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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 /drivers/staging/media/rkisp1/rkisp1-common.h | |
| parent | 21f4417263b6c87662dc7610ab0d88d23a70a90e (diff) | |
| download | linux-8524fa22fd2f49ca39834fe93c952ddac1c43750.tar.bz2 | |
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 'drivers/staging/media/rkisp1/rkisp1-common.h')
| -rw-r--r-- | drivers/staging/media/rkisp1/rkisp1-common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/media/rkisp1/rkisp1-common.h b/drivers/staging/media/rkisp1/rkisp1-common.h index 01a4d9bae982..45abacdbb664 100644 --- a/drivers/staging/media/rkisp1/rkisp1-common.h +++ b/drivers/staging/media/rkisp1/rkisp1-common.h @@ -326,6 +326,7 @@ struct rkisp1_debug { unsigned long outform_size_error; unsigned long img_stabilization_size_error; unsigned long inform_size_error; + unsigned long irq_delay; unsigned long mipi_error; unsigned long stats_error; unsigned long stop_timeout[2]; |