This adds support for AD5820 autofocus coil, found for example in
Nokia N900 smartphone.
Signed-off-by: NPavel Machek <pavel@ucw.cz>
Acked-by: NPali Rohár <pali.rohar@gmail.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>