reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/jmondi/linux.git/commit/?id=e839a3c9e275f9506bcc5f49c5a2b0c45b047985
        git remote add jmondi https://git.kernel.org/pub/scm/linux/kernel/git/jmondi/linux.git
        git fetch --no-tags jmondi pispbe/media-staging/be-upstream
        git checkout e839a3c9e275f9506bcc5f49c5a2b0c45b047985
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/pinctrl/bcm/