Hi Dave,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   469a89fd3bb73bb2eea628da2b3e0f695f80b7ce
commit: 78df640394cd0de88b9f84982f90f2079e60a5b7 [689/3037] drm/vc4: dsi: Convert to using a bridge instead of encoder
config: ia64-randconfig-r032-20230108
compiler: ia64-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=78df640394cd0de88b9f84982f90f2079e60a5b7
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 78df640394cd0de88b9f84982f90f2079e60a5b7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/gpu/drm/vc4/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/vc4/vc4_dsi.c: In function 'vc4_dsi_dev_probe':
>> drivers/gpu/drm/vc4/vc4_dsi.c:1829:20: error: 'struct drm_bridge' has no member named 'of_node'
    1829 |         dsi->bridge.of_node = dev->of_node;
         |                    ^


vim +1829 drivers/gpu/drm/vc4/vc4_dsi.c

  1814	
  1815	static int vc4_dsi_dev_probe(struct platform_device *pdev)
  1816	{
  1817		struct device *dev = &pdev->dev;
  1818		struct vc4_dsi *dsi;
  1819	
  1820		dsi = kzalloc(sizeof(*dsi), GFP_KERNEL);
  1821		if (!dsi)
  1822			return -ENOMEM;
  1823		dev_set_drvdata(dev, dsi);
  1824	
  1825		kref_init(&dsi->kref);
  1826	
  1827		dsi->pdev = pdev;
  1828		dsi->bridge.funcs = &vc4_dsi_bridge_funcs;
> 1829		dsi->bridge.of_node = dev->of_node;
  1830		dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;
  1831		dsi->dsi_host.ops = &vc4_dsi_host_ops;
  1832		dsi->dsi_host.dev = dev;
  1833		mipi_dsi_host_register(&dsi->dsi_host);
  1834	
  1835		return 0;
  1836	}
  1837	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests