Hi Maxime, I love your patch! Yet something to improve: [auto build test ERROR on phy/next] [cannot apply to v4.20-rc7 next-20181220] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Maxime-Ripard/phy-Add-MIPI-D-PHY-mode/20181208-034527 base: https://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy.git next config: i386-randconfig-a2-12191846 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): >> ERROR: "phy_mipi_dphy_get_default_config" [drivers/gpu/drm/bridge/cdns-dsi.ko] undefined! --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation