I fix the device tree and add an driver for my camera module.
And this is the device tree and driver code
tegra234-camera-rbpcv2-imx219.txt (8.4 KB)
nv_cam.txt (3.4 KB)
After I load the .ko to the kernel
Blockquote
$sudo dmesg
[ 118.080772] tegra-camrtc-capture-vi tegra-capture-vi: subdev gctcam bound
[ 118.081669] tegra-camrtc-capture-vi tegra-capture-vi: invalid port number 0 for /cam_i2cmux/i2c@0/rbpcv2_imx219_a@33
[ 118.092726] tegra-camrtc-capture-vi tegra-capture-vi: subdev gctcam unbind
[ 118.092733] gctcam 9-0033: Failed to register V4L2 subdev
[ 118.098331] gctcam: probe of 9-0033 failed with error -22
How can I fix it?
I had check the endpoint already
The port-index should be 1
rbpcv2_imx219_out0: endpoint {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&rbpcv2_imx219_csi_in0>;
Thanks for your reply.
I had changed this yesterday. But still have same result at dmesg.
According to this picture, i set device tree as:
tegra_sinterface = “serial_b”;
port-index = <1>;
lane_polarity = “6”;
Are these correct?
If it is, what other factors might cause this issue?
Check below error to print the value to check what cause the failed.
I mean which file.
Is this file?
Linux_for_Tegra/source/public/kernel/nvidia/drivers/media/platform/tegra/camera/vi/graph.c
I use “grep -rnw “invalid port number” ~/20250102/Linux_for_Tegra/source/public/” find out this file. Should I add at this file?
What kind of information should I print?
I don’t know how to get the error value.
From the log it could be the num_pads is 0 cause the error.
It could be the status in some node is disable in device tree.
You may need to dump the device tree to confirm.
sudo dtc -I fs -O dts -o extracted_proc.dts /proc/device-tree
Thanks for your reply.
This is the output file.
extracted_proc.txt (415.4 KB)
The " csi_chan0 {}" in the nvcsi@15a00000 {} looks like incorrect.
How can I modify it to make it look right?
Should remove below.
csi_chan0 {
ports {
port@0 {
endpoint@0 {
port-index = <0x01>;
};
};
};
};
This is original dtsi.
Do you mean change like this
remove "port-index = <1> "
Do you compare your source with dump file?
The csi_chan0 {} I mention looks like in incorrect scope.
