Re: TW686x Linux Main Line Driver Issue

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Hi Krishan,

On 25 April 2017 at 03:46, Krishan Nilanga <krishan@xxxxxxxxxxxxxx> wrote:
> Hi All,
>
> gst-launch-1.0 --gst-debug=3 v4l2src device=/dev/video0 !
> video/x-raw,width=640,height=480,pixelformat=UYVY ! imxeglvivsink
>
> I have tried to run the above gstreamer pipeline and I'm getting
>
> [   97.392807] tw686x 0000:01:00.0: DMA timeout. Resetting DMA for all
> channels
> [   97.392827] tw686x 0000:01:00.0: reset: stopping DMA
>
> for most IRQ calls of tw686x driver.
>
> for some other IRQ calls I'm getting
>
> [   99.592901] tw686x 0000:01:00.0: video0: unexpected p-b buffer!
> [   99.592924] tw686x 0000:01:00.0: reset: stopping DMA
>
> in dmesg.
>
> I hope above details will help to understand the problem.
>

This does not provide much info. It merely says there is some hardware
problem or the signal is being problematic. FWIW, when we get those
messages on our platform it's always correlated to a bad cable
or poor signal.

What is your dma-mode configuration?
-- 
Ezequiel García, VanguardiaSur
www.vanguardiasur.com.ar




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