[PATCH v4 03/17] media: blackfin: bfin_capture: set min_buffers_needed

From: Lad Prabhakar
Date: Sun Mar 08 2015 - 10:43:35 EST

From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>

this patch sets the min_buffers_needed field of the vb2 queue
so that the vb2 core will make sure start_streaming() callback
is called only when we have minimum buffers queued.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
Acked-by: Scott Jiang <scott.jiang.linux@xxxxxxxxx>
Tested-by: Scott Jiang <scott.jiang.linux@xxxxxxxxx>
drivers/media/platform/blackfin/bfin_capture.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 2c720bc..332f8c9 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -986,6 +986,7 @@ static int bcap_probe(struct platform_device *pdev)
q->mem_ops = &vb2_dma_contig_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &bcap_dev->mutex;
+ q->min_buffers_needed = 1;

ret = vb2_queue_init(q);
if (ret)

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