[PATCH v2 07/11] media: s5p-tv: use vb2_ops_wait_prepare/finish helper

From: Lad, Prabhakar
Date: Wed Nov 26 2014 - 17:43:44 EST


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@xxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
---
drivers/media/platform/s5p-tv/mixer_video.c | 21 +++------------------
1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
index b4d2696..72d4f2e 100644
--- a/drivers/media/platform/s5p-tv/mixer_video.c
+++ b/drivers/media/platform/s5p-tv/mixer_video.c
@@ -926,22 +926,6 @@ static void buf_queue(struct vb2_buffer *vb)
mxr_dbg(mdev, "queuing buffer\n");
}

-static void wait_lock(struct vb2_queue *vq)
-{
- struct mxr_layer *layer = vb2_get_drv_priv(vq);
-
- mxr_dbg(layer->mdev, "%s\n", __func__);
- mutex_lock(&layer->mutex);
-}
-
-static void wait_unlock(struct vb2_queue *vq)
-{
- struct mxr_layer *layer = vb2_get_drv_priv(vq);
-
- mxr_dbg(layer->mdev, "%s\n", __func__);
- mutex_unlock(&layer->mutex);
-}
-
static int start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct mxr_layer *layer = vb2_get_drv_priv(vq);
@@ -1040,8 +1024,8 @@ static void stop_streaming(struct vb2_queue *vq)
static struct vb2_ops mxr_video_qops = {
.queue_setup = queue_setup,
.buf_queue = buf_queue,
- .wait_prepare = wait_unlock,
- .wait_finish = wait_lock,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
.start_streaming = start_streaming,
.stop_streaming = stop_streaming,
};
@@ -1122,6 +1106,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
.ops = &mxr_video_qops,
.min_buffers_needed = 1,
.mem_ops = &vb2_dma_contig_memops,
+ .lock = &layer->mutex,
};

return layer;
--
1.9.1

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