Hi Naresh,

I love your patch! Yet something to improve:

[auto build test ERROR on 6b780408be034213edfb5946889882cb29f8f159]

url:    https://github.com/intel-lab-lkp/linux/commits/Naresh-Solanki/mfd-max597x-Add-support-for-max597x/20221101-103128
base:   6b780408be034213edfb5946889882cb29f8f159
patch link:    https://lore.kernel.org/r/20221031204129.1434059-3-Naresh.Solanki%409elements.com
patch subject: [PATCH v3 2/2] mfd: max597x: Add support for MAX5970 and MAX5978
config: arc-randconfig-r031-20221102
compiler: arceb-elf-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/8165e745b1b29b3fc8d54765bec0eea4f10429c3
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Naresh-Solanki/mfd-max597x-Add-support-for-max597x/20221101-103128
        git checkout 8165e745b1b29b3fc8d54765bec0eea4f10429c3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

drivers/mfd/max597x: struct of_device_id is 196 bytes.  The last of 2 is:
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x6d 0x61 0x78 0x69 0x6d 0x2c 0x6d 0x61 0x78 0x35 0x39 0x37 0x38 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01
>> FATAL: modpost: drivers/mfd/max597x: struct of_device_id is not terminated with a NULL entry!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp