Hi Andre,

I love your patch! Yet something to improve:

[auto build test ERROR on sunxi/sunxi/for-next]
[also build test ERROR on v5.13-rc6]
[cannot apply to lee-mfd/for-mfd-next mripard/sunxi/for-next next-20210617]
[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/Andre-Przywara/arm64-sunxi-Initial-Allwinner-H616-SoC-support/20210617-022925
base:   https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git sunxi/for-next
config: powerpc64-randconfig-c004-20210617 (attached as .config)
compiler: powerpc-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/b0bd86f86f42049c6e19e25460b042fca7a7901d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andre-Przywara/arm64-sunxi-Initial-Allwinner-H616-SoC-support/20210617-022925
        git checkout b0bd86f86f42049c6e19e25460b042fca7a7901d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 

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 >>):

   powerpc-linux-ld: drivers/rtc/rtc-sun6i.o: in function `sun6i_rtc_settime':
>> rtc-sun6i.c:(.text.sun6i_rtc_settime+0x218): undefined reference to `__udivdi3'

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