Hi AngeloGioacchino, Thank you for the patch! Yet something to improve: [auto build test ERROR on broonie-regulator/for-next] [also build test ERROR on v5.18 next-20220526] [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/AngeloGioacchino-Del-Regno/MediaTek-Helio-X10-MT6795-MT6331-6332-Regulators/20220523-235049 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220526/202205261929.FCVQ5SD3-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 3d546191ad9d7d2ad2c7928204b9de51deafa675) 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/6dc66c0e54d0e22f6688e5b61d2740e0b839fc1e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review AngeloGioacchino-Del-Regno/MediaTek-Helio-X10-MT6795-MT6331-6332-Regulators/20220523-235049 git checkout 6dc66c0e54d0e22f6688e5b61d2740e0b839fc1e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/regulator/ 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/regulator/mt6331-regulator.c:15:10: fatal error: 'linux/mfd/mt6331/registers.h' file not found #include <linux/mfd/mt6331/registers.h> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +15 drivers/regulator/mt6331-regulator.c 9 10 #include <linux/module.h> 11 #include <linux/of.h> 12 #include <linux/platform_device.h> 13 #include <linux/regmap.h> 14 #include <linux/mfd/mt6397/core.h> > 15 #include <linux/mfd/mt6331/registers.h> 16 #include <linux/regulator/driver.h> 17 #include <linux/regulator/machine.h> 18 #include <linux/regulator/mt6331-regulator.h> 19 #include <linux/regulator/of_regulator.h> 20 -- 0-DAY CI Kernel Test Service https://01.org/lkp