reproduce:
        # https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git/commit/?id=17194c2998d39ab366a2ecbc4d1f3281e00d6a05
        git remote add phy https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git
        git fetch --no-tags phy fixes
        git checkout 17194c2998d39ab366a2ecbc4d1f3281e00d6a05
        # choose either of the following two methods to reproduce the issue
        # 1. reproduce by kismet
           # install kmax per https://github.com/paulgazz/kmax/blob/master/README.md
           kismet --linux-ksrc=linux --selectees CONFIG_PHY_MTK_HDMI --selectors CONFIG_DRM_MEDIATEK_HDMI -a=nios2
        # 2. reproduce by make
           cd linux
           # download the config file from the "config:" link in the report, and save it as .config
           make ARCH=nios2 olddefconfig