I'm far from sure what the best way to handle this particular
part is, so have (I think) done the absolute minimum to change
it to the new interface.

V2: Trivial constification of device name.
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>