... and we have few enough places using the latter to make it
simpler to do search and replace...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The UCB1400 driver IRQ probe code fails to find an interrupt if all
the interrupts in the range 0-31 are nonprobe-able. This patch
removes the check of the return value so interrupts above 31 can be
detected.

Tested on InHand Fingertip4 PXA270 board.
Signed-off-by: NVernon Sauder <vsauder@inhand.com>
Acked-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Since 43cc71ee, the platform modalias
is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable
"input" platform drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

two reasons:
1. GPIO namings and their mode definitions are conceptually not part
   of the PXA register definitions

2. this is actually a temporary move in the transition of PXA2xx to
   use MFP-alike APIs (as what PXA3xx is now doing), so that legacy
   code will still work and new code can be added in step by step
Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The WM97xx touch screen controllers can be used to generate a wakeup
event when the system is suspended. Provide a new core API call
wm97xx_set_suspend_mode() allowing machine drivers to enable this. If no
suspend_mode is provided then the touch panel will be powered down when
the system is suspended.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The touchscreen interrupt is driven by human input which can reasonably
be used to provide entropy.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

As well as clarifying the fact that the driver can cope if a second
interrupt occurs before the IRQ work is scheduled this also ensures
that calls to the machine irq_enable() are balanced, making that easier
to implement.  Normally this is redundant due to the interrupt disabling
but some unusal board configurations can trigger it.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Start cleaning up GPIO handling for OMAP5912 OSK board:

 - Initialize GPIOs using the cross-platform calls, not the old
   OMAP-private ones.

 - Move touchscreen setup out of ads7846 code into board-specfic
   setup code, where it belongs.

This doesn't depend on the patches to update OMAP to use the
gpiolib implementation framework.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NTony Lindgren <tony@atomide.com>

DMA on the stack is not allowed. The buffer must be kmalloced.
Signed-off-by: NOliver Neukum <oneukum@suse.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: NGraeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: NMike Arthur <mike.arthur@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: NGraeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: NMike Arthur <mike.arthur@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NLars Munch <lars@segv.dk>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: NGraeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: NMike Arthur <mike.arthur@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NLars Munch <lars@segv.dk>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: NGraeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: NMike Arthur <mike.arthur@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for the touchscreen controllers provided by Wolfson
Microelectronics WM97xx series chips in both polled and streaming
modes.

These drivers have been maintained out of tree since 2003. During
that time the driver the primary maintainer was Liam Girdwood and
a number of people have made contributions including Dmitry Baryshkov,
Stanley Cai, Rodolfo Giometti, Russell King, Marc Kleine-Budde,
Ian Molton, Vincent Sanders, Andrew Zabolotny, Graeme Gregory,
Mike Arthur and myself. Apologies to anyone I have omitted.
Signed-off-by: NLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: NGraeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: NMike Arthur <mike.arthur@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This updates the ads7846 driver to handle external vREF (required
on boards using ads7843 chips) without module parameters, and also
removes a needless variable with its associated bogus gcc warning.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/input/touchscreen/ads7846.c: In function 'ads7846_read12_ser':
drivers/input/touchscreen/ads7846.c:216: warning: 'sample' may be used uninitialized in this function
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Mostly in and around irq handlers.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: N"John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: NHolger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This header file exists only for some hacks to adapt alsa-driver
tree.  It's useless for building in the kernel.  Let's move a few
lines in it to sound/core.h and remove it.
With this patch, sound/driver.h isn't removed but has just a single
compile warning to include it.  This should be really killed in
future.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

This patch refactors the code in corgi_lcd.c moving it to the board
specific corgi and spitz files where appropriate instead of the
existing ifdef mess which hinders readability.

Fix spitz_get_hsync_len() to call get_hsync_invperiod so pxafb can be
compiled as a module.

The confusing variables which represent the inverse horizintal sync
period are renamed to "invperiod" consistently.

An incorrect comment in corgi_ts.c is also corrected.
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This stops the ads7846 driver from using dev->power.power_state; that field is
deprecated (overdue for removal) and the only reason to update it was to make
the /sys/devices/.../power/state files (now removed) work better.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Drop #include <linux/moduleparam.h> in files that also include
linux/module.h, since module.h includes moduleparam.h already.
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fix a buffer overflow in mutli-packet handling code.  The overflow can
only happen with eGalax devices and is even there very unlikely (only
non-report packet are affected any only when truncated after the first
byte).

Also changes the mutli-packet handling code not to drop unknown packets,
but rather just drop one byte.  This allows synchronizing on report packets
in the data stream.  It's required for some egalax devices to work at all.

