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>

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>

Program keyboard controller to generate a wake-up request on events and
on long key presses. It will not generate wake-up requests on timeouts
since driver code does not handle them.

This allows keyboard to wake-up OMAP from suspend.
Signed-off-by: NMike Turquette <mturquette@ti.com>
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Select correct interrupt line behaviour.
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Remove SYSCONFIG register configuration, omap hwmod framework will
use internal API to modify as required.

Other minor updates:

- Change a variable name from DEF to VAL, this represents a value
- Break line width to 80 characters
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Get mem and irq resources using platform helpers

 - platform_get_base
 - platform_get_irq
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for the keypad controller in the Scroll Key Encoder (SKE)
module on the Nomadik family and the DB8500 SoC.
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NSundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We should not try to call free_irq() when request_irq() failed.
Reported-by: NG, Manjunath Kondaiah <manjugk@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDzianis Kahanovich <mahatma@eu.by>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

mach-mmp needs to clear wake event in order to clear the keypad interrupt
Signed-off-by: NMark F. Brown <mark.brown314@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Signed-off-by: NMark F. Brown <mark.brown314@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

mach-mmp utilizes pxa27x_keypad code so we need to move header to
platform pxa directory.
Signed-off-by: NMark F. Brown <mark.brown314@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

This patch adds support for tnetv107x's on-chip keypad controller.
Signed-off-by: NCyril Chemparathy <cyril@ti.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

OMAP4 keyboard controller includes:
  - built-in scanning algorithm
  - debouncing feature

Driver implementation is based on matrix_keypad.c
Signed-off-by: NSyed Rafiuddin <rafiuddin.syed@ti.com>
Signed-off-by: NAbraham Arce <x0066660@ti.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

No need to call input_free_device() after input_unregister_device().
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Fix another compile breakage stemming from 987a6c02 ("Input: switch to
input_abs_*() access functions")
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

They've been introduced by 987a6c02 ("Input: switch to input_abs_*()
access functions") and they appear to be some kind of debug left-over.

[Dmitry Torokhov: these are my fault - I added XX prefixes in places where
 I wanted to do additional review of the code but failed to actually do
 that in these particular instances.]
Signed-off-by: NDaniel Mack <daniel@caiaq.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add an input driver for the keypad on STMPE I/O expanders.  This driver
uses the common support provided by the STMPE MFD driver.
Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Allow platform code to specify callbcks that will be invoked when
input device is opened or closed, allowing, for example, to enable
the device.
Signed-off-by: NShubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Change all call sites in drivers/input to not access the ABS axis
information directly anymore. Make them use the access helpers instead.

Also use input_set_abs_params() when possible.
Did some code refactoring as I was on it.
Signed-off-by: NDaniel Mack <daniel@caiaq.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The kpad structure is assigned to i2c client via i2s_set_clientdata()
at the end of adp5588_probe(), but in adp5588_gpio_add() we tried to
access it (via dev_get_drvdata! which is not nice at all) causing an
oops.

Let's pass pointer to kpad directly into adp5588_gpio_add() and
adp5588_gpio_remove() to avoid accessing driver data before it is
set up.

Also split out building of gpiomap into a separate function to
clear the logic.
Reported-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch allows exporting GPIO pins not used by the keypad itself
to be accessible from elsewhere.
Signed-off-by: NXiaolong Chen <xiao-long.chen@motorola.com>
Signed-off-by: NYuanbo Ye <yuan-bo.ye@motorola.com>
Signed-off-by: NTao Hu <taohu@motorola.com>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This patch adds support for keypad driver running on Samsung cpus. This
driver is tested on GONI and Aquila board using S5PC110 cpu.

[ch.naveen@samsung.com: tested on SMDK6410, SMDKC100, and SMDKV210]
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Tested-by: NNaveen Krishna Ch <ch.naveen@samsung.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Nokia RX51 board code (arch/arm/mach-omap2/board-rx51-peripherals.c)
defines a key map for the matrix keypad keyboard. The hardware seems to
use all of the 8 rows and 8 columns of the keypad, although not all
possible locations are used.

The TWL4030 supports keypads with at most 8 rows and 8 columns. Most keys
are defined with a row and column number between 0 and 7, except

        KEY(0xff, 2, KEY_F9),
        KEY(0xff, 4, KEY_F10),
        KEY(0xff, 5, KEY_F11),

which represent keycodes that should be emitted when entire row is
connected to the ground.  since the driver handles this case as if we
had an extra column in the key matrix. Unfortunately we do not allocate
enough space and end up owerwriting some random memory.
Reported-and-tested-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@kernel.org
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The name of platfrom device was changed and we need to make driver's
name match in order for it to bind to the device.
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/input/keyboard/Kconfig defines QT2160 while the corresponding
Makefile expects CONFIG_KEYBOARD_QT2160 as all other keyboard drivers
do. To keep this Makefile consistent rename the config-token from
CONFIG_QT2160 to CONFIG_KEYBOARD_QT2160.

The various defconfig files are left alone.
Reported-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This reverts commit 0b28bac5.

After adding x86_platform's detection for i8042 controller, we
don't need the force dependency on !X86_MRST any more

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NFeng Tang <feng.tang@intel.com>
LKML-Reference: <1278342202-10973-5-git-send-email-feng.tang@intel.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>

This reverts commit 685afae0.

After adding x86_platform's detection for i8042 controller, we
don't need the force dependency on !X86_MRST any more

Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NFeng Tang <feng.tang@intel.com>
LKML-Reference: <1278342202-10973-4-git-send-email-feng.tang@intel.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>

This adds support for MELPAS MCS5000/MSC5080 touch key controllers.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We reuse the "i" variable later on so if we goto fail3 or fail4
then "i" will be set to the wrong thing and cause a crash.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>