Ezequiel Garcia be2fff6563 media: add helpers for memory-to-memory media controller ... A memory-to-memory pipeline device consists in three entities: two DMA engine and one video processing entities. The DMA engine entities are linked to a V4L interface. This commit add a new v4l2_m2m_{un}register_media_controller API to register this topology. For instance, a typical mem2mem device topology would look like this: Device topology - entity 1: source (1 pad, 1 link) type Node subtype V4L flags 0 pad0: Source -> "proc":1 [ENABLED,IMMUTABLE] - entity 3: proc (2 pads, 2 links) type Node subtype Unknown flags 0 pad0: Source -> "sink":0 [ENABLED,IMMUTABLE] pad1: Sink <- "source":0 [ENABLED,IMMUTABLE] - entity 6: sink (1 pad, 1 link) type Node subtype V4L flags 0 pad0: Sink <- "proc":0 [ENABLED,IMMUTABLE] [hans.verkuil@cisco.com: mark interface links as IMMUTABLE] Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>		2018-07-04 08:43:47 -04:00
..
Kconfig	media: Remove depends on HAS_DMA in case of platform dependency	2018-05-28 16:17:08 -04:00
Makefile
tuner-core.c
v4l2-async.c
v4l2-clk.c
v4l2-common.c
v4l2-compat-ioctl32.c
v4l2-ctrls.c	media: v4l2-ctrls.c: fix broken auto cluster handling	2018-07-04 08:33:32 -04:00
v4l2-dev.c	media: add helpers for memory-to-memory media controller	2018-07-04 08:43:47 -04:00
v4l2-device.c	media: mark entity-intf links as IMMUTABLE	2018-07-04 08:40:49 -04:00
v4l2-dv-timings.c
v4l2-event.c	Convert v4l2 event to struct_size	2018-06-12 16:19:22 -07:00
v4l2-fh.c
v4l2-flash-led-class.c	treewide: devm_kzalloc() -> devm_kcalloc()	2018-06-12 16:19:22 -07:00
v4l2-fwnode.c
v4l2-ioctl.c	media: v4l2-ioctl.c: use correct vb2_queue lock for m2m devices	2018-07-04 08:00:53 -04:00
v4l2-mc.c
v4l2-mem2mem.c	media: add helpers for memory-to-memory media controller	2018-07-04 08:43:47 -04:00
v4l2-subdev.c	media: v4l2-core: push taking ioctl mutex down to ioctl handler	2018-05-28 16:31:44 -04:00
v4l2-trace.c
videobuf-core.c
videobuf-dma-contig.c
videobuf-dma-sg.c	treewide: Use array_size() in vzalloc()	2018-06-12 16:19:22 -07:00
videobuf-vmalloc.c