reproduce (this is a W=1 build):
        # https://github.com/esmil/linux/commit/9ddfc9198b7e184dd591733fba350e99b3138276
        git remote add esmil https://github.com/esmil/linux
        git fetch --no-tags esmil jh7110
        git checkout 9ddfc9198b7e184dd591733fba350e99b3138276
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/verisilicon/