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| author | Sumit Semwal <sumit.semwal@ti.com> | 2012-06-14 17:37:37 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-11-25 23:11:12 +0400 |
| commit | c538404869b69db543ce23cf041192c192a65330 (patch) | |
| tree | 9566b4a8e2472a8ed17bb99674dec4bb6f48a688 /drivers/media/v4l2-core/Kconfig | |
| parent | 4b9c1cb641c466cd3b366132017da3c8ab9d540c (diff) | |
| download | linux-c538404869b69db543ce23cf041192c192a65330.tar.xz | |
[media] v4l: vb2: add support for shared buffer (dma_buf)
This patch adds support for DMABUF memory type in videobuf2. It calls relevant
APIs of dma_buf for v4l reqbuf / qbuf / dqbuf operations.
For this version, the support is for videobuf2 as a user of the shared buffer;
so the allocation of the buffer is done outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
[original work in the PoC for buffer sharing]
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/v4l2-core/Kconfig')
| -rw-r--r-- | drivers/media/v4l2-core/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig index 0c54e19d9944..2e787ccbbcd5 100644 --- a/drivers/media/v4l2-core/Kconfig +++ b/drivers/media/v4l2-core/Kconfig @@ -59,6 +59,7 @@ config VIDEOBUF_DVB # Used by drivers that need Videobuf2 modules config VIDEOBUF2_CORE + select DMA_SHARED_BUFFER tristate config VIDEOBUF2_MEMOPS |