[media] MFD: WL1273 FM Radio: MFD driver for the FM radio

This is the core of the WL1273 FM radio driver, it connects
the two child modules. The two child drivers are
drivers/media/radio/radio-wl1273.c and sound/soc/codecs/wl1273.c.

The radio-wl1273 driver implements the V4L2 interface and communicates
with the device. The ALSA codec offers digital audio, without it only
analog audio is available.

Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3a1493b..05ccab6 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -606,6 +606,16 @@
 	  VIA VX855/VX875 south bridge. You will need to enable the vx855_spi
 	  and/or vx855_gpio drivers for this to do anything useful.
 
+config MFD_WL1273_CORE
+	tristate
+	depends on I2C
+	select MFD_CORE
+	default n
+	help
+	  This is the core driver for the TI WL1273 FM radio. This MFD
+	  driver connects the radio-wl1273 V4L2 module and the wl1273
+	  audio codec.
+
 endif # MFD_SUPPORT
 
 menu "Multimedia Capabilities Port drivers"