reproduce (this is a W=1 build):
        # https://github.com/spacemit-com/linux/commit/c26d1154f593a895582795a5ca198f4cd25e68b1
        git remote add spacemit-com https://github.com/spacemit-com/linux
        git fetch --no-tags spacemit-com wip/k3-pm-v2.2
        git checkout c26d1154f593a895582795a5ca198f4cd25e68b1

        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=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=alpha olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash drivers/gpu/drm/spacemit/