There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the cy8ctmg110_ts driver over.

Compile tested only.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the migor_ts driver over.

Compile tested only.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the mcs5000_ts driver over.

Compile tested only.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the eeti_ts driver over.

Compile tested only by me, but Sven Neumann reports that the new code
works.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NSven Neumann <s.neumann@raumfeld.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the ad7879-ts I2C support over.

Compile tested only.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Not all penabled devices support touch. The same holds true for touch
devices, so we should be setting up devices according to the results
returned when we query the hardware.
Signed-off-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This makes code safer and easier to read.
Signed-off-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds notebook Acer Aspire 5100 to the list of Dritek HW. Acer
Aspire 5100 needs Dritek keyboard extension to support all Fn keys.
Signed-off-by: NPali Rohár <pali.rohar@gmail.com>
Tested-by: NPali Rohár <pali.rohar@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

OLPC has switched to a Synaptics touchpad.  It turns out that it's
pretty useless in absolute mode.  This patch looks for an OLPC
system (via DMI tables), and refuses to init Synaptics mode in
that scenario (falling back to relative mode).
Signed-off-by: NAndres Salomon <dilinger@queued.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Minor comment fixup for typos and grammar. Noticed while adding a
separate workaround.
Signed-off-by: NAndres Salomon <dilinger@queued.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

In multitouch mode, at least one device (fw: 7.4 id: 0x1c0b1) sometimes
sends a final main packet with x == 1. Since the normal values are above
1472, this is clearly bogus. At the same time, a two-finger touch is
signaled, even though only one finger was on the pad to begin with. This
patch ignores the packet altogether, removing the problem.
Acked-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NChase Douglas <chase.douglas@canonical.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

The Synaptics 2.7 series of touchpads support a mode for reporting two
sets of X/Y/Pressure data (advanced gesture mode). By default, these
devices report only single finger data, depriving userspace of the
nowadays ubiquitous two-finger scroll gesture.

Enabling advanced gesture mode also enables the multi-finger report,
although the device does not claim that capability. Up to three
fingers can be reported this way.

While two or three fingers are touching, the normal packet is
prepended by a reduced finger packet of lower resolution. From the two
packets (which do not represent the actual fingers), the bounding
rectangle of the individual contacts can be extracted.  This
information is sufficient to perform scaling gestures and a limited
form of rotation gesture. The behavior has been coined semi-mt
capability, and is signaled to userspace via the INPUT_PROP_SEMI_MT
device property.

Work to decode the advanced gesture packet: Takashi Iwai.
Cleanup and testing of the original patch: Chase Douglas.
Minor cleanup and testing: Chris Bagwell.
Finalization and semi-mt support: Henrik Rydberg.

Reported-by: Tobyn Bertram
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NChase Douglas <chase.douglas@canonical.com>
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

With the new input property interface, it is possible to report the
special quirks of a device using ioctl/sysfs. This patch sets up the
device as a pointer, and reports the clickpad functionality via the
INPUT_PROP_BUTTONPAD property.
Acked-by: NChase Douglas <chase.douglas@canonical.com>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

Looking at the uevent stream for input devices, all properties are on
the form "A=B" except the bitmap values, which are on the form
"A==B". This bug has been around at least since 2007, and the input
uevent code has been untouched since. The recent addition of device
properties suggests this is a good time for a remedy.
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

Today, userspace sets up an input device based on the data it emits.
This is not always enough; a tablet and a touchscreen may emit exactly
the same data, for instance, but the former should be set up with a
pointer whereas the latter does not need to. Recently, a new type of
touchpad has emerged where the buttons are under the pad, which
changes logic without changing the emitted data. This patch introduces
a new ioctl, EVIOCGPROP, which enables user access to a set of device
properties useful during setup. The properties are given as a bitmap
in the same fashion as the event types, and are also made available
via sysfs, uevent and /proc/bus/input/devices.
Acked-by: NPing Cheng <pingc@wacom.com>
Acked-by: NChase Douglas <chase.douglas@canonical.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

The drivers using the type B protocol all report tracking information
the same way. The contact id is semantically equivalent to
ABS_MT_SLOT, and the handling of ABS_MT_TRACKING_ID only complicates
the driver. The situation can be improved upon by providing a common
pointer emulation code, thereby removing the need for the tracking id
in the driver.  This patch moves all tracking event handling over to
the input core, simplifying both the existing drivers and the ones
currently in preparation.
Acked-by: NPing Cheng <pingc@wacom.com>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

