Input: add driver for keyboard on AAED-2000 development board (ARM)

The keyboard is connected via GPIOs to the processor, and scanned
using a column sample register. The hardware provides no debouncing
mechanism, so the state of the keys is read KBDSCAN_STABLE_COUNT
times before being reported to the input layer.

The status of the keys needs to be polled because there is no
interrupt hooked to the lines. A workqueue is used for this.

Signed-off-by: Nicolas Bellido Y Ortega <ml@acolin.be>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 81a333f73010..049f2f544e75 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -203,4 +203,15 @@ config KEYBOARD_OMAP
           To compile this driver as a module, choose M here: the
           module will be called omap-keypad.
 
+config KEYBOARD_AAED2000
+        tristate "AAED-2000 keyboard"
+        depends on MACH_AAED2000
+        default y
+        help
+          Say Y here to enable the keyboard on the Agilent AAED-2000
+          development board.
+
+          To compile this driver as a module, choose M here: the
+          module will be called aaed2000_kbd.
+
 endif