Multicamera: vi port -index is not matched what I configured in dtsi

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
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tegra194-camera-ov7251-r.dtsi (10.0 KB) tegra194-camera-ov7251-l.dtsi (10.0 KB) tegra194-camera-ov13b10.dtsi (10.0 KB)

I execute the command : v4l2-ctl --list-devices

vi-output, ov13b10 2-0036 (platform:15c10000.vi:0):
/dev/video1

vi-output, ov7251 2-0060 (platform:15c10000.vi:1):
/dev/video2

vi-output, ov7251_l 2-0061 (platform:15c10000.vi:4):
/dev/video0

the relationship about device and vi port is not matched what I configured in dtsi. It confused me a lot.

but if only load one camera and set num-channels=1 in its dtsi, the relationship of device and vi port is correct

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and if I open cameras by order ov7251_l—ov13b10----ov7251,three of them works well.

if I open ov13b10 firstly , the ov13b10’s video is abnormal.

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What do you mean “vi port is not matched what I configured in dtsi”?

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Hi ShaneCCC:
The correspondence between VI ports and devices is inconsistent with dtsi.

in dtsi files ov13b10’s port index is 4, but v4l2-ctrl tools shows its port is 0:

vi-output, ov13b10 2-0036 (platform:15c10000.vi:0):
/dev/video1

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Could you print the value from the VI/CSI driver to confirm it.

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Hello ShaneCCC,
Thank you for attention ,this issue has been solved.
Because of the included sequence of three camera’s dtsi file in root dtsi.