frequency → iio Relation

File in drivers/frequency	Includes file in iio
adf4030 / iio_adf4030.h	iio.h
adf4368 / iio_adf4368.h	iio.h
adf4377 / iio_adf4377.h	iio.h
adf4377 / iio_adf4377.h	iio_types.h
adf4382 / iio_adf4382.h	iio.h
adf5611 / iio_adf5611.h	iio.h
adf5611 / iio_adf5611.h	iio_types.h
adf5902 / iio_adf5902.h	iio_types.h
admfm2000 / iio_admfm2000.h	iio.h