Hi Kamlesh, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on drm-intel/for-linux-next linus/master v5.7 next-20200613] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Kamlesh-Gurudasani/Support-for-tft-displays-based-on-ilitek-ili9488/20200613-221019 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> drivers/gpu/drm/tiny/ili9488.c:322:2: error: 'DRM_GEM_CMA_DRIVER_OPS_VMAP' undeclared here (not in a function) 322 | DRM_GEM_CMA_DRIVER_OPS_VMAP, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/tiny/ili9488.c: In function 'ili9488_probe': >> drivers/gpu/drm/tiny/ili9488.c:354:11: error: implicit declaration of function 'devm_drm_dev_alloc'; did you mean 'drm_dev_alloc'? [-Werror=implicit-function-declaration] 354 | dbidev = devm_drm_dev_alloc(dev, &ili9488_driver, | ^~~~~~~~~~~~~~~~~~ | drm_dev_alloc >> drivers/gpu/drm/tiny/ili9488.c:355:9: error: expected expression before 'struct' 355 | struct mipi_dbi_dev, drm); | ^~~~~~ cc1: some warnings being treated as errors vim +/DRM_GEM_CMA_DRIVER_OPS_VMAP +322 drivers/gpu/drm/tiny/ili9488.c 318 319 static struct drm_driver ili9488_driver = { 320 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, 321 .fops = &ili9488_fops, > 322 DRM_GEM_CMA_DRIVER_OPS_VMAP, 323 .debugfs_init = mipi_dbi_debugfs_init, 324 .name = "ili9488", 325 .desc = "Ilitek ILI9488", 326 .date = "20200607", 327 .major = 1, 328 .minor = 0, 329 }; 330 331 static const struct of_device_id ili9488_of_match[] = { 332 { .compatible = "eastrising,er-tft035-6" }, 333 { } 334 }; 335 MODULE_DEVICE_TABLE(of, ili9488_of_match); 336 337 static const struct spi_device_id ili9488_id[] = { 338 { "er-tft035-6", 0 }, 339 { } 340 }; 341 MODULE_DEVICE_TABLE(spi, ili9488_id); 342 343 static int ili9488_probe(struct spi_device *spi) 344 { 345 struct device *dev = &spi->dev; 346 struct mipi_dbi_dev *dbidev; 347 struct drm_device *drm; 348 struct mipi_dbi *dbi; 349 struct gpio_desc *dc; 350 u32 rotation = 0; 351 size_t bufsize; 352 int ret; 353 > 354 dbidev = devm_drm_dev_alloc(dev, &ili9488_driver, > 355 struct mipi_dbi_dev, drm); 356 if (IS_ERR(dbidev)) 357 return PTR_ERR(dbidev); 358 359 dbi = &dbidev->dbi; 360 drm = &dbidev->drm; 361 362 ret = devm_drm_dev_init(dev, drm, &ili9488_driver); 363 if (ret) { 364 kfree(dbidev); 365 return ret; 366 } 367 368 drm_mode_config_init(drm); 369 370 bufsize = ili9488_mode.vdisplay * ili9488_mode.hdisplay * 3; 371 372 dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); 373 if (IS_ERR(dbi->reset)) { 374 DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); 375 return PTR_ERR(dbi->reset); 376 } 377 378 dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW); 379 if (IS_ERR(dc)) { 380 DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); 381 return PTR_ERR(dc); 382 } 383 384 dbidev->backlight = devm_of_find_backlight(dev); 385 if (IS_ERR(dbidev->backlight)) 386 return PTR_ERR(dbidev->backlight); 387 388 device_property_read_u32(dev, "rotation", &rotation); 389 390 ret = mipi_dbi_spi_init(spi, dbi, dc); 391 if (ret) 392 return ret; 393 394 dbidev->drm.mode_config.preferred_depth = 16; 395 396 ret = mipi_dbi_dev_init_with_formats(dbidev, &ili9488_pipe_funcs, 397 ili9488_formats, 398 ARRAY_SIZE(ili9488_formats), 399 &ili9488_mode, rotation, bufsize); 400 if (ret) 401 return ret; 402 403 drm_mode_config_reset(drm); 404 405 ret = drm_dev_register(drm, 0); 406 if (ret) 407 return ret; 408 409 spi_set_drvdata(spi, drm); 410 411 drm_fbdev_generic_setup(drm, 0); 412 413 return 0; 414 } 415 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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