Input: add MELFAS mms114 touchscreen driver

This is a initial driver for new touchscreen chip mms114 of MELFAS.
It uses I2C interface and supports 10 multi touch.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/Kconfig

@@ -369,6 +369,18 @@ config TOUCHSCREEN_MCS5000
 	  To compile this driver as a module, choose M here: the
 	  module will be called mcs5000_ts.
 
+config TOUCHSCREEN_MMS114
+	tristate "MELFAS MMS114 touchscreen"
+	depends on I2C
+	help
+	  Say Y here if you have the MELFAS MMS114 touchscreen controller
+	  chip in your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mms114.
+
 config TOUCHSCREEN_MTOUCH
 	tristate "MicroTouch serial touchscreens"
 	select SERIO

drivers/input/touchscreen/Makefile

@@ -38,6 +38,7 @@ obj-$(CONFIG_TOUCHSCREEN_MAX11801)	+= max11801_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MC13783)	+= mc13783_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MCS5000)	+= mcs5000_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MIGOR)		+= migor_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MMS114)	+= mms114.o
 obj-$(CONFIG_TOUCHSCREEN_MTOUCH)	+= mtouch.o
 obj-$(CONFIG_TOUCHSCREEN_MK712)		+= mk712.o
 obj-$(CONFIG_TOUCHSCREEN_HP600)		+= hp680_ts_input.o

include/linux/i2c/mms114.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#ifndef __LINUX_MMS114_H
+#define __LINUX_MMS114_H
+
+struct mms114_platform_data {
+	unsigned int x_size;
+	unsigned int y_size;
+	unsigned int contact_threshold;
+	unsigned int moving_threshold;
+	bool x_invert;
+	bool y_invert;
+
+	void (*cfg_pin)(bool);
+};
+
+#endif	/* __LINUX_MMS114_H */