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>

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>

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>

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>

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>

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>

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>

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>

Some of the recent X86_MRST additions make some "select"s
conditional on X86_MRST but missed some related kconfig symbols,
causing:

drivers/built-in.o: In function `ps2_end_command':
(.text+0x257ab2): undefined reference to `i8042_check_port_owner'
drivers/built-in.o: In function `ps2_end_command':
(.text+0x257ae1): undefined reference to `i8042_unlock_chip'
drivers/built-in.o: In function `ps2_begin_command':
(.text+0x257b40): undefined reference to `i8042_check_port_owner'
drivers/built-in.o: In function `ps2_begin_command':
(.text+0x257b6f): undefined reference to `i8042_lock_chip'

when SERIO_I8042=m, SERIO_LIBPS2=y, KEYBOARD_ATKBD=y.

We need to make i8042 dependant upon !X86_MRST and allow deselecting
atkbd on Moorestown even when !CONFIG_EMBEDDED.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Moorestown does not have i8042 based keyboard controller, so give
an option to deselect i8042 for non-pc mid.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Tosa is now able to use generic matrix keypad driver instead of the deprecated
tosakbd.c, where CONFIG_KEYBOARD_TOSA_USE_EXT_KEYCODES is still useful.  Move
it to mach/Kconfig.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

This patch implements a simple Keypad driver that functions
as an I2C client. It handles key press events for keys
connected to TCA6416 I2C based IO expander.
Signed-off-by: NSriramakrishnan <srk@ti.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Update the Kconfig entry for the sh_keysc driver to
enable build on SH-Mobile ARM platforms.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Provided that now keyboards on these devices are fully supported by
generic GPIO based matrix keypad driver, mark these hardcoded and
difficult to maintain drivers as deprecated.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
Acked-by: NPavel Machek <pavel@ucw.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The IMX family of Application Processors is shipped with a Keypad Port
supported by this driver.

The peripheral can control up to an 8x8 matrix key pad where all the
scanning is done via software.  The hardware provides two interrupts:
one for key presses (KDI) and one for all key releases (KRI). There is
also a simple circuit for glitch reduction (said for synchronization)
made by two series of 3 D-latches clocked by the keypad-clock that
stabilize the interrupts sources. KDI and KRI are fired only if the
respective conditions are maintained for at last 4 keypad-clock cycle.

Since those circuits are poor for a correct debounce process (the
keypad-clock frequency is 32K and bounces longer than 94us are not
masked) the driver, when an interrupt arrives, samples the matrix
with a period of 10ms until the readins are stable for
IMX_KEYPAD_SCANS_FOR_STABILITY times (currently set at 3). After
getting stable result appropriate events are sent through the input
stack.

If some keys are maintained pressed, the driver continues to scan
the matrix with a longer period (60ms) to catch possible multiple
key presses without overloading the cpu. This process ends when all
keys are released.

This driver is tested to build in kernel or as a module and follow
the specification of Freescale Application processors:
i.MX25 i.MX27 i.MX31 i.MX35 i.MX51 especially tested on i.MX31.
Signed-off-by: NAlberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The ADP5587 is quite similar to the ADP5588 but features a greater I/O
voltage range and lacks the Dual Light Sensor Interface.  This new part
is also supported by this driver.
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>

Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This driver enables keypad support on DaVinci platforms. DM365 is the
only platform that uses this driver at the moment.
Signed-off-by: NMiguel Aguilar <miguel.aguilar@ridgerun.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This version only supports individual cells (no slide support yet).
The code has been tested on proprietary development ARM board, but
should work fine on other machines.
Signed-off-by: NRaphael Derosso Pereira <raphaelpereira@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Maxim MAX7359 is a I2C interfaced key switch controller which
provides microprocessors with management of up to 64 key switches.
This patch adds support for the MAX7359 key switch controller.
Signed-off-by: NKim Kyuwon <q1.kim@samsung.com>
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
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: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Driver for the keyboard hardware documented here:
	http://www.opencores.org/project,keyboardcontrollerSigned-off-by: NJavier Herrero <jherrero@hvsistemas.es>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add a driver for the keypad controller on TWL4030 family chips.
These support up to an 8x8 key matrix.  The TWL4030 multifunction
chips are mostly used on OMAP3 (or OMAP 2430) based boards.

[dtor@mail.ru: switch to matrix-keypad framework, fix changing
keymap from userspace]
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add keypad driver for the 4x4 keypad on an evaluation board based
on w90p910.
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

hil_kbd and hil_ptr look like twins so it makes sense to combine them
into a single driver.

[deller@gmx.de: add MODULE_ALIAS() entry for mouse]
Tested-by: NHelge Deller <deller@gmx.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Original patch by Marek Vasut, modified by Eric in:

1. use delayed work to simplify the debouncing
2. combine col_polarity/row_polarity into a single active_low field
3. use a generic bit array based XOR algorithm to detect key
   press/release, which should make the column assertion time
   shorter and code a bit cleaner
4. remove the ALT_FN handling, which is no way generic, the ALT_FN
   key should be treated as no different from other keys, and
   translation will be done by user space by commands like 'loadkeys'.
5. explicitly disable row IRQs and flush potential pending work,
   and schedule an immediate scan after resuming as suggested
   by Uli Luckas
6. incorporate review comments from many others

Patch tested on Littleton/PXA310 (though PXA310 has a dedicate keypad
controller, I have to configure those pins as generic GPIO to use this
driver, works quite well, though), and Sharp Zaurus model SL-C7x0
and SL-C1000.

[dtor@mail.ru: fix error unwinding path, support changing keymap
 from userspace]
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
Reviewed-by: NUli Luckas <u.luckas@road.de>
Reviewed-by: NRussell King <linux@arm.linux.org.uk>
Reviewed-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Hopefully it will reduce conflicts when merging patches.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

lm8323 is the keypad driver used in n810 device.

[akpm@linux-foundation.org: coding-style fixes]
[dtor@mail.ru: various cleanups]
Signed-off-by: NFelipe Balbi <felipe.balbi@nokia.com>
Reviewed-by: NTrilok Soni <soni.trilok@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This is a keyboard driver for the Cirrus Logic EP93xx keypad matrix
peripheral. This driver is based on the pxa27x_keypad driver.

[dtor@mail.ru: Plug in input_dev->keycode so keymap can be changed
		from userspace.]
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

X86_PC is the only remaining 'sub' architecture, so we dont need
it anymore.

This also cleans up a few spurious references to X86_PC in the
driver space - those certainly should be X86.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>