[media] saa7134: add DMABUF support

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>

diff --git a/drivers/media/pci/saa7134/saa7134-empress.c b/drivers/media/pci/saa7134/saa7134-empress.c
index 56b932c..ca417a4 100644 (file)
--- a/drivers/media/pci/saa7134/saa7134-empress.c
+++ b/drivers/media/pci/saa7134/saa7134-empress.c
@@ -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;

diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index a63c136..7a42d3a 100644 (file)
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -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;