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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2024-10-10 15:33:17 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2024-11-07 11:05:57 +0300 |
| commit | d0fef6de4f1b957e35a05a5ba4aab2a2576d6686 (patch) | |
| tree | c0aa4961fef1282b3e199afd6a54df1053d94d6c /tools/perf/scripts/python/stackcollapse.py | |
| parent | d2842dec577900031826dc44e9bf0c66416d7173 (diff) | |
| download | linux-d0fef6de4f1b957e35a05a5ba4aab2a2576d6686.tar.xz | |
media: ov08x40: Fix burst write sequence
It is necessary to account for I2C quirks in the burst mode path of this
driver. Not all I2C controllers can accept arbitrarily long writes and this
is represented in the quirks field of the adapter structure.
Prior to this patch the following error message is seen on a Qualcomm
X1E80100 CRD.
[ 38.773524] i2c i2c-2: adapter quirk: msg too long (addr 0x0036, size 290, write)
[ 38.781454] ov08x40 2-0036: Failed regs transferred: -95
[ 38.787076] ov08x40 2-0036: ov08x40_start_streaming failed to set regs
Fix the error by breaking up the write sequence into the advertised maximum
write size of the quirks field if the quirks field is populated.
Fixes: 8f667d202384 ("media: ov08x40: Reduce start streaming time")
Cc: stable@vger.kernel.org # v6.9+
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # x1e80100-crd
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions