[media] media: blackfin: bfin_capture: set min_buffers_needed
authorLad, Prabhakar <prabhakar.csengg@gmail.com>
Sun, 8 Mar 2015 14:40:39 +0000 (11:40 -0300)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Thu, 2 Apr 2015 21:11:12 +0000 (18:11 -0300)
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@gmail.com>
Tested-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/platform/blackfin/bfin_capture.c

index 2c720bc..332f8c9 100644 (file)
@@ -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)