What of the AGX Orin's Video Input Hardware can be Dynamically Powered Off

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

We have an AGX Orin based system running R35.4.1 that may or may not have its MIPI-CSI video input enabled, depending on user configuration. In order to save power I would like to disable the video input hardware, such as VI & NVCSI, and would like to be able to do it dynamically as needed without rebooting.

  • Is that supported?
  • Is there documentation on how to do it?
  • Alternatively, is slowing the clock the only way to limit the SOM hardware’s video input power?

Thanks in advance!

4

Hello @chrisrfq,

That is a very interesting use case.

When you say you want to power off the VI hardware, what specific HW are you talking about?

I ask because the power lines for CSI connectors are managed by the sensor/device driver. And they are usually powered off while no video is being capture.

So I assume yo want to also power off other HW, is that right ?

best regards,
Andrew
Embedded Software Engineer at ProventusNova

1 Like
6

Any hardware on the SOM that is unneeded because there is no video input coming in over CSI. If the driver for that hardware block fully turns off that hardware, then that’s great.

If there is other related Orin hardware that could be turned off, then that would be of interest also. Just trying to reduce all unneeded power.

Thanks for your response!