reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        git remote add rockchip https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
        git fetch rockchip for-next
        git checkout rockchip/for-next
        b4 shazam https://lore.kernel.org/r/20250620113549.2900285-1-jakob.unterwurzacher@cherry.de
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash dtbs_check