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[media] media: blackfin: use vb2_ops_wait_prepare/finish helper

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This patch drops driver specific wait_prepare() and
wait_finish() callbacks from vb2_ops and instead uses
the the helpers vb2_ops_wait_prepare/finish() provided
by the vb2 core, the lock member of the queue needs
to be initalized to a mutex so that vb2 helpers
vb2_ops_wait_prepare/finish() can make use of it.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-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>
This commit is contained in:
Prabhakar Lad 2014-11-26 19:42:31 -03:00 committed by Mauro Carvalho Chehab
parent 519694f94b
commit 4d655ca4d0
1 changed files with 3 additions and 14 deletions
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17
drivers/media/platform/blackfin/bfin_capture.c
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@ -349,18 +349,6 @@ static void bcap_buffer_cleanup(struct vb2_buffer *vb)
spin_unlock_irqrestore(&bcap_dev->lock, flags);
}
static void bcap_lock(struct vb2_queue *vq)
{
struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
mutex_lock(&bcap_dev->mutex);
}
static void bcap_unlock(struct vb2_queue *vq)
{
struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
mutex_unlock(&bcap_dev->mutex);
}
static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
@ -457,8 +445,8 @@ static struct vb2_ops bcap_video_qops = {
.buf_prepare = bcap_buffer_prepare,
.buf_cleanup = bcap_buffer_cleanup,
.buf_queue = bcap_buffer_queue,
.wait_prepare = bcap_unlock,
.wait_finish = bcap_lock,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.start_streaming = bcap_start_streaming,
.stop_streaming = bcap_stop_streaming,
};
@ -996,6 +984,7 @@ static int bcap_probe(struct platform_device *pdev)
q->ops = &bcap_video_qops;
q->mem_ops = &vb2_dma_contig_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &bcap_dev->mutex;
ret = vb2_queue_init(q);
if (ret)