Hi Ondrej,

I love your patch! Yet something to improve:

[auto build test ERROR on sunxi/sunxi/for-next]
[also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip v5.13-rc5 next-20210604]
[cannot apply to mripard/sunxi/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Ondrej-Jirman/drm-sun4i-dw-hdmi-Make-HDMI-PHY-into-a-platform-device/20210607-073052
base:   https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git sunxi/for-next
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/c6089f30e38cc9cc85d5c5856420a8c429cdfa23
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ondrej-Jirman/drm-sun4i-dw-hdmi-Make-HDMI-PHY-into-a-platform-device/20210607-073052
        git checkout c6089f30e38cc9cc85d5c5856420a8c429cdfa23
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   aarch64-linux-ld: drivers/gpu/drm/sun4i/sun8i_hdmi_phy.o: in function `sun8i_hdmi_phy_driver_init':
>> sun8i_hdmi_phy.c:(.init.text+0x0): multiple definition of `init_module'; drivers/gpu/drm/sun4i/sun8i_dw_hdmi.o:sun8i_dw_hdmi.c:(.init.text+0x0): first defined here
   aarch64-linux-ld: drivers/gpu/drm/sun4i/sun8i_hdmi_phy.o: in function `sun8i_hdmi_phy_driver_exit':
>> sun8i_hdmi_phy.c:(.exit.text+0x0): multiple definition of `cleanup_module'; drivers/gpu/drm/sun4i/sun8i_dw_hdmi.o:sun8i_dw_hdmi.c:(.exit.text+0x0): first defined here

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org