staging:iio:dac:ad5446: allocate chip state with iio_dev and use iio_priv for access.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2 files changed