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

This variable is not used outside of the module so we should mark it
as static.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Update the KEYSC driver to make use of threaded IRQs with IRQF_ONESHOT
to improve interrupt latency. The driver is using udelay() in the ISR
to make sure the hardware has stabilized. Without using interrupt threads
this delay may affect the latency of the rest of the system.

Also pass dev_name() as string for /proc/interrupts.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Convert the KEYSC driver from MSTP bit control through a magic clock
string to making use of Runtime PM.

Also, update the system suspend/resume callbacks to drop the Runtime
PM reference in the case of wakeup disabled.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add ghost key filtering support for the Nvidia Tegra matrix keyboard.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Reviewed-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

In current implementation, 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>

Adding the necessary MODULE_DEVICE_TABLE() information allows the
driver to be automatically loaded by udev
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch allows to set a device name which helps distinguishing several
gpio-keys devices.
Signed-off-by: NAlexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

With this patch you can setup a group of GPIOs representing a specific
position on an EV_ABS axis.
Signed-off-by: NAlexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We should first check whether platform data is NULL or not, before
dereferencing it to get the keymap.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NShubhrajyoti D <a0393217@india.ti.com>
Acked-by: NAxel Lin <axel.lin@gmail.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>

We should return IRQ_NONE from interrupt handler in case keyboard
does not report DATA_AVAIL condition.
Signed-off-by: NRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Scripted with coccinelle.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Also rearrange driver structure initializer a bit.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Extend the tca6416 driver to use enable_irq_wake() and disable_irq_wake()
in the suspend/resume hooks.

This makes it possible to wake up from suspend-to-ram using a tca6416 key
on the sh7372 mackerel board.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The AT42QT1070 QTouch sensor supports up to 7 keys.

The driver has been tested on Atmel AT91SAM9M10-G45-EK board, and it
 should work fine on other platforms.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The MCS50XX series has a HW bug that requires explicit chip power down.
If chip is not powered down before shutting the system down the control
pins (powerup, interrupt) are pulled up and residue current continues
flowing into the chips making them continue consuming power.
Signed-off-by: NHeungjun Kim <riverful.kim@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This adds support for system-level suspend/resume to the driver.
Signed-off-by: NHeungjun Kim <riverful.kim@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Enable Runtime PM functionality in OMAP4 driver based on the following
assumptions:

- keyboard controller in wakeup domain so it is always on and power
  impact is minimal;
- in OMAP4 the device control is at module/device level and ick/fclk
  level control is difficult so cutting of clocks will prevent
  interrupts.
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NShubhrajyoti D <shubhrajyoti@ti.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 ops to facilitate core work. Do this conversion for max7359.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There is a general move away from bus specific PM operations to using
dev_pm_ops in order to facilicate core improvements. Update lm8323 to
the new model.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add Fn keymap support to allow for internal processing of Fn keys.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Correct key mapping for Left Meta key.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fix build error introduced by variable name change.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for the internal matrix keyboard controller for
Nvidia Tegra platforms.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Reviewed-by: NTrilok Soni <tsoni@codeaurora.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The driver does not require hardirq context and can work with threaded
interrupts as well, so let's switch to request_any_context_irq which
will select the context that is available for us.
Signed-off-by: NPhilippe Langlais <philippe.langlais@stericsson.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.

This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel.  A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).

Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.
Reviewed-by: NIngo Molnar <mingo@elte.hu>
Acked-by: NDavid Woodhouse <david.woodhouse@intel.com>
Signed-off-by: NDavid Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

We should use IS_ERR() when checking whether clk_get() succeeded or
not since it returns errors by encoding error codes with ERR_PTR().
Signed-off-by: NJamie Iles <jamie@jamieiles.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The only platform using this driver (mach-aaec2000) is no longer in
the kernel so remove the driver.
Signed-off-by: NJamie Iles <jamie@jamieiles.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

There was a semi-colon missing and it broke the compile.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for the keypad controller module found on the
TC3589X devices. This driver default adds the support for
TC35893 device.
Signed-off-by: NSundar Iyer <sundar.iyer@stericsson.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
[Some minor fixups for compilation]
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>

Most keypad drivers make use of the <linux/input/matrix_keypad.h>
defined macros, structures and inline functions.

Convert omap-keypad driver to use those as well, as suggested by a
compile time warning, hardcoded into the OMAP <palt/keypad.h>.

Created against linux-2.6.37-rc5.
Tested on Amstrad Delta.
Compile tested with omap1_defconfig and omap2plus_defconfig shrinked to
board-h4.
Signed-off-by: NJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Reviewed-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NTony Lindgren <tony@atomide.com>

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>

The existing gpio-keys driver can be usable only for GPIO lines with
interrupt support. Several devices have buttons connected to a GPIO
line which is not capable to generate interrupts. This patch adds a
new input driver using the generic GPIO layer and the input-polldev
to support such buttons.

[Ben Gardiner <bengardiner@nanometrics.ca: fold code to use more
 of the original gpio_keys infrastructure; cleanups and other
 improvements.]
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Signed-off-by: NBen Gardiner <bengardiner@nanometrics.ca>
Tested-by: NBen Gardiner <bengardiner@nanometrics.ca>
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>

Many of the IBM Terminal keyboards from the 1980s and early 1990s communicate
using a protocol similar, but not identical to the AT keyboard protocol.
(Models known to be like this include 6110344, 6110668, 1390876, 1386887, and
possibly others.)

When the connector is rewired or adapter to an AT-DIN or PS/2 connector, they
can be connected to a standard PC, with three caveats:

a) They can only use scancode set 3; requests to use anything else are
quietly ignored.
b) The AT Command to request Make, Break and Repeat codes is not properly
interpreted.
c) The top function keys on a 122 key keyboard, and the arrow/edit keys in
the middle of the board send non-standard scancodes.

C) is easily taken care of in userspace, by use of setkeycodes
B) can be taken care of by a userspace hack (that makes the kernel complain
in dmesg)
A) is fixable in theory, but on the keyboard i tested on (6110668), it seems
to be detected unoverridably as Set 2, causing userspace oddities that make
it harder to fix C).

Enclosed is a small patch to the kernel that fixes A) and B) in the kernel,
making it much easier to fix C) in userspace. It adds a single kernel
command line parameter that overrides the detection that sets these boards
as set 2, and instead of sending the Make-break-repeat command to the
keyboard, it sends the make-break command, which is properly recognized by
these keyboards. Software level key repeating seems to make up for the lack
of hardware repeat codes perfectly.

Without manually setting the command line parameter (tentatively named
atkbd.terminal), this code has no effect, and the driver works exactly as
before.

See also:

http://www.seasip.info/VintagePC/ibm_1390876.html
http://www.seasip.info/VintagePC/ibm_6110344.html
http://geekhack.org/showwiki.php?title=Island:7306Signed-off-by: NErika Quinn <erikas.aubade@gmail.com>
Signed-off-by: NBenjamin LaHaise <bcrl@kvack.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Unify adp5588-gpio and adp5588-keys common header defines (as per Andrew
Morton request). For consistency, move remaining defines and prefix
accordingly.

No functional changes.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The ctrl_xxx routines are deprecated, switch over to the __raw_xxx
versions.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

KBUILD_MODNAME normalizes "-" to "_".  This is non-obvious and results in
the id name for ADP5588 being "adp5588_keys" while the other supported id
is "adp5587-keys".  So avoid this define and use an explicit string as the
id name.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>