Hi,

The attached config doesn't build on 4.2.6, but changing it to the
following:

 VIDEO_V4L2_SUBDEV_API n -> y
+V4L2_FLASH_LED_CLASS n

does build.

Sorry, I lost the build error (currently building now with a good
config), But it's because in drivers/media/i2c/adv7604.c,
v4l2_subdev_get_try_format() is not defined.

-- Steve