As noted by Arve and others, since wall time can jump backwards, it is
difficult to use for input because one cannot determine if one event
occurred before another or for how long a key was pressed.

However, the timestamp field is part of the kernel ABI, and cannot be
changed without possibly breaking existing users.

This patch adds a new IOCTL that allows a clockid to be set in the
evdev_client struct that will specify which time base to use for event
timestamps (ie: CLOCK_MONOTONIC instead of CLOCK_REALTIME).

For now we only support CLOCK_MONOTONIC and CLOCK_REALTIME, but
in the future we could support other clockids if appropriate.

The default remains CLOCK_REALTIME, so we don't change the ABI.
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
Reviewed-by: NDaniel Kurtz <djkurtz@google.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>

And add two new data formats.
Tested-by: NChris Bagwell <chris@cnpbagwell.com>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Tested-by: NChris Bagwell <chris@cnpbagwell.com>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Correct spelling "connetced" to "connected" in pcf8574_keypad
description in drivers/input/misc/Kconfig.
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Enable keypress interrupt to support wakeup from low power state.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for Tegra30 by correcting definitions. This is necessary to
make driver useful in Tegra30.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Acked-by: NStephen Warren: <swarren@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We don't actually care if the device has been runtime suspended immediately
so we can just drop the reference without waiting for any state change to
be implemented. This may allow us to avoid some suspend/resume cycles and
is a bit more friendly to the rest of the system.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Convert the driver to standard spilt model arch-specific code registers
platform device to which driver code can bind later.

Also request IRQ immediately upon binding to the device instead of doing
this when serio port is being opened.
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Convert driver to use dev_pm_ops instead of legacy PM infrastructure.
Also make 'open' a bool since it is really a boolean.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Also proper guard for system suspend/resume methods is CONFIG_PM_SLEEP,
not CONFIG_PM.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Because we are using platform_device_probe() to register the driver
we do not need to assign driver's probe method. We also can mark
ske_keypad_probe(), together with ske_keypad_chip_init(), as __init
instead of __devinit.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This adds two missing kerneldoc entries for the TC3589x
keypad driver.
Signed-off-by: NNaga Radhesh <naga.radheshy@stericsson.com>
Reviewed-by: NSrinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Instead of manually create and handler kernel thread switch to threaded
IRQ and let kernel IRQ core manage thread for us.
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Let compiler figure out which ones makes most sense to inline.
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add __devinit/__devexit sections annotations so parts of code could be
discarded after completing driver initialization.
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

So that it has proper symlink to the containing module in sysfs.
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Instead of using legacy PM interfaces switch to using dev_pm_ops.
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Several protocol initialization routines can fail after they set up
psmouse methods, such as reconnect and disconnect. This may lead to
these stale methods used with different protocol that they were
intended to be used for and may cause unpredictavle behavior and/or
crashes.

Make sure we start with a clean slate before executing each and every
protocol detection and/or initialization routine.
Reported-by: NPaul Fox <pgf@laptop.org>
Acked-by: NTai-hwa Liang <avatar@sentelic.com>
Acked-by: NPaul Fox <pgf@laptop.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

If there is a full packet in the buffer, and we overflow that buffer
right after checking for that condition, it would have been possible
for us to block indefinitely (rather, until the next full packet) even if
the file was marked as O_NONBLOCK.

Cc: Jeff Brown <jeffbrown@android.com>
Signed-off-by: NDima Zavin <dima@android.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDima Zavin <dima@android.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Without this, it was possible for the reader to get ahead of packet_head.
If the input device generated a partial packet *right* after the reader
got ahead, then we can get into a situation where the device is marked
readable, but read always returns 0 until the next packet is finished
(i.e a SYN is generated by the input driver).

This situation can also happen if we overflow the buffer while a reader
is trying to read an event out.
Signed-off-by: NDima Zavin <dima@android.com>
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>

When runtime power management is enabled put the Samsung keypad driver
into suspend mode with wakeups disabled whenever the device is open but
a key is not actually been pressed. As well as saving a trivial amount of
power this will support the use of SoC wide idle modes which put the entire
device into a retention mode and use explicit wakeup sources to exit.

Since not all of the interrupt controllers used with the driver support
set_irq_wake() (though they all do the right thing) and there's a nasty
WARN() when we disable wake after failing to enable it keep track of the
current wake status from runtime PM and only disable wake if we managed
to enable it; I'm not entirely sure why this doesn't affect the existing
uses of the API in the driver.

System suspend is unaffected as the driver core will runtime resume any
suspended devices prior to system suspend.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Conflicts:

	drivers/input/keyboard/samsung-keypad.c

Tegra kbc cannot detect exact keypress causing wakeup in interrupt mode.
Allow wakeup keypress to be reported for certain platforms.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This adds a simple device tree binding to the tegra keyboard controller.

Also, mark the default keymap as __devinitdata since it is not referenced
after boot.
Signed-off-by: NOlof Johansson <olof@lixom.net>
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 will improve the output of the sensor.
Signed-off-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This also changes the devname parameter delivered to
request_threaded_irq() from "mpu_int" to "mpu3050".
Signed-off-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Adding invn,mpu3050 as the initial id.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

- Add documentation for the Cx/Dx hardware release;
- Fix wrong register offset for retrieving button information;
- Document programming sequence for page register R/W;
- Document a couple of supported gesture IDs.
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Cintiq 24HD has three LEDs on the left side of the tablet and
three LEDs on the right side of the tablet. Switching to LED 0,
1, or 2 will enable the top, middle, or bottom LED for the respective
side. Switching to LED 3 turns off the LEDs on the respective side.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Adds support for the Cintiq 24HD. There are two quirks about this
model that haven't been seen in prior tablets. First, a second
touch ring is present on this display; it is being exposed via the
ABS_THROTTLE axis. Second, three capacitive buttons at the top of
the unit are available; though physically a touch strip, we report
the use of these buttons with generic KEY_ events.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This driver adds support for Sharp's GP2AP002A00F proximity sensor. The
proximity is measured as a binary switch, i.e. an object is either
detected or not detected. Hence, this driver is implemented as a switch
that reports SW_FRONT_PROXIMITY.
Reviewed-by: NDatta Shubhrajyoti <shubhrajyoti@ti.com>
Signed-off-by: NCourtney Cavin <courtney.cavin@sonyericsson.com>
Signed-off-by: NOskar Andero <oskar.andero@sonyericsson.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

These symbols are not used outside it's driver so no need to
make the symbol global.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch converts mc13783-pwrbutton to use the module_platform_driver()
macro which makes the code smaller and a bit simpler.

Also staticise mc13783_pwrbutton_driver which is not used outside
this driver so no need to make the symbol global.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Register input device last so that we do not have to reset
input device pointer after calling input_unregister_device().
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>