Input: add support for SuperH MigoR touchscreen

This is V2 of the MigoR touch screen driver. The chip we interface to
is unfortunately a custom designed microcontroller speaking some
undocumented protocol over i2c.

The board specific code is expected to register this device as an i2c
chip using struct i2c_board_info [] and i2c_register_board_info().

[dtor@mail.ru: don't enable touchscreen if there are no users]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 565ec71..2cb4df0 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -146,6 +146,17 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called penmount.
 
+config TOUCHSCREEN_MIGOR
+	tristate "Renesas MIGO-R touchscreen"
+	depends on SH_MIGOR && I2C
+	help
+	  Say Y here to enable MIGO-R touchscreen support.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called migor_ts.
+
 config TOUCHSCREEN_TOUCHRIGHT
 	tristate "Touchright serial touchscreen"
 	select SERIO