V4L/DVB (3661): Add wm8739 stereo audio ADC i2c driver

Add support for the Wolfson Microelectronics WM8739
stereo A/D converter from the ivtv driver.
Many thanks to Takahiro Adachi for writing the original driver.

Signed-off-by: Takahiro Adachi <tadachi@tadachi-net.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 730d816..e19c403 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -343,15 +343,25 @@
 	  module will be called cs53l32a
 
 config VIDEO_WM8775
-	tristate "Wolfson Microelectronics WM8775 audio ADC"
+	tristate "Wolfson Microelectronics WM8775 audio ADC with input mixer"
 	depends on VIDEO_DEV && I2C && EXPERIMENTAL
 	---help---
-	  Support for the Wolfson Microelectronics WM8775
-	  high performance stereo A/D Converter.
+	  Support for the Wolfson Microelectronics WM8775 high
+	  performance stereo A/D Converter with a 4 channel input mixer.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called wm8775
 
+config VIDEO_WM8739
+	tristate "Wolfson Microelectronics WM8739 stereo audio ADC"
+	depends on VIDEO_DEV && I2C && EXPERIMENTAL
+	---help---
+	  Support for the Wolfson Microelectronics WM8739
+	  stereo A/D Converter.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wm8739
+
 source "drivers/media/video/cx25840/Kconfig"
 
 config VIDEO_SAA711X