This driver supports Elan I2C/SMbus touchpads found in some laptops and
also in many Chromebooks.
Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Reviewed-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This change switches to using devm_* managed resources APIs to
request the resources in probe to simplify probe error path and
module unloading.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This change switches ithe driver to use devm_* APIs to allocate resources.
This helps to simplify failure path in probe function and module unloading
and does away with remove function.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This change switches the driver to use devm_* managed resources APIs to
request the resources in probe to simplify probe error path and module
unloading and does away with remove function.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Active multiplexing is a nice feature as it allows several pointing devices
(such as touchpad and external mouse) use their native protocols at the
same time. Unfortunately many manufacturers do not implement the feature
properly even though they advertise it. The problematic implementations are
never fixed, since Windows by default does not use this mode, and move from
one BIOS/model of laptop to another. When active multiplexing is broken
turning it on usually results in touchpad, keyboard, or both unresponsive.

With PS/2 usage on decline (most of PS/2 devices in use nowadays are
internal laptop touchpads), I expect number of users who have laptops with
working MUX implementation, docking stations with external PS/2 ports, and
who are still using external PS/2 mice, to be rather small. Let's flip the
default to be OFF and allow activating it through i8042.nomux=0 kernel
option.  We'll also keep DMI table where we can record known good models.
Acked-by: NJiri Kosina <jkosina@suse.cz>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Without this the aux port does not get detected, and consequently the
touchpad will not work.

https://bugzilla.redhat.com/show_bug.cgi?id=1110011

Cc: stable@vger.kernel.org
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Unfortunately, ForcePad capability is not actually exported over PS/2, so
we have to resort to DMI checks.

Cc: stable@vger.kernel.org
Reported-by: NNicole Faerber <nicole.faerber@kernelconcepts.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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.htmlSigned-off-by: NChristian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

To enable the cros_ec_keyb driver to be auto-loaded when build as
module add an of match table (and export it) to match the modalias
information passed on to userspace as the Cros EC MFD driver registers
the MFD subdevices with an of_compatibility string.
Signed-off-by: NSjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Fix the format string for serio device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.
Signed-off-by: NRichard Leitner <richard.leitner@skidata.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Fix the format string for input device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.
Signed-off-by: NRichard Leitner <richard.leitner@skidata.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Let's automatically set EV_ABS bit in device's event type list when calling
input_set_abs_params() so that drivers do not have to do it explicitly.

These calls are never in a hot paths so we won't lose much time by setting
the same bit several times.
Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

In case we start with the device not fully quiesced we should make sure we
cancel the workqueue after freeing interrupt.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This change switch to managed resources to simplifies error handling
and module unloading and does away with platform_driver remove function.
Signed-off-by: NPramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The 'max' size passed into the function is measured in number of bits
(KEY_MAX, LED_MAX, etc) so we need to convert it accordingly before trying
to copy the data out, otherwise we will try copying too much and end up
with up with a page fault.
Reported-by: NPavel Machek <pavel@ucw.cz>
Reviewed-by: NPavel Machek <pavel@ucw.cz>
Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

ACPI device enumeration mechanism changed a lot since 3.16-rc1.
ACPI device objects with _HID will be enumerated to platform bus by default.
For the existing PNP drivers that probe the PNPACPI devices, the device ids
are listed explicitly in drivers/acpi/acpi_pnp.c.
But ACPI folks will continue their effort on shrinking this id list by
converting the PNP drivers to platform drivers, for the devices that don't
belong to PNP bus in nature.
Signed-off-by: NJin Yao <yao.jin@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

We need to add this module to the nomux table to be able to detect the
touchpad.

Cc: stablevger.kernel.org
Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Follow the license string convention indicated in include/linux/module.h
(don't capitalize v).

This fixes following randconfig warning:
FATAL: modpost: GPL-incompatible module palmas-pwrbutton.ko uses GPL-only symbol 'platform_driver_unregister'

Fixes: adff5962 ("Input: introduce palmas-pwrbutton")
Reported-by: NJim Davis <jim.epost@gmail.com>
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

make C=2 CHECK="scripts/coccicheck" MODE=report COCCI=scripts/coccinelle/misc/irqf_oneshot.cocci ./drivers/input/misc/palmas-pwrbutton.o
Reports:
drivers/input/misc/palmas-pwrbutton.c:213:9-29: ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT

Palmas power button just needs threaded IRQ handler since I2C operations
are involved and there is nothing in non-threaded primary handler we could
do.

So mark the request with ONESHOT as it should have been done in these
cases.

Fixes: adff5962 ("Input: introduce palmas-pwrbutton")
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The Asus X450 and X550 laptops use a PS/2 touchpad from a new
manufacturer called FocalTech:

https://bugzilla.kernel.org/show_bug.cgi?id=77391
https://bugzilla.redhat.com/show_bug.cgi?id=1110011

The protocol for these devices is not known at this time, but even
without knowing the protocol they need some special handling. They get
upset by some of our other PS/2 device probing, and once upset generate
random mouse events making things unusable even with an external mouse.

This patch adds detection of these devices based on their pnp ids, and
when they are detected, treats them as a bare ps/2 mouse. Doing things
this way they at least work in their ps/2 mouse emulation mode.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The matches_pnp_id function from the synaptics driver is useful for other
drivers too. Make it a generic psmouse helper function.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The current codes in gameport and analog joystick drivers for the time
accounting have a long-standing problem when the system is running
with CPU freq; since the timing is measured via TSC or sample counter,
the calculation isn't reliable.

