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: NPavel Machek <pavel@ucw.cz>
Acked-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NHans de Goede <hdegoede@redhat.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The tnetv107x platform is getting removed, so the touchscreen
and keypad drivers for this platform will no longer be needed
either.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Acked-by: NKevin Hilman <khilman@linaro.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NFlorian Echtler <floe@butterbrot.org>
Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
Reviewed-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NFerruh Yigit <fery@cypress.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: NJavier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NFerruh Yigit <fery@cypress.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: NJavier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NFerruh Yigit <fery@cypress.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: NJavier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NFerruh Yigit <fery@cypress.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: NJavier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The kernel does not contain the symbol SA1100_BITSY so the driver
is never compiled and can be removed safely.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NPatil, Rachna <rachna@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This is a driver for the EDT "Polytouch" family of touch controllers
based on the FocalTech FT5x06 line of chips.
Signed-off-by: NSimon Budig <simon.budig@kernelconcepts.de>
Reviewed-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This is a initial driver for new touchscreen chip mms114 of MELFAS.
It uses I2C interface and supports 10 multi touch.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This driver adds support for DA9052/53 4-wire resistive ADC interfaced
touchscreen controller. DA9052/53 is a multi-function device, therefore
this driver depends on DA9052/53 core.

This patch is functionally tested on Samsung SMDKV6410.
Signed-off-by: NDavid Dajun Chen <dchen@diasemi.com>
Signed-off-by: NAshish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This adds support for Wacom Stylus device with I2C interface.

[Dan Carpenter <dan.carpenter@oracle.com>: fix NULL-pointer dereference
 in error handling path.]
Signed-off-by: NTatsunosuke Tobita <tobita.tatsunosuke@wacom.co.jp>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The driver supports chipsets ILI2102, ILI2102s, ILI2103, ILI2103s and
ILI2105. Such kind of controllers can be found in Amazon Kindle Fire
devices.
Reviewed-by: NJan Paesmans <jan.paesmans@gmail.com>
Reviewed-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NOlivier Sobrie <olivier@sobrie.be>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for TI's touchscreen
controller for a 4/5/8 wire resistive panel
that is directly fed to the ADC.

This touchscreen controller will be part of
AM335x TI SoC. The TRM can be found at:
http://www.ti.com/lit/ug/spruh73a/spruh73a.pdfSigned-off-by: NPatil, Rachna <rachna@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Cypress TrueTouch(tm) Standard Product controllers are found in
a wide range of embedded devices. This driver add support for a
variety of TTSP controllers.

Since the hardware is capable of tracking identifiable contacts, multi-touch
protocol type B (stateful) is used to report contact information.

The driver is composed of a core driver that process the data sent by
the contacts and a set of bus specific interface modules. This patch
adds the base core TTSP driver.
Signed-off-by: NJavier Martinez Canillas <javier@dowhile0.org>
Reviewed-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds a driver for PIXCIR's I2C connected touchscreens.
Signed-off-by: NJianchun <jcbian@pixcir.com.cn>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Some displays from AUO have a so called in-cell touchscreen, meaning it
is built directly into the display unit.

Touchdata is gathered through PIXCIR Tango-ICs and processed in an
Atmel ATmega168P with custom firmware. Communication between the host
system and ATmega is done via I2C.

Devices using this touch solution include the Dell Streak5 and the family
of Qisda ebook readers.

The driver reports single- and multi-touch events including touch area
values.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds the EETI eGalax serial multi touch controller driver.

EETI eGalax serial touch screen controller is a I2C based multiple
capacitive touch screen controller, it can support 5 touch events maximum.
Signed-off-by: NZhang Jiejing <jiejing.zhang@freescale.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds the TSC-40 serial touchscreen driver and should be
compatible with TSC-10 and TSC-25.

The driver was written by Linutronix on behalf of Bachmann electronic GmbH.
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NChristian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add MAXI max11801 resistive touchscreen controller driver. This driver
uses Auto Mode and Aperture Mode.

Support for other max1180x devices can be added to this driver as well,
as they use almost the same register addresses and codes.

