This patch allows for exporting a dmabuf descriptor from soc_camera drivers.
Signed-off-by: Kazunori Kobayashi <kkobayas@xxxxxxxxxx>
---
drivers/media/platform/soc_camera/soc_camera.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index f4308fe..9d7b8ea 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -437,6 +437,19 @@ static int soc_camera_prepare_buf(struct file *file, void *priv,
return vb2_prepare_buf(&icd->vb2_vidq, b);
}
+static int soc_camera_expbuf(struct file *file, void *priv,
+ struct v4l2_exportbuffer *p)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+
+ /* videobuf2 only */
+ if (ici->ops->init_videobuf)
+ return -EINVAL;
+ else
+ return vb2_expbuf(&icd->vb2_vidq, p);
+}
+
/* Always entered with .host_lock held */
static int soc_camera_init_user_formats(struct soc_camera_device *icd)
{
@@ -2085,6 +2098,7 @@ static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = {
.vidioc_dqbuf = soc_camera_dqbuf,
.vidioc_create_bufs = soc_camera_create_bufs,
.vidioc_prepare_buf = soc_camera_prepare_buf,
+ .vidioc_expbuf = soc_camera_expbuf,
.vidioc_streamon = soc_camera_streamon,
.vidioc_streamoff = soc_camera_streamoff,
.vidioc_cropcap = soc_camera_cropcap,
--
1.8.1.2
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