Introduce CONFIG_CHECK_SIGNATURE to control inclusion of check_signature()
and avoid problems on platforms that don't have readb().

Let the few legacy (ISA || PCI || X86) drivers that need check_signature()
select CONFIG_CHECK_SIGNATURE.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Switch to using input-polldev skeleton instead of implementing
polling loop by itself.

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

Add support to wistron_btns for leds that come with the multimedia keys.
Mail and wifi leds are supported, on laptops which have them.

Depending on the laptop, wifi subsystem may control just the led, or both
the led and the wifi card. Wifi led interface is activated only for the
former type of laptops, as the latter type is already managed. Leds are
controled by the interface in /sys/class/leds.

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: move input-polldev to drivers/input
  Input: i8042 - add ULI EV4873 to noloop list
  Input: i8042 - add ASUS P65UP5 to the noloop list
  Input: usbtouchscreen - fix fallout caused by move from drivers/usb

To work around deficiences in Kconfig that allows to "select"
a symbol without automatically selecting all dependencies for
that symbol move input-polldev from drivers/input/misc to
drivers/input thus removing extra dependency on CONFIG_INPUT_MISC.

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

stuff that does select USB should depend on USB_ARCH_HAS_HCD, or we'll
end up with unbuildable configs.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This will allow concentrating all input devices in one place
in {menu|x|q}config.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

input-polldev provides a skeleton for supporting simple input
devices that need to be periodically scanned or polled to
detect changes in their state.

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

Tested on Cobalt Qube2.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>