You can find data sheet here:
http://www.maxim-ic.com/datasheet/index.mvp/id/5943Signed-off-by: NZhang Jiejing <jiejing.zhang@freescale.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Discussions:

http://www.mail-archive.com/linux-omap@vger.kernel.org/msg26748.html

Introduce a driver for the Texas Instruments TSC2005 touchscreen
controller (http://focus.ti.com/docs/prod/folders/print/tsc2005.html).

The patch is based on a driver by Lauri Leukkunen, with modifications
by David Brownell, Phil Carmody, Imre Deak, Hiroshi DOYU, Ari Kauppi,
Tony Lindgren, Jarkko Nikula, Eero Nurkkala and Roman Tereshonkov.
Signed-off-by: NLauri Leukkunen <lauri.leukkunen@nokia.com>
[aaro.koskinen@nokia.com: patch description, rebasing & cleanup]
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
[ext-srikar.1.bhavanarayana@nokia.com: various fixes]
Signed-off-by: NSrikar <ext-srikar.1.bhavanarayana@nokia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Since the driver will be supporting whole range of Atmels mXT touchscreen
controllers we better rename it to atmel_mxt_ts.
Acked-by: NIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Some of the WM831x series of PMICs from Wolfson Microelectronics include
a resistive touchscreen controller. Implement support for these controllers
within the input API.

Platform data is supported to allow configuration of system parameters such
as selection between four and five wire touchscreens and for specification
of optional direct to CPU IRQs for sample availability and for pen down.
Use of this feature for at least the data IRQ is strongly recommended.

Thanks to Julien Boibessot for extensive testing and detailed feedback.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NJulien Boibessot <julien.boibessot@armadeus.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch introduces support for Sitronix ST1232 integrated capacitive
touchscreen with LCD module. The touchscreen is multitouch capable and
can report coordinates of up to two contact points.
Signed-off-by: NTony SIM <chinyeow.sim.xt@renesas.com>
Reviewed-by: NTrilok Soni <tsoni@codeaurora.org>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add the ROHM BU21013 capacitive touch panel controller support with
i2c interface.
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NNaveen Kumar Gaddipati <naveen.gaddipati@stericsson.com>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for tnetv107x's on-chip touchscreen controller.
Signed-off-by: NCyril Chemparathy <cyril@ti.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

The driver is in reasonable shape now so let's move it out of staging.
Acked-by: NAlan Cox <alan@linux.intel.com>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch set introduces support for the LPC32xx touchscreen
controller driver. The LPC32xx touchscreen controller supports
automated event detection and X/Y data conversion for resistive
touchscreens.
Signed-off-by: NKevin Wells <wellsk40@gmail.com>
Signed-off-by: NDurgesh Pattamatta <durgesh.pattamatta@nxp.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This one adds a driver for STMPE touchscreen controllers.
This driver depends on the stmpexxx mfd core driver.
Signed-off-by: NLuotao Fu <l.fu@pengutronix.de>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add support for the cy8ctmg110 capacitive touchscreen used on some
embedded devices.

(Some clean up by Alan Cox)
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The chip's full name is AT42QT602240 or ATMXT224. This is a capacitive
touchscreen supporting 10-contact multitouch and using I2C interface.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The ad7879 driver is using the old bus method of only supporting one
at a time (I2C or SPI). So refactor it like the other input drivers
that support multiple busses simultaneously.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add touch screen input driver for TPS6507x family of multi-function
chips.  Uses the TPS6507x MFD driver.  No interrupt support due to
testing limitations of current hardware.
Signed-off-by: NTodd Fischer <todd.fischer@ridgerun.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The corgi touchscreen is now deprecated in favour of the generic ads7846.c
driver. The noise reduction technique used in corgi_ts.c, which is to wait
till vsync before ADC sampling, is also integrated into ads7846 driver now.
Provided that the original driver is not generic and is difficult to maintain,
it will be removed now.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Adds support for Hampshire TSHARC serial touchscreens.  Implements
Hampshire's 4-byte communication protocol.
Signed-off-by: NAdam Bennett <abennett72@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The corgi touchscreen is now deprecated in favour of the generic ads7846.c
driver. The noise reduction technique used in corgi_ts.c, which is to wait
till vsync before ADC sampling, is also integrated into ads7846 driver now.
Provided that the original driver is not generic and is difficult to maintain,
it will be removed now.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Enable touchscreen driver for the 88pm860x multi function core.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>