Recompiling kernel for Tinkerboard

I’m trying to remove some drivers from my DietPi install on Tinkerboard, but I’m getting an error stating that.

ERROR: Module ftdi_sio is builtin

My understanding is that the best way to fix this is to make some changes in the kernel and then recompile. Can anyone point me in the right direction for doing this? I can find instructions pretty easily on google for how to recompile the kernel, but where can I find the correct one for Tinkerboard?