The interrupt status registers should be read in row to avoid invalid data.

Alter "read" method for both bus options to allow reading several registers
in a row and make sure we read interrupt status registers properly.

Read sequence saves 50% of bus transactions compared to single register
reads. So use it also for the result registers, which are also located
in a row.

Also update copyright notice.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

spi_write() requires use of DMA-safe (cacheline aligned) buffers.
Also use the same buffers when reading data since to avoid extra
locking and potential memory allocation in spi_write_then_read().
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Allow driver to be used on Big Endian boxes.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

input_free_device() should be used if input_register_device() was not called
yet or if it failed.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The module device table for of_device_id should use "of" type.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

It adds device tree probe support for mma8450 driver.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NEric Miao <eric.miao@linaro.org>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We need to explicitly include module.h since some of its facilities
are used.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

According to the comments we want to call mutex_lock() here instead
of mutex_unlock().  That makes more sense.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We are testing the wrong variable here.  I believe tj9->input_dev
is always NULL at this point, so probe() will fail.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NChris Hudson <chudson@kionix.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This driver is registered as an input device. An IRQ is required in this
basic driver configuration.
Signed-off-by: NJoseph Lai <joseph_lai@wistron.com>
[Cleaned up PM_RUNTIME defines]
Signed-off-by: NAlan Cox <alan@linux.intel.com>
[dtor@mail.ru: consolidated PM methods, some code rearrangement]
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/input/.
This patch removes them.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NSammy He <r62914@freescale.com>
Signed-off-by: NEric Miao <eric.miao@linaro.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for PMIC8XXX power key driven over dedicated
KYPD_PWR_N pin.
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NTrilok Soni <tsoni@codeaurora.org>
Signed-off-by: NAnirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

As reported by Jean-Francois Dagenais, the wheel algorithm caused a
divide by zero exception due to missing variable pre-initialization.
In fact it turned out that the whole algorithm had several problems.
It is therefore replaced with something that is known working.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Tested-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add option to specify irqflags in platfrom data.
Also update copyright notice.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Tested-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fix two issues in the threshold and completion interrupt mask and unmask
functions. According to the AD714x datasheets the highest stage completion
interrupt should be enabled. Fix mask computation.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Tested-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add missing input name and set up parent devices so input devices will
show in proper places in sysfs tree.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Tested-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for encoders that have two detents per input signal period.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Acked-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Refactor state retrieval and event reporting in interrupt handler.
Remove a few empty lines.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Reviewed-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

If the channel_mask setup fails when configuring it through sysfs,
return the error code to the caller instead of claiming success.
Signed-off-by: NVille Syrjala <syrjala@sci.fi>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

In twl4030_pwrbutton_probe error path, free_irq() was using NULL rather than
the driver data as the data pointer so free_irq() wouldn't have matched.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Mouse gets "stuck" after restore of PV guest but buttons are in working
condition.

If driver has been configured for ABS coordinates at start it will get
XENKBD_TYPE_POS events and then suddenly after restore it'll start getting
XENKBD_TYPE_MOTION events, that will be dropped later and they won't get
into user-space.

Regression was introduced by hunk 5 and 6 of
5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db
("Input: xen-kbdfront - advertise either absolute or relative
coordinates").

Driver on restore should ask xen for request-abs-pointer again if it is
available. So restore parts that did it before 5ea5254.
Acked-by: NOlaf Hering <olaf@aepfle.de>
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
[v1: Expanded the commit description]
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: NLucas De Marchi <lucas.demarchi@profusion.mobi>

Some devices provide absolute axes with min/max of 0/0 (e.g. wacom's
ABS_MISC axis). Current uinput restrictions do not allow duplication of
these devices and require hacks in userspace to work around this.

If the kernel accepts physical devices with a min/max of 0/0, uinput
shouldn't disallow the same range.
Signed-off-by: NPeter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Copy 88pm860x platform data into different mfd_data structure for
onkey/touch/codec/power driver. So move the identification of
device node from those drivers to mfd driver.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: NAndres Salomon <dilinger@queued.net>
Acked-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/input is reserved for input core code and input handlers with
drivers belonging to one of the sub-directories.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Get rid of old users of of_platform_driver in arch/sparc.  Most
of_platform_driver users can be converted to use the platform_bus
directly.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The test here is reversed. It should be if (IS_ERR()) instead of
if (!IS_ERR()).
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The adxl34x SPI driver has what appears to be a typo referring to the
device as adx134x with the numeral 1 rather than letter l. This appears
to be an error so convert.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move to convert drivers to use dev_pm_ops rather than
bus specific ones in order to facilitate core development. Do this
conversion for adxl34x-spi.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move to convert drivers to use dev_pm_ops rather than
bus specific ones in order to facilitate core development. Do this
conversion for adxl34x-i2c.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move to convert drivers to use dev_pm_ops rather than
bus specific PM operations in order to facilitate core work. Do this
conversion for ad714x-spi.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move to convert drivers to use dev_pm_ops rather than
bus specific PM operations in order to facilitate core work. Do this
conversion for ad714x-i2c.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Instead of open-coding copying of data structures from userspace use
memdup_user() and strndup_user(). Note that this introduces change in
behavior because driver used to truncate 'phys' longer than 1024 bytes,
but now it will refuse to set 'phys' that long. Arguably trying to set
such 'phys' is suspect anyways.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The check for non-empty device name was botched since we tried to account
for extra space for the terminating zero at the same time. Convert to
kstrndup() to avoid this problem.
Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com>
Acked-by: NAristeu Rozanski <aris@ruivo.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>