The MT slots devices all follow the same initialization pattern
of creating slots and hinting about buffer size. Let drivers call
an initialization function instead, and make sure it can be called
repeatedly without side effects.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

In preparation for common code to handle a larger set of MT slots
devices, move the slots handling over to a separate file.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>

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>

This should allow loading this module automatically on systems that
have such device.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Support 8-bit tca6408a I/O expander as a keypad.
Signed-off-by: NTony SIM <chinyeow.sim.xt@renesas.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Standardized message logging prefixes.
Removed \n from dbg macro, added \n to each dbg call site.
Removed direct use of __FILE__ from dbg, converted to pr_fmt(fmt)
Added non-debug printf argument verification of dbg calls
Removed "i8042.c" from printks, converted to pr_<level>
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for CMA3000 Tri-axis accelerometer, which supports Motion
detect, Measurement and Free fall modes. CMA3000 supports both I2C/SPI
bus for communication, currently the driver supports I2C based
communication.
Signed-off-by: NHemanth V <hemanthv@ti.com>
Reviewed-by: NJonathan Cameron <jic23@cam.ac.uk>
Reviewed-by: NSergio Aguirre <saaguirre@ti.com>
Reviewed-by: NShubhrajyoti <Shubhrajyoti@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Use <module>-y notation to specify list of objects comprising iforce
module and conditionally pull in USB and RS232 support.

Also remove custom compiler flags and rely on general makefile rules
for enabling warnings.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The proper way to specify multi-source object is to use <name>-y instead
of <name>-obj (which is deprecated) as it allows conditional inclusion
of modules in the list.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We already call serio_register_port() in ct82c710_probe(),
thus remove a redundant serio_register_port() in ct82c710_init().

Looks like this bug is introduced by
916d83cf
"Input: ct82c710 - convert to the new platform device interface"

[dtor@mail.ru: also move printk to where we register port]
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

serio_unregister_port() will call put_device() to free the memory.
Thus remove kfree(ams_delta_serio) after
serio_unregister_port(ams_delta_serio).
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

While reviewing various users of kernel memory allocation functions I came
across drivers/input/serio/hil_mlc.c::hil_mlc_register() and noticed that:

 - it calls kzalloc() but fails to check for a NULL return before use.
 - it makes several allocations and if one fails it doesn't free the
   previous ones.
 - It doesn't return -ENOMEM in the failed memory allocation case (it just
   crashes).

This patch corrects all of the above and also reworks the only caller of
this function that I could find
(drivers/input/serio/hp_sdc_mlc.c::hp_sdc_mlc_out()) so that it now checks
the return value of hil_mlc_register() and properly propagates it on
failure and I also restructured the code to remove some labels and goto's
to make it, IMHO nicer to read.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Tested-by: NHelge Deller <deller@gmx.de>
Acked-by: NHelge Deller <deller@gmx.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Instead of creating an exclusive thread to handle gameport events (which
happen rarely), let's switch to common workqueue. With the arrival
of concurrency-managed workqueue infrastructure we are not concerned
that our callers or callees also using workqueue (no deadlocks anymore)
and it should reduce total number of threads in the system.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Instead of creating an exclusive thread to handle serio events (which
happen rarely), let's switch to using common workqueue. With the arrival
of concurrency-managed workqueue infrastructure we are not concerned
that our callers or callees also using workqueue (no deadlocks anymore)
and it should reduce total number of threads in the system.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The kcalloc call for the object table is using sizeof(struct qt602240_data)
when it should be using sizeof(struct qt6602240_object), resulting in a larger
allocation than is required.
Signed-off-by: NChris Leech <christopher.leech@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

As pointed out by Oliver Neukum:
xpad->irq_in is currently submitted before xpad->bulk_out is allocated.
That however is a race, because the callback for irq_in can call
xpad360w_process_packet(), which will in turn submit the bulk URB.

This patch moves initialization for xpad->bulk_out earlier, so we can
ensure xpad->bulk_out is initialized before submitting urb.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Recent testing of this codepath showed that it wasn't working,
perhaps due to changes within the input layer. This fixes it.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Disable the recalibration guard where new recalibrations are triggered
if we detect a packet too soon after calibrating - we found that this
results in erroneous recalibrations, and if the recalibration failed
then the rest of our badness-detection code will request another.

Add a module option disabling all of the recalibration code, in case
an OLPC deployment thinks all of the workarounds we have are doing
more damage than good and wants to experiment with them all disabled.

Based on work by Paul Fox.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Based on work by Paul Fox.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>