reproduce (this is a W=1 build):
        git remote add krzk-dt https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt.git
        git fetch krzk-dt for-next
        git checkout krzk-dt/for-next
        b4 shazam https://lore.kernel.org/r/20250914122116.2616801-6-ivo.ivanov.ivanov1@gmail.com
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash drivers/clk/samsung/