The data_year_param struct is never modified, so lets constify it.
This permit to remove cast since of_device_id is const also.
Signed-off-by: NLABBE Corentin <clabbe.montjoie@gmail.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>