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path: root/drivers/media/common/videobuf2/videobuf2-v4l2.c
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Diffstat (limited to 'drivers/media/common/videobuf2/videobuf2-v4l2.c')
-rw-r--r--drivers/media/common/videobuf2/videobuf2-v4l2.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 1244c246d0c4..78a841b83d41 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -332,10 +332,10 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
}
static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
- struct v4l2_buffer *b,
- const char *opname,
+ struct v4l2_buffer *b, bool is_prepare,
struct media_request **p_req)
{
+ const char *opname = is_prepare ? "prepare_buf" : "qbuf";
struct media_request *req;
struct vb2_v4l2_buffer *vbuf;
struct vb2_buffer *vb;
@@ -377,6 +377,9 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return ret;
}
+ if (is_prepare)
+ return 0;
+
if (!(b->flags & V4L2_BUF_FLAG_REQUEST_FD)) {
if (q->uses_requests) {
dprintk(1, "%s: queue uses requests\n", opname);
@@ -630,8 +633,10 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
*caps |= V4L2_BUF_CAP_SUPPORTS_USERPTR;
if (q->io_modes & VB2_DMABUF)
*caps |= V4L2_BUF_CAP_SUPPORTS_DMABUF;
+#ifdef CONFIG_MEDIA_CONTROLLER_REQUEST_API
if (q->supports_requests)
*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
+#endif
}
int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
@@ -656,7 +661,7 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
- ret = vb2_queue_or_prepare_buf(q, mdev, b, "prepare_buf", NULL);
+ ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
return ret ? ret : vb2_core_prepare_buf(q, b->index, b);
}
@@ -728,7 +733,7 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
- ret = vb2_queue_or_prepare_buf(q, mdev, b, "qbuf", &req);
+ ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
return ret;
ret = vb2_core_qbuf(q, b->index, b, req);