bindings
  ...
2016-03-18 10:15:11 -07:00
Sangwon Jee 6ccb1d8f78 Input: add MELFAS MIP4 Touchscreen driver
This is an input driver for MELFAS MIP4 Touchscreen devices, such as
MMS400, MMS500, MCS8000, MIT200, MIT300, MIT400, MFS10. All devices
implementing MIP4 protocol (MELFAS Interface Protocol Version 4) should
be supported by this driver.

Signed-off-by: Sangwon Jee <jeesw@melfas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-02-17 11:16:12 -08:00
Markus Pargmann 4f7ed234f2 Input: touchscreen: Add imx25 TCQ driver
This is a driver for the imx25 ADC/TSC module. It controls the
touchscreen conversion queue and creates a touchscreen input device.
The driver currently only supports 4 wire touchscreens. The driver uses
a simple conversion queue of precharge, touch detection, X measurement,
Y measurement, precharge and another touch detection.

This driver uses the regmap from the parent to setup some touch specific
settings in the core driver and setup a idle configuration with touch
detection.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Denis Carikli <denis@eukrea.com>
[fix clock's period calculation]
[fix calculation of the 'settling' value]
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 15:40:42 +00:00
Damien Riegel 40e3be3933 Input: add touchscreen support for TS-4800
On this board, the touchscreen, an ads7843, is not handled directly by
Linux but by a companion FPGA. This FPGA is memory-mapped and the IP
design is very similar to the mk712.

This commit adds the support for this IP.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 14:00:51 -08:00
Böszörményi Zoltán 6b0f8f9c52 Input: add eGalaxTouch serial touchscreen driver
There are two EETI touchscreen drivers in the kernel (eeti_ts and
egalax_ts) but both are for I2C-connected panels. This is for a different,
serial and not multi-touch touchscreen panel. The protocol documentation is
at http://www.eeti.com.tw/pdf/Software%20Programming%20Guide_v2.0.pdf

Signed-off-by: Böszörményi Zoltán <zboszor@pr.hu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 11:31:33 -08:00
Michael Welling a748941c95 Input: tsc2004 - add support for tsc2004
This adds support for the i2c based tsc2004 touchscreen controller.

Signed-off-by: Michael Welling <mwelling@ieee.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-03 14:54:22 -08:00
Michael Welling 6ac2438132 Input: tsc2005 - separate SPI and core functions
This patch separates the SPI functionality from core functionality
that overlaps with the tsc2004.

Prepares kernel for new tsc2004 driver without much redundant code.

Signed-off-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-11-03 14:49:25 -08:00
Yoichi Yuasa c7efd12350 Input: add support for ROHM BU21023/24 touchscreen
This adds support for ROHM BU21023/24 Dual touch resistive touchscreens.

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-05 17:50:53 -07:00
Noralf Trønnes 92deea1350 Input: add support for FocalTech FT6236 touchscreen controller
This adds support for the FT6x06 and the FT6x36 family of capacitive touch
panel controllers, in particular the FT6236.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-02 11:44:20 -07:00
Haibo Chen 9a436d524d Input: touchscreen - add imx6ul_tsc driver support
Freescale i.MX6UL contains a internal touchscreen controller,
this patch add a driver to support this controller.

Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-05 11:49:33 -07:00
Sanchayan Maity 48ead50c1d Input: Add touchscreen support for Colibri VF50
The Colibri Vybrid VF50 module supports 4-wire touchscreens using
FETs and ADC inputs. This driver uses the IIO consumer interface
and relies on the vf610_adc driver based on the IIO framework.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-05 11:11:48 -07:00
Dmitry Torokhov 4200e831e4 Input: of_touchscreen - switch to using device properties
Let's switch form OF to device properties so that common parsing code could
work not only on device tree but also on ACPI-based platforms.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-11 17:26:45 -07:00
HungNien Chen 3e30c11c8a Input: add a driver for wdt87xx touchscreen controller
This is a driver for Weida HiTech WDT87xx series touchscreen controller.

Signed-off-by: HungNien Chen <hn.chen@weidahitech.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-06-24 14:55:54 -07:00
Hans de Goede a93ad65d37 Input: add support for ChipOne icn8318 based touchscreens
The ChipOne icn8318 is an i2c capacitive touchscreen controller typically
used in cheap android tablets, this commit adds a driver for it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-24 11:27:52 -07:00
Jonathan Richardson d5ae685f15 Input: add Broadcom iProc touchscreen driver
Add initial version of the Broadcom touchscreen driver.

Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-23 11:04:48 -07:00
Sébastien Szymanski 902cb3afab Input: add support for Semtech SX8654 I2C touchscreen controller
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-06 17:18:17 -08:00
Scott Liu 66aee90088 Input: add support for Elan eKTH I2C touchscreens
This driver supports Elan eKTH I2C touchscreen controllers. Note that these
are using custom protocol, as opposed to other Elan parts that use
HID-over-I2C and are supported by the standard HID-multitouch driver.

Signed-off-by: Scott Liu <scott.liu@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-12-07 23:09:23 -08:00
Bastien Nocera ca96ea86ee Input: add driver for the Goodix touchpanel
Add a driver for the Goodix touchscreen panel found in Onda v975w tablets.
The driver is based off the Android driver gt9xx.c found in some Android
code dumps, but now bears no resemblance to the original driver.

The driver was tested on the aforementioned tablet.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-10-31 09:41:23 -07:00
Christian Gmeiner dd4cae8bf1 Input: Add Microchip AR1021 i2c touchscreen
This patch adds support for the ar1021 i2c based touchscreen.
The driver is quite simple and only supports the Touch
Reporting Protocol.

This is the final version for an RFC patch send a while ago.
http://www.spinics.net/lists/linux-input/msg29419.html

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-10-09 15:27:42 -07:00
Dmitry Artamonow 3ea7e55142 Input: driver for touchscreen on iPaq h3xxx
This adds a driver for the touchscreen connected to the Atmel
microcontroller on the iPAQ h3xxx series.

Based on a driver from handhelds.org 2.6.21 kernel, written by Alessandro
GARDICH, with the bulk of the code for the new input architecture rewritten
by Dmitry Atamonow, and the final polish by Linus Walleij.

Signed-off-by: Alessandro GARDICH <gremlin@gremlin.it>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-07-24 12:39:52 -07:00
Linus Torvalds f4f9b8fc73 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "A big update to the Atmel touchscreen driver, devm support for polled
  input devices, several drivers have been converted to using managed
  resources, and assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (87 commits)
  Input: synaptics - fix resolution for manually provided min/max
  Input: atmel_mxt_ts - fix invalid return from mxt_get_bootloader_version
  Input: max8997_haptic - add error handling for regulator and pwm
  Input: elantech - don't set bit 1 of reg_10 when the no_hw_res quirk is set
  Input: elantech - deal with clickpads reporting right button events
  Input: edt-ft5x06 - fix an i2c write for M09 support
  Input: omap-keypad - remove platform data support
  ARM: OMAP2+: remove unused omap4-keypad file and code
  Input: ab8500-ponkey - switch to using managed resources
  Input: max8925_onkey - switch to using managed resources
  Input: 88pm860x-ts - switch to using managed resources
  Input: 88pm860x_onkey - switch to using managed resources
  Input: intel-mid-touch - switch to using managed resources
  Input: wacom - process outbound for newer Cintiqs
  Input: wacom - set stylus_in_proximity when pen is in range
  DTS: ARM: OMAP3-N900: Add tsc2005 support
  Input: tsc2005 - add DT support
  Input: add common DT binding for touchscreens
  Input: jornada680_kbd - switch top using managed resources
  Input: adp5520-keys - switch to using managed resources
  ...
2014-06-09 18:46:02 -07:00
Sebastian Reichel b98abe52fa Input: add common DT binding for touchscreens
Add common DT binding documentation for touchscreen devices and
implement input_parse_touchscreen_of_params, which parses the common
properties and configures the input device accordingly.

The method currently does not interpret the axis inversion properties,
since there is no matching flag in the generic linux input device.

Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-29 00:05:59 -07:00
Hans de Goede 6decea7c54 Input: add driver for Allwinner sunxi SoC's rtp controller
Note the sun4i-ts controller is capable of detecting a second touch, but
when a second touch is present then the accuracy becomes so bad the
reported touch location is not useable.

The original android driver contains some complicated heuristics using the
aprox. distance between the 2 touches to see if the user is making a pinch
open / close movement, and then reports emulated multi-touch events around
the last touch coordinate (as the dual-touch coordinates are worthless).

These kinds of heuristics are just asking for trouble (and don't belong in
the kernel). So this driver offers straight forward, reliable single touch
functionality only.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-14 16:40:06 -07:00
Alexandre Belloni e4719d8ddb Input: atmel_tsadcc: remove driver
The atmel_tsadcc driver is not used anymore, it has been replaced by at91_adc so
remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-05-07 18:28:41 +02:00
Arnd Bergmann e545ef39e0 Input: remove obsolete tnetv107x drivers
The tnetv107x platform is getting removed, so the touchscreen
and keypad drivers for this platform will no longer be needed
either.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-03-28 01:10:11 -07:00
Florian Echtler bdb5c57f20 Input: add sur40 driver for Samsung SUR40 (aka MS Surface 2.0/Pixelsense)
This patch adds support for the built-in multitouch sensor in the Samsung
SUR40 touchscreen device, also known as Microsoft Surface 2.0 or Microsoft
Pixelsense. Support for raw video output from the sensor as well as the
accelerometer will be added in a later patch.

