[PATCH 12/12] backlight: Do not include <linux/fb.h> in header file

[kernel test robot]

Hi Thomas,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on v6.16-rc2 next-20250618]
[cannot apply to lee-backlight/for-backlight-next lee-leds/for-leds-next drm-exynos/exynos-drm-next linus/master lee-backlight/for-backlight-fixes drm-intel/for-linux-next drm-intel/for-linux-next-fixes]
[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/Thomas-Zimmermann/platform-x86-dell-uart-backlight-Use-blacklight-power-constant/20250618-203011
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20250618122436.379013-13-tzimmermann%40suse.de
patch subject: [PATCH 12/12] backlight: Do not include <linux/fb.h> in header file
config: riscv-randconfig-001-20250619 (https://download.01.org/0day-ci/archive/20250619/202506191230.WMfb29QM-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250619/202506191230.WMfb29QM-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/202506191230.WMfb29QM-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/video/backlight/rt4831-backlight.c:215:49: error: array type has incomplete element type 'struct of_device_id'
     215 | static const struct of_device_id __maybe_unused rt4831_bl_of_match[] = {
         |                                                 ^~~~~~~~~~~~~~~~~~


vim +215 drivers/video/backlight/rt4831-backlight.c

190ccab3185eee ChiYuan Huang 2021-05-17  214  
190ccab3185eee ChiYuan Huang 2021-05-17 @215  static const struct of_device_id __maybe_unused rt4831_bl_of_match[] = {
190ccab3185eee ChiYuan Huang 2021-05-17  216  	{ .compatible = "richtek,rt4831-backlight", },
190ccab3185eee ChiYuan Huang 2021-05-17  217  	{}
190ccab3185eee ChiYuan Huang 2021-05-17  218  };
190ccab3185eee ChiYuan Huang 2021-05-17  219  MODULE_DEVICE_TABLE(of, rt4831_bl_of_match);
190ccab3185eee ChiYuan Huang 2021-05-17  220  

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