reproduce (this is a W=1 build):
        git checkout d9771d0dbe18dd643760431870a6abf9b0866bb0
        b4 shazam https://lore.kernel.org/r/20251212-upstream-v1-v1-1-d50d40ec8d8a@advantech.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=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash drivers/mfd/ drivers/thermal/