I have repository with out-of-tree kernel driver that build and works. In subdirectory I have device tree overlay that I can build and use, but I wanted the .dtbo to be build with the driver code, mostly to handle that in DKMS.

I have repository with out-of-tree kernel driver that build and works. In subdirectory I have device tree overlay that I can build and use, but I wanted the .dtbo to be build with the driver code, mostly to handle that in DKMS.

I created a module in samples/my_module with Kconfig file and updated Makefile and Kconfig files in samples/. When I build kernel with my module marked as [*](so it is built-in) everything is ok and module is successfuly loaded during boot. But if I want it to be a module([M]), it does not appear anywhere.
Can I configure kernel to have my_module.ko somewhere in rootfs?