reproduce (this is a W=1 build):
        git checkout c824345288d11e269ce41b36c105715bc2286050
        b4 shazam https://lore.kernel.org/r/20260315-x1e-csi2-phy-v4-2-90c09203888d@linaro.org

        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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/phy/qualcomm/