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From: Lad Prabhakar <prabhakar.csengg@gmail.com>
To: Scott Jiang <scott.jiang.linux@gmail.com>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	adi-buildroot-devel@lists.sourceforge.net
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
	LMML <linux-media@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Subject: [PATCH v3 03/15] media: blackfin: bfin_capture: set min_buffers_needed
Date: Sat, 21 Feb 2015 18:39:49 +0000	[thread overview]
Message-ID: <1424544001-19045-4-git-send-email-prabhakar.csengg@gmail.com> (raw)
In-Reply-To: <1424544001-19045-1-git-send-email-prabhakar.csengg@gmail.com>

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

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>
---
 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)
-- 
2.1.0


  parent reply	other threads:[~2015-02-21 18:43 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-21 18:39 [PATCH v3 00/15] media: blackfin: bfin_capture enhancements Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 01/15] media: blackfin: bfin_capture: drop buf_init() callback Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 02/15] media: blackfin: bfin_capture: release buffers in case start_streaming() call back fails Lad Prabhakar
2015-02-21 18:39 ` Lad Prabhakar [this message]
2015-02-21 18:39 ` [PATCH v3 04/15] media: blackfin: bfin_capture: improve buf_prepare() callback Lad Prabhakar
2015-03-03 15:21   ` Hans Verkuil
2015-02-21 18:39 ` [PATCH v3 05/15] media: blackfin: bfin_capture: improve queue_setup() callback Lad Prabhakar
2015-03-03 14:13   ` Mauro Carvalho Chehab
2015-02-21 18:39 ` [PATCH v3 06/15] media: blackfin: bfin_capture: use vb2_fop_mmap/poll Lad Prabhakar
2015-03-03 10:14   ` Hans Verkuil
2015-02-21 18:39 ` [PATCH v3 07/15] media: blackfin: bfin_capture: use v4l2_fh_open and vb2_fop_release Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 08/15] media: blackfin: bfin_capture: use vb2_ioctl_* helpers Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 09/15] media: blackfin: bfin_capture: make sure all buffers are returned on stop_streaming() callback Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 10/15] media: blackfin: bfin_capture: return -ENODATA for *std calls Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 11/15] media: blackfin: bfin_capture: return -ENODATA for *dv_timings calls Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 12/15] media: blackfin: bfin_capture: add support for vidioc_create_bufs Lad Prabhakar
2015-02-21 18:39 ` [PATCH v3 13/15] media: blackfin: bfin_capture: add support for VB2_DMABUF Lad Prabhakar
2015-02-21 18:40 ` [PATCH v3 14/15] media: blackfin: bfin_capture: add support for VIDIOC_EXPBUF Lad Prabhakar
2015-02-21 18:40 ` [PATCH v3 15/15] media: blackfin: bfin_capture: set v4l2 buffer sequence Lad Prabhakar
2015-03-02  7:57 ` [PATCH v3 00/15] media: blackfin: bfin_capture enhancements Scott Jiang
2015-03-03  8:49   ` Hans Verkuil
2015-03-03  9:30     ` Lad, Prabhakar
2015-03-03  9:39       ` Hans Verkuil
2015-03-03  9:43         ` Lad, Prabhakar
2015-03-05  9:44           ` Scott Jiang
2015-03-05 10:26             ` Hans Verkuil
2015-03-07 16:22               ` Lad, Prabhakar
2015-03-07 16:35                 ` Hans Verkuil

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