input: Add initial support for TWL6040 vibrator

Add twl6040_vibra as a child of MFD device twl6040_codec. This
implementation covers the PCM-to-PWM mode of TWL6040 vibrator
module.
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Tejun Heo <tj@kernel.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/misc/Kconfig

@@ -275,6 +275,17 @@ config INPUT_TWL4030_VIBRA
 	  To compile this driver as a module, choose M here. The module will
 	  be called twl4030_vibra.
 
+config INPUT_TWL6040_VIBRA
+	tristate "Support for TWL6040 Vibrator"
+	depends on TWL4030_CORE
+	select TWL6040_CORE
+	select INPUT_FF_MEMLESS
+	help
+	  This option enables support for TWL6040 Vibrator Driver.
+
+	  To compile this driver as a module, choose M here. The module will
+	  be called twl6040_vibra.
+
 config INPUT_UINPUT
 	tristate "User level driver support"
 	help

drivers/input/misc/Makefile

@@ -40,6 +40,7 @@ obj-$(CONFIG_INPUT_SGI_BTNS)		+= sgi_btns.o
 obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
 obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON)	+= twl4030-pwrbutton.o
 obj-$(CONFIG_INPUT_TWL4030_VIBRA)	+= twl4030-vibra.o
+obj-$(CONFIG_INPUT_TWL6040_VIBRA)	+= twl6040-vibra.o
 obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
 obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
 obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o

include/linux/i2c/twl.h

@@ -669,6 +669,14 @@ struct twl4030_codec_data {
 
 struct twl4030_vibra_data {
 	unsigned int	coexist;
+
+	/* twl6040 */
+	unsigned int vibldrv_res;	/* left driver resistance */
+	unsigned int vibrdrv_res;	/* right driver resistance */
+	unsigned int viblmotor_res;	/* left motor resistance */
+	unsigned int vibrmotor_res;	/* right motor resistance */
+	int vddvibl_uV;			/* VDDVIBL volt, set 0 for fixed reg */
+	int vddvibr_uV;			/* VDDVIBR volt, set 0 for fixed reg */
 };
 
 struct twl4030_audio_data {