[sverdlin:ep93xx-snd-wip 16/48] drivers/power/reset/ep93xx-restart.c:22:9: error: implicit declaration of function 'ep93xx_devcfg_set_clear'

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/sverdlin/linux ep93xx-snd-wip
head:   ba6048c19f4e119e9d76024c66e205a7f6750063
commit: a436b8a7d7370b4ef5a7d33015f21e684d387454 [16/48] power: reset: Add a driver for the ep93xx reset
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230323/202303231304.HohbBA4z-lkp@intel.com/config)
compiler: powerpc-linux-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/sverdlin/linux/commit/a436b8a7d7370b4ef5a7d33015f21e684d387454
        git remote add sverdlin https://github.com/sverdlin/linux
        git fetch --no-tags sverdlin ep93xx-snd-wip
        git checkout a436b8a7d7370b4ef5a7d33015f21e684d387454
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/power/reset/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303231304.HohbBA4z-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/power/reset/ep93xx-restart.c: In function 'ep93xx_restart_handle':
>> drivers/power/reset/ep93xx-restart.c:22:9: error: implicit declaration of function 'ep93xx_devcfg_set_clear' [-Werror=implicit-function-declaration]
      22 |         ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_SWRST, 0x00);
         |         ^~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/ep93xx_devcfg_set_clear +22 drivers/power/reset/ep93xx-restart.c

    17	
    18	static int ep93xx_restart_handle(struct notifier_block *this,
    19					 unsigned long mode, void *cmd)
    20	{
    21		/* Issue the reboot */
  > 22		ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_SWRST, 0x00);
    23		ep93xx_devcfg_set_clear(0x00, EP93XX_SYSCON_DEVCFG_SWRST);
    24	
    25		mdelay(1000);
    26	
    27		pr_emerg("Unable to restart system\n");
    28		return NOTIFY_DONE;
    29	}
    30	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests