[PATCH v3 1/3] drm/display: add transparent bridge helper

[kernel test robot]

Hi Dmitry,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on usb/usb-testing usb/usb-next usb/usb-linus drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.5-rc4 next-20230804]
[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/Dmitry-Baryshkov/drm-display-add-transparent-bridge-helper/20230802-091932
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230802011845.4176631-2-dmitry.baryshkov%40linaro.org
patch subject: [PATCH v3 1/3] drm/display: add transparent bridge helper
config: i386-randconfig-r072-20230806 (https://download.01.org/0day-ci/archive/20230806/202308062017.iKU92hML-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230806/202308062017.iKU92hML-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308062017.iKU92hML-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/display/drm_simple_bridge.c:118:25: sparse: sparse: symbol 'drm_simple_bridge_drv' was not declared. Should it be static?

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