Hi ChiaEn, Thank you for the patch! Yet something to improve: [auto build test ERROR on pavel-leds/for-next] [also build test ERROR on lee-mfd/for-mfd-next lee-backlight/for-backlight-next v5.19-rc1 next-20220606] [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/intel-lab-lkp/linux/commits/ChiaEn-Wu/Add-Mediatek-MT6370-PMIC-support/20220531-211432 base: git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next config: nios2-allyesconfig (https://download.01.org/0day-ci/archive/20220606/202206062207.q0S8wxpj-lkp@xxxxxxxxx/config) compiler: nios2-linux-gcc (GCC) 11.3.0 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/intel-lab-lkp/linux/commit/4de9e5ff11aeade155aa744bcaf9efca82b3d4ee git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review ChiaEn-Wu/Add-Mediatek-MT6370-PMIC-support/20220531-211432 git checkout 4de9e5ff11aeade155aa744bcaf9efca82b3d4ee # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/leds/leds-mt6370.c: In function 'mt6370_check_vendor_info': >> drivers/leds/leds-mt6370.c:873:15: error: implicit declaration of function 'FIELD_GET'; did you mean 'FOLL_GET'? [-Werror=implicit-function-declaration] 873 | vid = FIELD_GET(MT6370_VENID_MASK, devinfo); | ^~~~~~~~~ | FOLL_GET cc1: some warnings being treated as errors vim +873 drivers/leds/leds-mt6370.c 863 864 static int mt6370_check_vendor_info(struct mt6370_priv *priv) 865 { 866 unsigned int devinfo, vid; 867 int ret; 868 869 ret = regmap_read(priv->regmap, MT6370_REG_DEV_INFO, &devinfo); 870 if (ret) 871 return ret; 872 > 873 vid = FIELD_GET(MT6370_VENID_MASK, devinfo); 874 if (vid == 0x9 || vid == 0xb) { 875 priv->reg_fields = mt6372_reg_fields; 876 priv->ranges = mt6372_led_ranges; 877 priv->is_mt6372 = true; 878 } else { 879 priv->reg_fields = common_reg_fields; 880 priv->ranges = common_led_ranges; 881 } 882 883 return 0; 884 } 885 -- 0-DAY CI Kernel Test Service https://01.org/lkp