S_stream function enables then disables right afterwards

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

Hi,

I’m trying to make my single ar0144 camera to dual to work on jetson nano 4gb, since it has 2 lane MIPI.

The single version works fine with my jetson nano 2gb, but when ever I try to make it dual, there is this strange (I guess bug) thing happens.

[ 693.673333] ar0144 7-0010: ar0144_s_stream func begin
[ 693.673336] ar0144_s_stream enable
[ 694.084996] ar0144 7-0010: ar0144_s_stream func begin
[ 694.085012] ar0144_s_stream disable
[ 694.085627] ar0144 8-0010: ar0144_s_stream func begin
[ 694.085639] ar0144_s_stream enable
[ 694.516263] ar0144 8-0010: ar0144_s_stream func begin
[ 694.516274] ar0144_s_stream disable

It also write its registers without an issue.

I’m hard stuck with this any help ?

3

hello tunakayakaan,

could you please elaborate your environment setups. did you meant you’ve verify single camera use-case?
how you extend camera supports, please see-also Nano’s single/dual camera device tree for reference,
for example, tegra210-camera-rbpcv2-dual-imx219.dtsi and tegra210-camera-rbpcv2-imx219.dtsi.
thanks

4

Hello Jerry,

So I have 4gb Jetson Nano with two ar0144 cameras which is connected to two available 2 MIPI ports that’s pretty much it for setup. Yes, I verify the single camera use-case for this camera and it’s working great, however I want to make it work for dual cameras that’s why I am asking. I also take a look at dual version of IMX219 and modify it accordingly to that. Btw I’m using 32.5.1

5

hello tunakayakaan,

please review the reference driver to implement dual camera supports,
you should also review the port bindings to check they’re mapping correctly.
thanks

6

Hi Jerry,

I manage the solve this issue by changing the format of the camera. I forgot to change it, my mistake. Now it works with GRAY8.

8

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