In this patch, as a simple fix, use the standard ktime to measure the
timing.  In case where no high resolution timer is available,
use_ktime bool option is provided to both modules.  Setting
use_ktime=false switches to the old methods.
Tested-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This driver to supports the haptic controller on MAX77693 Multifunction
device with PMIC, CHARGER, LED, MUIC, HAPTIC.

This driver supports external pwm and LRA (Linear Resonant Actuator) motor.
User can control the haptic device via force feedback framework.
Signed-off-by: NJaewon Kim <jaewon02.kim@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Many palmas family of PMICs have support for interrupt based power button.
This allows the device to notify the processor of external push button
events over the shared palmas interrupt. However, this event is generated
only during a "press" operation. Software is supposed to poll(sigh!) for
detecting a release event.

The PMIC also supports ability to power off independent of the software
decisions when the button is pressed for a long duration if the PMIC is
appropriately configured on the platform.

Even though the function is similar to twl4030_pwrbutton, it is
substantially different in operation to belong to a new driver of it's own.

Based on original work done by Girish S Ghongdemath <girishsg@ti.com>
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

So that firmware-id matching can be used with multiplexed aux ports too.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The sys_vendor / product_name are somewhat generic unfortunately, so this
may lead to some false positives. But nomux usually does no harm, where as
not having it clearly is causing problems on the Avatar AVIU-145A6.

https://bugzilla.kernel.org/show_bug.cgi?id=77391

Cc: stable@vger.kernel.org
Reported-by: NHugo P <saurosii@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

https://bugzilla.kernel.org/show_bug.cgi?id=69731

Cc: stable@vger.kernel.org
Reported-by: NJason Robinson <mail@jasonrobinson.me>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

We are getting more and more reports about LG laptops not having
functioning keyboard if we try to deactivate keyboard during probe.
Given that having keyboard deactivated is merely "nice to have"
instead of a hard requirement for probing, let's disable it on all
LG boxes instead of trying to hunt down particular models.

This change is prompted by patches trying to add "LG Electronics"/"ROCKY"
and "LG Electronics"/"LW60-F27B" to the DMI list.

https://bugzilla.kernel.org/show_bug.cgi?id=77051

Cc: stable@vger.kernel.org
Reported-by: NJaime Velasco Juan <jsagarribay@gmail.com>
Reported-by: NGeorgios Tsalikis <georgios@tsalikis.net>
Tested-by: NJaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

When running a 32-bit inputattach utility in a 64-bit system, there will be
error code "inputattach: can't set device type". This is caused by the
serport device driver not supporting compat_ioctl, so that SPIOCSTYPE ioctl
fails.

Cc: stable@vger.kernel.org
Signed-off-by: NJohn Sung <penmount.touch@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

[Nick Dyer: reworked to move free of input device into separate function
and only call in paths that require it.]
Signed-off-by: NNick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

ForcePads are found on HP EliteBook 1040 laptops. They lack any kind of
physical buttons, instead they generate primary button click when user
presses somewhat hard on the surface of the touchpad. Unfortunately they
also report primary button click whenever there are 2 or more contacts
on the pad, messing up all multi-finger gestures (2-finger scrolling,
multi-finger tapping, etc). To cope with this behavior we introduce a
delay (currently 50 msecs) in reporting primary press in case more
contacts appear.

Cc: stable@vger.kernel.org
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

When trying to use the matrix-keypad driver with GPIO drivers that
require nested irq handlers (e.g. I2C GPIO adapters like PCA9554),
request_irq() fails because the GPIO driver requires a threaded
interrupt handler.

Use request_any_context_irq() to be able to use any GPIO driver as
keypad driver.
Signed-off-by: NLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

In the case where the CHG/interrupt line mode is not configured correctly,
this warning is output to dmesg output for each interrupt. Downgrade the
message to debug.
Signed-off-by: NNick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Adding support for the DRV2667 haptic driver.  This device has the ability
to store vibration patterns in RAM and execute them once the GO bit is set.

The initial driver sets a basic waveform in the first waveform sequence and
will play the waveform when the GO bit is set and will continously play the
waveform until the GO bit is unset.

Data sheet is here: http://www.ti.com/product/drv2667Signed-off-by: NDan Murphy <dmurphy@ti.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Use the correct register address for Calibration Active and Interrupt
Enable.
Signed-off-by: NKlaus Goger <klaus.goger@theobroma-systems.com>
Acked-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

I've not done a full audit of all mouse drivers, I noticed these ones were
missing the POINTER property while working on the POINTING_STICK property.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

It is useful for userspace to know that there not dealing with a regular
mouse but rather with a pointing stick (e.g. a trackpoint) so that
userspace can e.g. automatically enable middle button scrollwheel
emulation.

It is impossible to tell the difference from the evdev info without
resorting to putting a list of device / driver names in userspace, this is
undesirable.

Add a property which allows userspace to see if a device is a pointing
stick, and set it on all the pointing stick drivers.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: NPeter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Adjust Elantech signature validation to account fo rnewer models of
touchpads.

Cc: stable@vger.kernel.org
Reported-and-tested-by: NMàrius Monton <marius.monton@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The userspace xboxdrv driver knows some more device ids than the kernel.
This patch adds the missing xbox gamepads from [1] to xpad.c

[1] https://github.com/Grumbel/xboxdrv/blob/master/src/xpad_device.cppSigned-off-by: NBenjamin Valentin <benpicco@zedat.fu-berlin.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>