media: videobuf2: do not sync caches when we are allowed not to

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Skip ->prepare() or/and ->finish() cache synchronisation if
user-space requested us to do so (or when queue dma direction
permits us to skip cache syncs).

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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Sergey Senozhatsky 2020-05-14 18:01:47 +02:00 • committed by Mauro Carvalho Chehab

parent 38a417e88a

commit dcf3bfe7c7

1 changed files with 10 additions and 4 deletions

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drivers/media/common/videobuf2/videobuf2-core.c

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