Also remove the pointless 'flags' member of the device struct and set the
version number to 0.6, plus some minor cleanups.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Given the patch which simplifies the spi_sync calling convention, this one
updates the callers of that routine which tried using it according to the
previous specification.  (Most didn't.)
Signed-off-by: NMarc Pignat <marc.pignat@hevs.ch>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for GoTop Super_Q2/GogoPen/PenPower tablets to usbtouchscreen.
Protocol discovery was done by Yick Yan Lam.
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: NMauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Introduce freezer-friendly wrappers around wait_event_interruptible() and
wait_event_interruptible_timeout(), originally defined in <linux/wait.h>, to
be used in freezable kernel threads.  Make some of the freezable kernel
threads use them.

This is necessary for the freezer to stop sending signals to kernel threads,
which is implemented in the next patch.
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Acked-by: NPavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@nigel.suspend2.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NIlya Frolov <zeylie@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Convert from class_device to device for hwmon_device_register/unregister
Signed-off-by: NTony Jones <tonyj@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NMark M. Hoffman <mhoffman@lightlink.com>

Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Given that the code is not checking for signals it should
use uninterruptible sleep.
Signed-off-by: NRene Herman <rene.herman@gmail.com>
Acked-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

A reply of 0x0600 means all OK, 0x1501 means OK, but EEPROM empty.
The behavior with an empty EEPROM is the same as without one at all
so do not fail loading the driver.
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch fixes a nasty typo in usbtouchscreen driver. The typo
is inherited from the original mtouchusb. It used to make the input
subsytem to incorrectly report the physical device ids to userspace
that in turn is very confusing for, e.g. XInput hotplug facilities
in setups with multiple identical touchscreens.
Signed-off-by: NVladimir Shebordaev <vshebordaev@mail.ru>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for IdealTEK URTC1000 touchscreen controllers.

Documentation can be downloaded at:

	http://projects.tbmn.org/cgi-bin/trac.cgi/wiki/urtc-1000Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

These serial touchscreens are found on some Fujitsu lifebook
P-series laptops, and the B6210. Using this requires a new
version of inputattach and doing:

 inputattach -fjt /dev/ttyS0

Big thanks to Stephen Hemminger for testing it and making it
work on his B6210 laptop.
Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Pendown status from the PENIRQ pin is currently read only at the beginning
of a sample set. If the pen is lifted just after sampling has began then
sampled values become wrong.

This patch adds an optional platform penirq_recheck_delay attribute.  If
non-zero, samples are only reported to the input subsystem if PENIRQ is
still active that long after the samples taken.
Signed-off-by: NSemih Hazar <semih.hazar@indefia.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The ads7846 driver has support for filtering, but when the chip gets
deselected between samples this causes noise. This patch adds support
for an optional settling delay time, so that two consecutive samples
will be taken with the specified delay time apart.  This ensures that
the chip won't be deselected, so the noise won't appear.

Filtering can still be done, but will have less work to do since each
time a new sample is taken the same delay applies.
Signed-off-by: NSemih Hazar <semih.hazar@indefia.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves.  This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.

It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.

The patch causes all kernel threads to be nonfreezable by default (ie.  to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear.  Additionally, it updates documentation to
describe the freezing of tasks more accurately.

[akpm@linux-foundation.org: build fixes]
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Acked-by: NNigel Cunningham <nigel@nigel.suspend2.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch adds support for IRTOUCHSYSTEMS (or UNITOP) infrared touchscreens.

The touchscreen sends data in 8-byte packets.
BYTE 0 - unknown meaning, seen only one value: 0x54
BYTE 1 - unknown meaning, 3 lowest bits indicate touch state
        values seen: 0x81, 0x82 or 0x83
        bit 0 = set if the screen is touched and was not touched before (touch
        bit 1 = set if the screen is touched and was touched (dragging)
        bit 2 = set if the touch was ended (release)
BYTES 2 and 3 - X position, high-order-byte first, range = 0 to 0x0FFF
BYTES 4 and 5 - Y position, high-order-byte first, range = 0 to 0x0FFF
BYTE 6 - unknown meaning, seen only one value: 0xFF
BYTE 7 - unknown meaning, seen only one value: 0x00
Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

During the move from drivers/usb/input into drivers/input/touchscreen
Kconfig variables were shuffled a bit to use a new namespace
(CONFIG_TOUCHSCREEN) while usbtouchscreen was still using old ones.

Also noticed by Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>