Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander

From http://www.analog.com/ADP5589:
The ADP5589 is an I/O port expander and keypad matrix decoder designed
for QWERTY type phones that require a large keypad matrix and expanded
I/O lines.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index dec090a..69badb4 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -32,6 +32,16 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called adp5588-keys.
 
+config KEYBOARD_ADP5589
+	tristate "ADP5589 I2C QWERTY Keypad and IO Expander"
+	depends on I2C
+	help
+	  Say Y here if you want to use a ADP5589 attached to your
+	  system I2C bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adp5589-keys.
+
 config KEYBOARD_AMIGA
 	tristate "Amiga keyboard"
 	depends on AMIGA