[media] cec: adv7842: add cec support

Add CEC support to the adv7842 driver.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/i2c/Kconfig

@@ -230,6 +230,7 @@ config VIDEO_ADV7842
 	tristate "Analog Devices ADV7842 decoder"
 	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
 	select HDMI
+	select MEDIA_CEC_EDID
 	---help---
 	  Support for the Analog Devices ADV7842 video decoder.
 
@@ -239,6 +240,13 @@ config VIDEO_ADV7842
 	  To compile this driver as a module, choose M here: the
 	  module will be called adv7842.
 
+config VIDEO_ADV7842_CEC
+	bool "Enable Analog Devices ADV7842 CEC support"
+	depends on VIDEO_ADV7842 && MEDIA_CEC
+	---help---
+	  When selected the adv7842 will support the optional
+	  HDMI CEC feature.
+
 config VIDEO_BT819
 	tristate "BT819A VideoStream decoder"
 	depends on VIDEO_V4L2 && I2C