data->mode is unsigned and can not be less than 0.
Reported-by: NWerner <w.landgraf@ru.ru>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

Instead of allocating and managing keymap separately from the keypad
structure stick it at the end as a variable-length array.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

SIMPLE_DEV_PM_OPS already defines constant dev_pm_ops.

Also guard PM methods with CONFIG_PM_SLEEP and get rid of some
unneeded #ifdefs.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This change implements device tree support for the LPC32xx SoC's touchscreen
controller.
Signed-off-by: NRoland Stigge <stigge@antcom.de>
Reviewed-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Also use CONFIG_PM_SLEEP instead of CONFIG_PM to guard PM methods.
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Because irq_to_gpio() is not available on many platforms let's switch
to level-triggered one-shot IRQs that will stay active as long as
there is data to be read.
Tested-by: NTobita Tatsunosuke <tobita.tatsunosuke@wacom.co.jp>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch converts the drivers in drivers/input/* to use
module_gameport_driver() macro which makes the code smaller
and a bit simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch introduces the module_gameport_driver macro which is a
convenience macro for gameport driver modules similar to
module_platform_driver. It is intended to be used by drivers
which init/exit section does nothing but registers/unregisters the
gameport driver. By using this macro it is possible to eliminate a
few lines of boilerplate code per gameport driver.

Based on work done by Lars-Peter Clausen <lars@metafoo.de> for
other buses (i2c and spi).
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch converts the drivers in drivers/input/* to use
module_serio_driver() macro which makes the code smaller and
a bit simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch introduces the module_serio_driver macro which is a
convenience macro for serio driver modules similar to
module_platform_driver. It is intended to be used by drivers
which init/exit section does nothing but registers/unregisters
the serio driver. By using this macro it is possible to eliminate
a few lines of boilerplate code per serio driver.

Based on work done by Lars-Peter Clausen <lars@metafoo.de> for
other buses (i2c and spi).
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Intuos5 tablets with PTH-* model numbers include a multitouch sensor
which use the same touch reports as the 3rd-generation Bamboo. No
useful information is in the HID descriptor for the touch interface
so hardcoded values are used during setup.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Touch Ring LEDs on Intuos5 tablets use a different report
format which supports only 4 levels of brightness. We remap
the 7-bit value obtained from sysfs to an appropriate value
for the tablet. Control of the crop mark LEDs (new to the I5)
is left for a later patch.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Intuos5 uses a new report type for Touch Ring and ExpressKey data.
Note that data from the capacitive sensors present on the ExpressKeys
will be ignored until a proper way is found to expose it.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for the basic pen functions of Intuos5
tablets.
Signed-off-by: NJason Gerecke <killertofu@gmail.com>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Reviewed-by: NPing Cheng <pingc@wacom.com>
Tested-by: NTimo Aaltonen <tjaalton@ubuntu.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Acked-by: NRafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: NSimon Horman <horms@verge.net.au>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch enables DT support for the st1232 driver
which is primarily used on the sh7372 Mackerel board.

[dtor@mail.ru: chnaged to use CONFIG_OF and of_match_ptr]
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This driver adds support for the keypad part of the LM8333 and is
prepared for possible GPIO/PWM drivers. Note that this is not a MFD
because you cannot disable the keypad functionality which, thus,
has to be handled by the core anyhow.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
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>

'struct serio' is a refcounted data structure with lifetime rules different
from 'struct xps2data'. It is quite likely that serio_unregister_port() will
try to free memory allocated by the port and that is why it should be
allocated separately.

Also switch to using platform_get/set_drvdata instead of dev_get/set_drvdata
because we are dealing with platform device.
Reported-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Following commit broke DT support for tegra-kbc by removing pdata
allocation completely:

   commit 023cea0e
   Author: Shridhar Rasal <srasal@nvidia.com>
   Date:   Fri Feb 3 00:27:30 2012 -0800

       Input: tegra-kbc - allow skipping setting up some of GPIO pins

This patch restores it.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

On multi-platform kernels, the Amiga joystick driver may be initialized
when running on Amiga only. Else it may crash later.
Fortunately this driver is almost always compiled as a module (to avoid
conflicts with the mouse driver), so it needs an explicit insmod to
trigger a crash.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

When a tablet connect or disconnect is detected, schedule
work queue to register or unregister related input devices.

When a wireless tablet connects, it reports same USB PID
used if tablet is connected with USB cable. Use this to
update features values, set input capabilities, and then
register device.  From there, the Pen and Touch interfaces
will reuse the existing tablet's IRQ routines.

Its possible that 1 receiver is shared with 2 tablets with
different PID (small and medium Bamboo for example) so the
input is unregister at disconnect to better support this case.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Tested-by: NJason Gerecke <killertofu@gmail.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The 3rd gen Bamboo Pen & Touch and Intuos5 tablets support an
optional wireless module. When its receiver is plugged into USB,
it presents 3 interfaces: 0) Monitor 1) Pen and 2) Touch.

The exact capabilities of the Pen and Touch interfaces can
not be determined until a tablet connection is established
and reported over the Monitor interface.

This patch detects this wireless receiver and enables interrupt
packets to be processed for the Monitor interface. Processing
the data in packets will be left to another patch.

Since it doesn't make sense to create an input device for the
Monitor interface, it is not created. Creation of Pen and Touch
input device is also delayed until monitor packets can be processed.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Tested-by: NJason Gerecke <killertofu@gmail.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Although this better co-locates input registration logic,
the main goal is to make it easier to optionally create
input devices or delay creation to later time periods.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Tested-by: NJason Gerecke <killertofu@gmail.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NOskari Saarenmaa <os@ohmu.fi>
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Improve code readability by converting yet another magic number into a
pre-defined constant.
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

- Hooking multi-finger coordinates output with kernel multitouch library;
- Enabling absolute coordinates output for Cx+ hardware. The older hardware
  performs much better in relative mode; thus relative mode related code
  are preserved.

Part of the code is based on the work done by Oskari Saarenmaa <os@ohmu.fi>,
which was used to support the clickpad found on ASUS UX21/31 Ultrabook.
On the other hand, the FSP found on UX21/31 doesn't have hardware capability
register other than PnP ID, which means that we'll have to figure out an
alternative approach to identify such pad correctly; otherwise, blindly
adding INPUT_PROP_BUTTONPAD property may compatability issues amongst
existing FSPs.
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

- Move event bits setup code into a separate function,
  fsp_set_input_params(), so that we can perform hardware-specific settings
  in the future;
- Take hardware version information into account when activating
  protocol;
- Remove button information from boot message as it's somewhat confusing
  and is only for internal processing. While there, also move button
  retrieval code to be a part of protocol activation process.
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Some of buttons, like power-on key or onkey, may only generate interrupts
when pressed and not actually be mapped as gpio in the system. Allow
setting gpio to invalid value and specify IRQ instead to support such
keys. The debounce timer is used not to debounce but to ignore new IRQs
coming while button is kept pressed.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

request_any_context_irq() should handle the case when using GPIO expanders
that themselves use threaded IRQs, and so the premise of change
7e2ecdf4 is incorrect.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The platform data should not be altered and therefore should be
accessed through const pointers.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We must use platform_device_add_data() instead of kbd_set_plat_data() so
let's remove it.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
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>

Instead of having to define the match table to NULL if CONFIG_OF isn't
set, use the of_match_ptr() macro which will do this for us.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

This patch converts the drivers in drivers/input/* to use the
module_i2c_driver() macro which makes the code smaller and a bit
simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch converts the drivers in drivers/input/* to use the
module_spi_driver() macro which makes the code smaller and a bit
simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>