reproduce (this is a W=1 build):
        git checkout 8856d7fe1758937ac528770f552ec58c388c255b
        b4 shazam https://lore.kernel.org/r/20260112-ltc3220-driver-v2-2-d043058fc4df@analog.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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/leds/ drivers/staging/fbtft/