Hi Markus,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on robh/for-next]
[also build test ERROR on pza/reset/next drm-intel/for-linux-next drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.14-rc6 next-20210816]
[cannot apply to drm/drm-next]
[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]

url:    https://github.com/0day-ci/linux/commits/Markus-Schneider-Pargmann/drm-mediatek-Add-mt8195-DisplayPort-driver/20210817-034807
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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://github.com/0day-ci/linux/commit/6b92a3087c42316f0b4bb41cf29928a73271a1b5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Markus-Schneider-Pargmann/drm-mediatek-Add-mt8195-DisplayPort-driver/20210817-034807
        git checkout 6b92a3087c42316f0b4bb41cf29928a73271a1b5
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/mediatek/mtk_dp.c:39:10: fatal error: drm/mediatek_drm.h: No such file or directory
      39 | #include <drm/mediatek_drm.h>
         |          ^~~~~~~~~~~~~~~~~~~~
   compilation terminated.


vim +39 drivers/gpu/drm/mediatek/mtk_dp.c

    28	
    29	#include <drm/drm_atomic_helper.h>
    30	#include <drm/drm_bridge.h>
    31	#include <drm/drm_crtc.h>
    32	#include <drm/drm_crtc_helper.h>
    33	#include <drm/drm_dp_helper.h>
    34	#include <drm/drm_edid.h>
    35	#include <drm/drm_of.h>
    36	#include <drm/drm_panel.h>
    37	#include <drm/drm_print.h>
    38	#include <drm/drm_probe_helper.h>
  > 39	#include <drm/mediatek_drm.h>
    40	#include <sound/hdmi-codec.h>
    41	#include <video/videomode.h>
    42	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org