mfd: Hook WM831x into build system

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/Kconfig

@@ -157,6 +157,16 @@ config MFD_WM8400
 	  the device, additional drivers must be enabled in order to use
 	  the functionality of the device.
 
+config MFD_WM831X
+	tristate "Support Wolfson Microelectronics WM831x PMICs"
+	select MFD_CORE
+	depends on I2C
+	help
+	  Support for the Wolfson Microelecronics WM831x PMICs.  This
+	  driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the
+	  functionality of the device.
+
 config MFD_WM8350
 	tristate
 

drivers/mfd/Makefile

@@ -15,6 +15,8 @@ obj-$(CONFIG_MFD_TC6387XB)	+= tc6387xb.o
 obj-$(CONFIG_MFD_TC6393XB)	+= tc6393xb.o
 
 obj-$(CONFIG_MFD_WM8400)	+= wm8400-core.o
+wm831x-objs			:= wm831x-core.o wm831x-irq.o wm831x-otp.o
+obj-$(CONFIG_MFD_WM831X)	+= wm831x.o
 wm8350-objs			:= wm8350-core.o wm8350-regmap.o wm8350-gpio.o
 obj-$(CONFIG_MFD_WM8350)	+= wm8350.o
 obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o