The use of disable_irq inside the handler for the interrupt being
disabled has always been dangerous.  disable_irq should wait for that
handler to complete before returning -> deadlock.

For some reason this wasn't actually the case until 3aa551c9 was merged
but since this time, the ads7846 driver has deadlocked the system on
first interrupt.

Convert the driver to use the handler-safe _nosync variant.
Signed-off-by: NBen Nizette <bn@niasdigital.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The loop body was never executed, because the condition is
always false. Convert to for with more obvious condition.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

dev is leftover from b0ee0d3e
(Input: pc110pad - use no_pci_devices()).
Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
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>

This patch removes depreciated IRQF_SAMPLE_RANDOM flags from
ad7877 and ad7879 touchscreen drivers.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

PEN_{UP/DOWN} events are expected to be available soon after stopping
TSI auto measurement, but this is found not always be true. Work around
this by adding delay and simulating such an event (according to pen down
status bit).
Signed-off-by: NBin Yang <bin.yang@marvell.com>
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Bin did a lot of work on this driver, without his help, this driver
will not be possible.
Signed-off-by: NBin Yang <bin.yang@marvell.com>
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NBarry Carroll <baz8080@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

The commit 6902c0be that moved
driver registration out of kgameportd thread was incomplete and
did not add the code necessary to actually attach driver to
already registered devices, rectify that.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fix this build error when CONFIG_SERIO is not set
hp_sdc_rtc.c:691: undefined reference to `hp_sdc_request_timer_irq'
and so on..

"select should be used with care. select will force
a symbol to a value without visiting the dependencies."
Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The input core will add entropy to the pool so this flag is not
needed.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Noises can be introduced when LCD signals are being driven, some platforms
provide a signal to assist the synchronization of this sampling procedure.
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is no need to issue serialize_rcu() after adding a new handle
to the list of handles associated with the device because new events
will "see" the new handle in the list immediately. Remove it so we
can boot a little bit faster.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There are several DMI tables in the i8042 (keyboard) driver already, but
not one for the i8042.reset option.  This patch adds such an option.

Two users for this table are added as well, the MSI Wind U-100 and the LG
X110.  The MSI Wind also needs to be in the "don't trust the pnp data" for
the touchpad to work on my machine.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Some touchpads don't reset right the first time (MSI Wind U-100 for
example).  This patch will retry the reset up to 5 times.

In addition, on x86, we don't fail entire i8042 initialization if
controller reset fails in hope that keyboard port will still be
functional and user will still get a working keyboard. This is
especially important on netbooks.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Reported-by: NKenneth Crudup <kenny@panix.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Everyone adds their driver to the end of the list, hopefully if it is
in alphabetical order new drivers will spread out a bit and I can merge
them more easily.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

[randy.dunlap@oracle.com: don't use bus_id]
[dtor@mail.ru: locking and other fixups]
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

[dtor@mail.ru: locking and other fixups]
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <bryan.wu@analog.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

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

Mikrotik's Routerboard 532 has two builtin buttons, from which one
triggers a hardware reset. The other one is accessible through GPIO
pin 1. Sadly, this pin is being multiplexed with UART0 input, so
enabling it as interrupt source (as implied by the gpio-keys driver)
is not possible unless UART0 has been turned off. The later one though
is a rather bad idea as the Routerboard is an embedded device with
only a single serial port, so it's almost always used as serial
console device.

This patch adds a driver based on INPUT_POLLDEV, which disables the
UART and reconfigures GPIO pin 1 temporarily while reading the button
state.  This procedure works fine and has been tested as part of
another, unpublished driver for this device.
Signed-off-by: NPhil Sutter <n0-1@freewrt.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds a generic driver for rotary encoders connected to GPIO
pins of a system. It relies on gpiolib and generic hardware irqs. The
documentation that also comes with this patch explains the concept and
how to use the driver.
Signed-off-by: NDaniel Mack <daniel@caiaq.de>
Tested-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

On parisc machines, which don't have HIL, removing the hilkbd module
panics the kernel. Fix this by adding proper implementations for the
probe and remove functions to the parisc_driver structure.

A few functions were renamed to clean up the code and make it easier
readable.

Disable the MODULE_DEVICE_TABLE() macro on parisc since the kernel
module autoloader should instead prefer the hp_sdc driver which takes
care of full HIL support, including HIL mouse and HIL tablets.

[dtor@mail.ru: fix some section markups]
Signed-off-by: NHelge Deller <deller@gmx.de>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The volume up and down keys on the Fujitsu Siemens Amilo PA 1510 laptop
won't generate release events, so we have to do that. Use the same
way that is already used with other models.
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch implements accelerated touchscreen support for the Marvell
Zylonite development platform, supporting pen down interrupts and
continuous mode data transfers.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add BTN_TOUCH event reporting to ucb1400_ts and accelerated mainstone-wm97xx
touchscreen drivers. Together with previously posted similar patch for
wm97xx-core this will make all touchscreen drivers behave consistently wrt.
BTN_TOUCH.
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This should make no practical difference since the Mainstone can't be
SMP but it is more correct.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Android expects BTN_TOUCH events when pen state changes. Add BTN_TOUCH
event reporting to allow use of wm97xx touchscreen controller wiht
Android devices.
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Tested-by: NAlessio Sangalli <alesan@manoweb.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: ixp4xx - Fix qmgr_request_queue build failure
  crypto: api - Fix module load deadlock with fallback algorithms

There is another user of IXP4xx queue manager, fix it.
Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: don't allow setuid to succeed if the user does not have rt bandwidth
  sched_rt: don't start timer when rt bandwidth disabled

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: oprofile: don't set counter width from cpuid on Core2
  x86: fix init_memory_mapping() to handle small ranges

* 'tracing/mmiotrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 mmiotrace: fix race with release_kmmio_fault_page()
  x86 mmiotrace: improve handling of secondary faults
  x86 mmiotrace: split set_page_presence()
  x86 mmiotrace: fix save/restore page table state
  x86 mmiotrace: WARN_ONCE if dis/arming a page fails
  x86: add far read test to testmmiotrace
  x86: count errors in testmmiotrace.ko

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rcu: Teach RCU that idle task is not quiscent state at boot

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] fix lots of ARM __devexit sillyness
  [ARM] 5417/1: Set the correct cacheid for ARMv6 CPUs with ARMv7 style MMU
  [ARM] 5416/1: Use unused address in v6_early_abort
  [ARM] 5411/1: S3C64XX: Fix EINT unmask
  [ARM] at91: fix for Atmel AT91 powersaving
  [ARM] RiscPC: Fix etherh oops