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| author | Donggeun Yoo <donggeunyoo.kernel@gmail.com> | 2026-09-02 00:21:26 +0900 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-09-07 02:24:53 +0100 |
| commit | e24328974a88aa8541e94e8bb8dfa2ade1b3c45d (patch) | |
| tree | 43a2533acc955d11f5cb8be1ecba0ab8ba4cbb1e /Documentation/admin-guide/media/rkisp1.dot | |
| download | linux-stable-e24328974a88aa8541e94e8bb8dfa2ade1b3c45d.tar.gz linux-stable-e24328974a88aa8541e94e8bb8dfa2ade1b3c45d.zip | |
iio: proximity: vl53l0x-i2c: claim direct mode for raw readsgrafted
vl53l0x_read_raw() starts a single-shot ranging measurement and reads
back the result. Once the triggered buffer is enabled the sensor runs in
continuous mode and its data-ready interrupt is routed to the trigger,
so a concurrent in_distance_raw read disturbs the streaming setup and
never gets its completion, returning -ETIMEDOUT.
The original submission claimed direct mode here, but it was dropped
during review because the driver had no buffer support at the time [1].
Continuous (buffered) mode was later added without restoring the
claim [2], reintroducing the conflict.
Reject direct reads while buffered capture is active by claiming direct
mode around the measurement, as the vl53l1x sibling already does.
Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support")
Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1]
Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2]
Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Diffstat (limited to 'Documentation/admin-guide/media/rkisp1.dot')
| -rw-r--r-- | Documentation/admin-guide/media/rkisp1.dot | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/admin-guide/media/rkisp1.dot b/Documentation/admin-guide/media/rkisp1.dot new file mode 100644 index 000000000..54c1953a6 --- /dev/null +++ b/Documentation/admin-guide/media/rkisp1.dot @@ -0,0 +1,18 @@ +digraph board { + rankdir=TB + n00000001 [label="{{<port0> 0 | <port1> 1} | rkisp1_isp\n/dev/v4l-subdev0 | {<port2> 2 | <port3> 3}}", shape=Mrecord, style=filled, fillcolor=green] + n00000001:port2 -> n00000006:port0 + n00000001:port2 -> n00000009:port0 + n00000001:port3 -> n00000014 [style=bold] + n00000006 [label="{{<port0> 0} | rkisp1_resizer_mainpath\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000006:port1 -> n0000000c [style=bold] + n00000009 [label="{{<port0> 0} | rkisp1_resizer_selfpath\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000009:port1 -> n00000010 [style=bold] + n0000000c [label="rkisp1_mainpath\n/dev/video0", shape=box, style=filled, fillcolor=yellow] + n00000010 [label="rkisp1_selfpath\n/dev/video1", shape=box, style=filled, fillcolor=yellow] + n00000014 [label="rkisp1_stats\n/dev/video2", shape=box, style=filled, fillcolor=yellow] + n00000018 [label="rkisp1_params\n/dev/video3", shape=box, style=filled, fillcolor=yellow] + n00000018 -> n00000001:port1 [style=bold] + n0000001c [label="{{} | imx219 4-0010\n/dev/v4l-subdev3 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green] + n0000001c:port0 -> n00000001:port0 +} |