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authorArchit Taneja <archit@ti.com>2014-01-15 08:31:51 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-04-07 09:41:37 -0300
commitdb476163da7b53433ea1c4080625fa56daf6fdda (patch)
tree424ccf7708da9b7fffbb688dc891bd0a58d10402 /drivers/media
parentc9af5c154233446e8b97a1febef80e8afc568ab1 (diff)
downloadlinux-db476163da7b53433ea1c4080625fa56daf6fdda.tar.bz2
[media] v4l: ti-vpe: Make sure in job_ready that we have the needed number of dst_bufs
VPE has a ctrl parameter which decides how many mem to mem transactions the active job from the job queue can perform. The driver's job_ready() made sure that the number of ready source buffers are sufficient for the job to execute successfully. But it didn't make sure if there are sufficient ready destination buffers in the capture queue for the VPE output. If the time taken by VPE to process a single frame is really slow, then it's possible that we don't need to imply such a restriction on the dst queue, but really fast transactions(small resolution, no de-interlacing) may cause us to hit the condition where we don't have any free buffers for the VPE to write on. Add the extra check in job_ready() to make sure we have the sufficient amount of destination buffers. Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/ti-vpe/vpe.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 7a77a5b7a075..f3143ac424a7 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -887,6 +887,9 @@ static int job_ready(void *priv)
if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < needed)
return 0;
+ if (v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) < needed)
+ return 0;
+
return 1;
}