DTB vs /proc/device-tree mismatch

[khang.l4es]

Hello,

I am observing a mismatching of the properties of my camera node in the custom board device-tree and the /proc/device-tree.

What I have been doing so far :

1. Create a new device-tree for the custom board,
2. Build and flash it to the board, it is well present under /boot/kernel_custom_board.dtb and /boot/dtb/kernel_custom_board.dtb. These files have correct properties.
3. I then de-compile the /proc/device-tree with

dtc -I fs -O dts -o extracted_proc.dts /proc/device-tree

However, the properties of my camera node in the extracted_proc.dts file are different than in the previous dtb. And they seem to have some old value that I’d tried.

What could be the issue, please ?

Thanks and best regards,
K.

[khang.l4es]

Hi again,

Sorry I might find the similar issue : Jetpack 6.0 : /proc/device-tree differs erroneously from FDT file - #11 by phdm

But I took the solution from here instead : Added new drivers to kernel - #8 by mua