Use the mutex api instead of renaming the calls for this
driver.
Signed-off-by: NDavidlohr Bueso <dbueso@suse.de>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab+huawei@kernel.org>