]> git.karo-electronics.de Git - linux-beck.git/commit
[media] v4l: vb2-dma-contig: add support for scatterlist in userptr mode
authorTomasz Stanislawski <t.stanislaws@samsung.com>
Thu, 14 Jun 2012 13:37:42 +0000 (10:37 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Sun, 25 Nov 2012 19:12:03 +0000 (17:12 -0200)
commite15dab752d4c588544ccabdbe020a7cc092e23c8
tree3d8c754781eed6607d12af4b92c0403d6a6ae58a
parent40d8b7669ba352c30179c0deee8ce281fce99429
[media] v4l: vb2-dma-contig: add support for scatterlist in userptr mode

This patch introduces usage of dma_map_sg to map memory behind
a userspace pointer to a device as dma-contiguous mapping.
This patch contains some of the code kindly provided by Marek Szyprowski
<m.szyprowski@samsung.com> and Kamil Debski <k.debski@samsung.com> and Andrzej
Pietrasiewicz <andrzej.p@samsung.com>. Kind thanks for bug reports from Laurent
Pinchart <laurent.pinchart@ideasonboard.com> and Seung-Woo Kim
<sw0312.kim@samsung.com>.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/v4l2-core/videobuf2-dma-contig.c