The audio on hx4700 needs this to properly work.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NDmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Tested-by: NPaul Parsons <lost.distance@yahoo.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>