Sorry, I know it is a noob question.
I want to add something to the "arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts" file, and tried serval methods to make the patch to build, but no luck:
Method1:
1. Directly modify the "arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts" file
2. Add "CREATE_PATCHES="yes" in $ARMBIAN_BUILD_HOME/build/userpatches/config-example.conf
3. Compile
After compiled, I found my modification was not on "arch/arm64/boot/dts/rockchip/rk3328-roc-cc