redonkable/alistair23-linux
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[media] saa7134: add DMABUF support

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Since saa7134 is now using vb2, there is no reason why we can't support
dmabuf for this driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-12-14 08:17:00 -02:00 committed by Mauro Carvalho Chehab
parent ff880348e7
commit 9f1830206d
2 changed files with 4 additions and 2 deletions
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3
drivers/media/pci/saa7134/saa7134-empress.c
View file

@ -189,6 +189,7 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_frequency = saa7134_g_frequency,
@ -286,7 +287,7 @@ static int empress_init(struct saa7134_dev *dev)
* transfers that do not start at the beginning of a page. A USERPTR
* can start anywhere in a page, so USERPTR support is a no-go.
*/
q->io_modes = VB2_MMAP | VB2_READ;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
q->drv_priv = &dev->ts_q;
q->ops = &saa7134_empress_qops;
q->gfp_flags = GFP_DMA32;

3
drivers/media/pci/saa7134/saa7134-video.c
View file

@ -1906,6 +1906,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
.vidioc_querystd = saa7134_querystd,
@ -2089,7 +2090,7 @@ int saa7134_video_init1(struct saa7134_dev *dev)
* USERPTR support is a no-go unless the application knows about these
* limitations and has special support for this.
*/
q->io_modes = VB2_MMAP | VB2_READ;
q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (saa7134_userptr)
q->io_modes |= VB2_USERPTR;
q->drv_priv = &dev->video_q;