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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2015-05-25 12:34:28 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-06-05 06:35:41 -0300
commit171fe6d1270d535eae798e4b5acc9f5d25e6e17e (patch)
tree5c32ee3c736f071cbf42c85abf9f28f50dce7386 /drivers/staging/media/davinci_vpfe/vpfe_video.c
parent694f9963edd831e4ed6fdbcb7134525cf5715a79 (diff)
[media] media: davinci_vpfe: set minimum required buffers to three
this patch sets nbuffers to three or more and drops the unset member video_limit which just a copy paste from earlier driver. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/staging/media/davinci_vpfe/vpfe_video.c')
-rw-r--r--drivers/staging/media/davinci_vpfe/vpfe_video.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 06d48d5eb0a0..674419286a93 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -27,9 +27,6 @@
#include "vpfe.h"
#include "vpfe_mc_capture.h"
-/* minimum number of buffers needed in cont-mode */
-#define MIN_NUM_BUFFERS 3
-
static int debug;
/* get v4l2 subdev pointer to external subdev which is active */
@@ -1088,20 +1085,14 @@ vpfe_buffer_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
struct vpfe_fh *fh = vb2_get_drv_priv(vq);
struct vpfe_video_device *video = fh->video;
struct vpfe_device *vpfe_dev = video->vpfe_dev;
- struct vpfe_pipeline *pipe = &video->pipe;
unsigned long size;
v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue_setup\n");
size = video->fmt.fmt.pix.sizeimage;
- if (vpfe_dev->video_limit) {
- while (size * *nbuffers > vpfe_dev->video_limit)
- (*nbuffers)--;
- }
- if (pipe->state == VPFE_PIPELINE_STREAM_CONTINUOUS) {
- if (*nbuffers < MIN_NUM_BUFFERS)
- *nbuffers = MIN_NUM_BUFFERS;
- }
+ if (vq->num_buffers + *nbuffers < 3)
+ *nbuffers = 3 - vq->num_buffers;
+
*nplanes = 1;
sizes[0] = size;
alloc_ctxs[0] = video->alloc_ctx;