Is it possible to implement hot-plug in IPU CSI

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Is it possible to implement hot-plug in IPU CSI

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zohanlin
Contributor III

Dear all

I used imx6q and BSP is 4.2.2, kernel version is 3.0.35.

I set CSI by BT.656 mode.

I plug video cable and use CSI to receive the video,

the video showed on LCD is OK.

But when I unplug the cable and plug it again, vsync function seems ineffective.

I think IPU CSI only do vsync function at the beginning of receiving video streaming, 

and it wouldn't do vsync function again when video cable is replugged.

is that right?

If it's right,  is it possible to make IPU CSI do vsync when video cable is replugged or implement hot-plug in IPU CSI ?

Thanks a lot,

zohan

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2 Replies

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi zohan

I am afraid it is not possible to implement hot-plug in IPU CSI,

also resyncing function may not automatically work when video cable is replugged.

Best regards
igor
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zohanlin
Contributor III

Hi igor

Thanks for your answer.

It seems that I need to reload driver to sync again when I replug video table.

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