Messages in this thread Patch in this message | | | From | Helen Koike <> | Subject | [PATCH] media: staging: rkisp1: cap: fix timeout when stopping the stream | Date | Fri, 6 Nov 2020 20:02:36 -0300 |
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The dma engine should be stopped first. The driver waits for an interrupt to stop the stream in a known state after a frame. If rkisp1_cap_stream_disable() is called after stopping the rest of the pipeline, then most likely the interrupt won't arrive, we'll get a timeout and debugfs variables mp_stop_timeout or sp_stop_timeout will be incremented.
Fixes: 37db540bb9d1f ("media: staging: rkisp1: cap: refactor enable/disable stream to allow multistreaming") Signed-off-by: Helen Koike <helen.koike@collabora.com> --- drivers/staging/media/rkisp1/rkisp1-capture.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c index 6d2fd27970f28..b81235afd0534 100644 --- a/drivers/staging/media/rkisp1/rkisp1-capture.c +++ b/drivers/staging/media/rkisp1/rkisp1-capture.c @@ -895,6 +895,8 @@ static void rkisp1_pipeline_stream_disable(struct rkisp1_capture *cap) { struct rkisp1_device *rkisp1 = cap->rkisp1; + rkisp1_cap_stream_disable(cap); + /* * If the other capture is streaming, isp and sensor nodes shouldn't * be disabled, skip them. @@ -907,8 +909,6 @@ static void rkisp1_pipeline_stream_disable(struct rkisp1_capture *cap) v4l2_subdev_call(&rkisp1->resizer_devs[cap->id].sd, video, s_stream, false); - - rkisp1_cap_stream_disable(cap); } /* -- 2.29.2
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