Hi Yinbo, I love your patch! Yet something to improve: [auto build test ERROR on broonie-spi/for-next] [also build test ERROR on robh/for-next krzk-dt/for-next linus/master v6.3-rc3 next-20230324] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230324-143432 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next patch link: https://lore.kernel.org/r/20230324063317.14664-3-zhuyinbo%40loongson.cn patch subject: [PATCH v3 2/2] spi: loongson: add bus driver for the loongson spi controller config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230324/202303241811.OXj9KxAr-lkp@xxxxxxxxx/config) compiler: sparc64-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/intel-lab-lkp/linux/commit/3742622c455d25c4a110d2caf2f5b2ceefe88f91 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230324-143432 git checkout 3742622c455d25c4a110d2caf2f5b2ceefe88f91 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303241811.OXj9KxAr-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): drivers/spi/spi-loongson-core.c: In function 'loongson_spi_init_master': >> drivers/spi/spi-loongson-core.c:229:21: error: implicit declaration of function 'devm_ioremap'; did you mean 'of_ioremap'? [-Werror=implicit-function-declaration] 229 | spi->base = devm_ioremap(dev, res->start, resource_size(res)); | ^~~~~~~~~~~~ | of_ioremap >> drivers/spi/spi-loongson-core.c:229:19: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 229 | spi->base = devm_ioremap(dev, res->start, resource_size(res)); | ^ cc1: some warnings being treated as errors vim +229 drivers/spi/spi-loongson-core.c 201 202 int loongson_spi_init_master(struct device *dev, struct resource *res) 203 { 204 struct spi_master *master; 205 struct loongson_spi *spi; 206 struct clk *clk; 207 int ret; 208 209 master = spi_alloc_master(dev, sizeof(struct loongson_spi)); 210 if (master == NULL) { 211 dev_dbg(dev, "master allocation failed\n"); 212 return -ENOMEM; 213 } 214 215 master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; 216 master->setup = loongson_spi_setup; 217 master->prepare_message = loongson_spi_prepare_message; 218 master->transfer_one = loongson_spi_transfer_one; 219 master->unprepare_message = loongson_spi_unprepare_message; 220 master->set_cs = loongson_spi_set_cs; 221 master->num_chipselect = 4; 222 master->dev.of_node = of_node_get(dev->of_node); 223 dev_set_drvdata(dev, master); 224 225 spi = spi_master_get_devdata(master); 226 227 spi->master = master; 228 > 229 spi->base = devm_ioremap(dev, res->start, resource_size(res)); 230 if (spi->base == NULL) { 231 dev_err(dev, "cannot map io\n"); 232 ret = -ENXIO; 233 goto free_master; 234 } 235 236 clk = devm_clk_get(dev, NULL); 237 if (!IS_ERR(clk)) 238 spi->clk_rate = clk_get_rate(clk); 239 240 loongson_spi_reginit(spi); 241 242 spi->mode = 0; 243 if (of_get_property(dev->of_node, "spi-nocs", NULL)) 244 spi->mode |= SPI_NO_CS; 245 246 ret = spi_register_master(master); 247 if (ret < 0) 248 goto free_master; 249 250 return ret; 251 252 free_master: 253 kfree(master); 254 spi_master_put(master); 255 256 return ret; 257 } 258 EXPORT_SYMBOL_GPL(loongson_spi_init_master); 259 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests