reproduce (this is a W=1 build):
        git checkout 8ffcb7560b4a15faf821df95e3ab532b2b020f8c
        b4 shazam https://lore.kernel.org/r/82cbc8558f15981e0953ab229d2afcc5501f982c.1750301674.git.zhoubinbin@loongson.cn
        # 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/mfd/