[media] stk1160: add DMABUF support

Implement DMABUF exporting and importing.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/usb/stk1160/stk1160-v4l.c b/drivers/media/usb/stk1160/stk1160-v4l.c
index 749ad5603c9e93488adec2c4347d531a807c0cf5..4d313ed4c32e15ecd7b1d45b9f2f6909995029da 100644 (file)
--- a/drivers/media/usb/stk1160/stk1160-v4l.c
+++ b/drivers/media/usb/stk1160/stk1160-v4l.c
@@ -500,6 +500,7 @@ static const struct v4l2_ioctl_ops stk1160_ioctl_ops = {
        .vidioc_dqbuf         = vb2_ioctl_dqbuf,
        .vidioc_streamon      = vb2_ioctl_streamon,
        .vidioc_streamoff     = vb2_ioctl_streamoff,
+       .vidioc_expbuf        = vb2_ioctl_expbuf,
 
        .vidioc_log_status  = v4l2_ctrl_log_status,
        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
@@ -645,7 +646,7 @@ int stk1160_vb2_setup(struct stk1160 *dev)
 
        q = &dev->vb_vidq;
        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-       q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
+       q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
        q->drv_priv = dev;
        q->buf_struct_size = sizeof(struct stk1160_buffer);
        q->ops = &stk1160_video_qops;