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 <l...@intel.com>

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-...@lists.01.org

Attachment: .config.gz
Description: application/gzip

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