From 12dc4e884b44a95ebd4da612a5f57a24e9a1930f Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Wed, 17 Mar 2021 12:34:57 +0000 Subject: [PATCH] staging/bcm2835-camera: Add support for DMABUFs DMABUFs are all handled by videobuf2, so there is no reason not to enable support for them. Note that this driver is still using the vmalloc allocator, so the buffers it allocates will not be compatible with the codec or ISP driver that require contiguous buffers. However this driver should be able to import the buffers allocated by them. Signed-off-by: Dave Stevenson --- drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -1453,6 +1453,7 @@ static const struct v4l2_ioctl_ops camer .vidioc_querybuf = vb2_ioctl_querybuf, .vidioc_qbuf = vb2_ioctl_qbuf, .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, .vidioc_enum_framesizes = vidioc_enum_framesizes, .vidioc_enum_frameintervals = vidioc_enum_frameintervals, .vidioc_g_parm = vidioc_g_parm, @@ -1934,7 +1935,7 @@ static int bcm2835_mmal_probe(struct pla q = &dev->capture.vb_vidq; memset(q, 0, sizeof(*q)); q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ | VB2_DMABUF; q->drv_priv = dev; q->buf_struct_size = sizeof(struct vb2_mmal_buffer); q->ops = &bm2835_mmal_video_qops;