Hi, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on drm-intel/for-linux-next drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm-tip/drm-tip linus/master v5.10-rc6 next-20201201] [cannot apply to drm/drm-next] [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/0day-ci/linux/commits/mdurnev-gmail-com/drm-mipi-dbi-Type-B-bus-support-drm-tiny-MRB2801/20201201-071109 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 09162bc32c880a791c6c0668ce0745cf7958f576 config: riscv-randconfig-r024-20201202 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 2671fccf0381769276ca8246ec0499adcb9b0355) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/6d76a991fa9d2c883126667b704c729eaa22df0e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review mdurnev-gmail-com/drm-mipi-dbi-Type-B-bus-support-drm-tiny-MRB2801/20201201-071109 git checkout 6d76a991fa9d2c883126667b704c729eaa22df0e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/gpu/drm/tiny/ili9341_gpio.c:157:14: error: use of undeclared identifier 'mipi_dbi_release'; did you mean 'mipi_dbi_hw_reset'? .release = mipi_dbi_release, ^~~~~~~~~~~~~~~~ mipi_dbi_hw_reset include/drm/drm_mipi_dbi.h:184:6: note: 'mipi_dbi_hw_reset' declared here void mipi_dbi_hw_reset(struct mipi_dbi *dbi); ^ >> drivers/gpu/drm/tiny/ili9341_gpio.c:158:2: error: use of undeclared identifier 'DRM_GEM_CMA_VMAP_DRIVER_OPS' DRM_GEM_CMA_VMAP_DRIVER_OPS, ^ >> drivers/gpu/drm/tiny/ili9341_gpio.c:192:8: error: implicit declaration of function 'devm_drm_dev_init' [-Werror,-Wimplicit-function-declaration] ret = devm_drm_dev_init(dev, drm, &ili9341gpio_driver); ^ 3 errors generated. vim +157 drivers/gpu/drm/tiny/ili9341_gpio.c 153 154 static struct drm_driver ili9341gpio_driver = { 155 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, 156 .fops = &ili9341gpio_fops, > 157 .release = mipi_dbi_release, > 158 DRM_GEM_CMA_VMAP_DRIVER_OPS, 159 .debugfs_init = mipi_dbi_debugfs_init, 160 .name = "ili9341gpio", 161 .desc = "Ilitek ILI9341", 162 .date = "20201114", 163 .major = 1, 164 .minor = 0, 165 }; 166 167 static const struct of_device_id ili9341gpio_of_match[] = { 168 { .compatible = "ronbo,mrb2801" }, 169 { } 170 }; 171 MODULE_DEVICE_TABLE(of, ili9341gpio_of_match); 172 173 static int ili9341gpio_probe(struct platform_device *pdev) 174 { 175 struct device *dev = &pdev->dev; 176 struct mipi_dbi_dev *dbidev; 177 struct drm_device *drm; 178 struct mipi_dbi *dbi; 179 struct gpio_desc *dc; 180 struct gpio_desc *wr; 181 struct gpio_descs *db; 182 u32 rotation = 0; 183 u32 wr_delays[2] = {15, 60}; 184 int ret; 185 186 dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL); 187 if (!dbidev) 188 return -ENOMEM; 189 190 dbi = &dbidev->dbi; 191 drm = &dbidev->drm; > 192 ret = devm_drm_dev_init(dev, drm, &ili9341gpio_driver); 193 if (ret) { 194 kfree(dbidev); 195 return ret; 196 } 197 198 drm_mode_config_init(drm); 199 200 dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); 201 if (IS_ERR(dbi->reset)) { 202 DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); 203 return PTR_ERR(dbi->reset); 204 } 205 206 dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_HIGH); 207 if (IS_ERR(dc)) { 208 DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); 209 return PTR_ERR(dc); 210 } 211 212 wr = devm_gpiod_get(dev, "wr", GPIOD_OUT_HIGH); 213 if (IS_ERR(wr)) { 214 DRM_DEV_ERROR(dev, "Failed to get gpio 'wr'\n"); 215 return PTR_ERR(wr); 216 } 217 218 db = devm_gpiod_get_array(dev, "db", GPIOD_OUT_LOW); 219 if (IS_ERR(db)) { 220 DRM_DEV_ERROR(dev, "Failed to get gpio 'db'\n"); 221 return PTR_ERR(db); 222 } 223 if (db->ndescs != 16 && db->ndescs != 8) { 224 /* 225 * The data bus can be either 8 or 16 bits wide. 226 * ILI9341 can work with 6, 8, 9, 16, and 18-bit parallel interfaces, 227 * but the MRB2801 board supports only 8 or 16-bit interfaces. 228 */ 229 DRM_DEV_ERROR(dev, "Wrong number of bits in gpio 'db': %u\n", db->ndescs); 230 return PTR_ERR(db); 231 } 232 233 dbidev->backlight = devm_of_find_backlight(dev); 234 if (IS_ERR(dbidev->backlight)) 235 return PTR_ERR(dbidev->backlight); 236 237 device_property_read_u32(dev, "rotation", &rotation); 238 239 device_property_read_u32_array(dev, "wr-up-down-delays", wr_delays, 2); 240 241 ret = mipi_dbi_gpio_init(dbi, dc, wr, db, wr_delays[0], wr_delays[1]); 242 if (ret) 243 return ret; 244 245 ret = mipi_dbi_dev_init(dbidev, &ili9341gpio_pipe_funcs, &yx240qv29_mode, rotation); 246 if (ret) 247 return ret; 248 249 drm_mode_config_reset(drm); 250 251 ret = drm_dev_register(drm, 0); 252 if (ret) 253 return ret; 254 255 platform_set_drvdata(pdev, drm); 256 257 drm_fbdev_generic_setup(drm, 0); 258 259 return 0; 260 } 261 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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