Input: add driver support for MAX8997-haptic

The MAX8997-haptic function can be used to control motor. User can
control the haptic driver by using force feedback framework.

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/misc/Kconfig

@@ -134,6 +134,18 @@ config INPUT_MAX8925_ONKEY
 	  To compile this driver as a module, choose M here: the module
 	  will be called max8925_onkey.
 
+config INPUT_MAX8997_HAPTIC
+	tristate "MAXIM MAX8997 haptic controller support"
+	depends on HAVE_PWM && MFD_MAX8997
+	select INPUT_FF_MEMLESS
+	help
+	  This option enables device driver support for the haptic controller
+	  on MAXIM MAX8997 chip. This driver supports ff-memless interface
+	  from input framework.
+
+	  To compile this driver as module, choose M here: the
+	  module will be called max8997-haptic.
+
 config INPUT_MC13783_PWRBUTTON
 	tristate "MC13783 ON buttons"
 	depends on MFD_MC13783

drivers/input/misc/Makefile

@@ -31,6 +31,7 @@ obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
 obj-$(CONFIG_INPUT_KXTJ9)		+= kxtj9.o
 obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
 obj-$(CONFIG_INPUT_MAX8925_ONKEY)	+= max8925_onkey.o
+obj-$(CONFIG_INPUT_MAX8997_HAPTIC)	+= max8997_haptic.o
 obj-$(CONFIG_INPUT_MC13783_PWRBUTTON)	+= mc13783-pwrbutton.o
 obj-$(CONFIG_INPUT_MMA8450)		+= mma8450.o
 obj-$(CONFIG_INPUT_MPU3050)		+= mpu3050.o