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| author |   Dafna Hirschfeld <dafna.hirschfeld@collabora.com> | 2020-09-22 13:33:57 +0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-09-27 11:34:28 +0200 |
| commit | 8524fa22fd2f49ca39834fe93c952ddac1c43750 (patch) | |
| tree | fe003b61a29aed21b622680ed80af22b29057fa2 /tools/perf/scripts/python | |
| parent | media: staging: rkisp1: remove atomic operations for frame sequence (diff) | |
| download | linux-dev-8524fa22fd2f49ca39834fe93c952ddac1c43750.tar.xz linux-dev-8524fa22fd2f49ca39834fe93c952ddac1c43750.zip | |
media: staging: rkisp1: isp: add a warning and debugfs var for irq delay
The signal RKISP1_CIF_ISP_FRAME is set when the ISP completes
outputting the frame to the next block in the pipeline.
In order to keep buffer synchronization we assume that the
RKISP1_CIF_ISP_V_START signal never arrives together with the
RKISP1_CIF_ISP_FRAME signal.
In case those signals arrive together then the code is not able to
tell if the RKISP1_CIF_ISP_FRAME signal relates to the frame of
the current v-start or the previous. This patch adds a WARN_ONCE
and a debugfs var to catch it.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions