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Registered: ‎03-15-2021

Petalinux - videopipeline error : Failed to enumerate /dev/media0 (-2)

Hello everybody,

I am trying to build a video pipeline in Petalinux 2019.1 and my vivado design is as follows 
Camera -> MIPI-CSI-RX-Subysystem -> Sensor Demosaic -> Gamma LUT-> VDMA -> ZYNQ-PS. 


I am fairly new to the petalinux tools and device trees, However, I have managed to build the petalinux with the device tree which I have attached.
I obtain the results after booting as in the putty log file. Please find the attachment.

1. What am I doing wrong ? also
2. How do I include Gamma LUT in the device tree, because when this block is added to the device tree a kernel panic occurs during the boot.

My aim is to save images using the command : 

yavta -c5 -f YUYV -s "$width"x"$height" -F /dev/video0. 

Any help is greatly appreciated.

Thank you.


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Registered: ‎11-09-2015

HI @GUmesh 

I guess that you are aware that the binding is the documentation for the device tree. If you look at the binding for the gamma lut:

You will see that there are required properties. One of them is the following:

- reset-gpios: Specifier for a GPIO that asserts Gamma IP (AP_RST_N) reset

I do not see it in your device tree. And I believe for the resets, all IP should be connected to a different GPIO pin which is not the case in your design as I can see that all IPs are connected to the same reset. 

Not sure if this is your issue but this is a first path to explore

Product Application Engineer - Xilinx Technical Support EMEA
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