Signed-off-by: Florian Echtler <floe@butterbrot.org>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-11-20 06:38:44 -08:00
Heiko Stübner c6d81bd723 Input: add driver for Neonode zForce based touchscreens
This adds a driver for touchscreens using the zforce infrared
technology from Neonode connected via i2c to the host system.

It supports multitouch with up to two fingers and tracking of the
contacts in hardware.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-10-31 08:46:08 -07:00
Ferruh Yigit 67bf12ca50 Input: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devices
Cypress TrueTouch(tm) Standard Product controllers,
Generation4 devices, SPI adapter module.

This driver adds communication support with TTSP controller
using SPI bus.

Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-30 21:24:28 -07:00
Ferruh Yigit 4f9e868007 Input: cyttsp4 - I2C driver for Cypress TMA4XX touchscreen devices
Cypress TrueTouch(tm) Standard Product controllers,
Generation4 devices, I2C adapter module.

This driver adds communication support with TTSP controller
using I2C bus.

Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-30 21:24:24 -07:00
Ferruh Yigit 17fb1563d6 Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devices
Cypress TrueTouch(tm) Standard Product controllers,
Generetion4 devices, Core driver.

Core driver is interface between host and TTSP controller and processes
data sent by controller.

Responsibilities of module are IRQ handling, reading system information
registers and sending multi-touch protocol type B events.

Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-30 21:24:21 -07:00
Ferruh Yigit 9664877ed8 Input: cyttsp - I2C driver split into two modules
Existing I2C code is for TrueTouch Gen3 devices

TrueTouch Gen4 device is using same protocol, will split driver into
two pieces to use common code with both drivers.

Read/Write functions parameter list modified, since shared code will
be used by two separate drivers and these drivers are not sharing same
structs, parameters updated to use common structures.

Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-30 21:24:16 -07:00
Linus Torvalds 31564cbd77 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull second round of input updates from Dmitry Torokhov:
 "As usual, there are a couple of new drivers, input core now supports
  managed input devices (devres), a slew of drivers now have device tree
  support and a bunch of fixes and cleanups."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (71 commits)
  Input: walkera0701 - fix crash on startup
  Input: matrix-keymap - provide a proper module license
  Input: gpio_keys_polled - switch to using gpio_request_one()
  Input: gpio_keys - switch to using gpio_request_one()
  Input: wacom - fix touch support for Bamboo Fun CTH-461
  Input: xpad - add a few new VID/PID combinations
  Input: xpad - minor formatting fixes
  Input: gpio-keys-polled - honor 'autorepeat' setting in platform data
  Input: tca8418-keypad - switch to using managed resources
  Input: tca8418_keypad - increase severity of failures in probe()
  Input: tca8418_keypad - move device ID tables closer to where they are used
  Input: tca8418_keypad - use dev_get_platdata() to retrieve platform data
  Input: tca8418_keypad - use a temporary variable for parent device
  Input: tca8418_keypad - add support for shared interrupt
  Input: tca8418_keypad - add support for device tree bindings
  Input: remove Compaq iPAQ H3600 (Bitsy) touchscreen driver
  Input: bu21013_ts - add support for Device Tree booting
  Input: bu21013_ts - move GPIO init and exit functions into the driver
  Input: bu21013_ts - request regulator that actually exists
  ARM: ux500: Strip out duplicate touch screen platform information
  ...
2012-12-18 12:46:37 -08:00
Alexander Shiyan 852d20aed8 Input: remove Compaq iPAQ H3600 (Bitsy) touchscreen driver
The kernel does not contain the symbol SA1100_BITSY so the driver
is never compiled and can be removed safely.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-27 23:16:11 -08:00
Patil, Rachna 55c04de517 input: TSC: ti_tscadc: Rename the existing touchscreen driver
Make way for addition of MFD driver.
The existing touchsreen driver is a MFD client.
For better readability we rename the file to
indicate its functionality as only touchscreen.

Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-05 23:50:27 +01:00
Simon Budig 43c4d13e90 Input: add driver for FT5x06 based EDT displays
This is a driver for the EDT "Polytouch" family of touch controllers
based on the FocalTech FT5x06 line of chips.

Signed-off-by: Simon Budig <simon.budig@kernelconcepts.de>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-24 23:55:03 -07:00
Joonyoung Shim 07b8481d4a Input: add MELFAS mms114 touchscreen driver
This is a initial driver for new touchscreen chip mms114 of MELFAS.
It uses I2C interface and supports 10 multi touch.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-17 23:16:17 -07:00