Hi Yongqiang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.13-rc7 next-20210624]
[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/Yongqiang-Niu/drm-mediatek-add-support-for-mediatek-SOC-MT8192/20210624-213601
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7426cedc7dad67bf3c71ea6cc29ab7822e1a453f
config: x86_64-randconfig-b001-20210622 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 7c8a507272587f181ec29401453949ebcd8fec65)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/f247d197505ad0651084f185bb024521c0c225e8
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Yongqiang-Niu/drm-mediatek-add-support-for-mediatek-SOC-MT8192/20210624-213601
        git checkout f247d197505ad0651084f185bb024521c0c225e8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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/soc/mediatek/mtk-mutex.c:235:3: error: use of undeclared identifier 'DDP_COMPONENT_POSTMASK0'
           [DDP_COMPONENT_POSTMASK0] = MT8192_MUTEX_MOD_DISP_POSTMASK0,
            ^
>> drivers/soc/mediatek/mtk-mutex.c:238:3: error: use of undeclared identifier 'DDP_COMPONENT_OVL_2L2'
           [DDP_COMPONENT_OVL_2L2] = MT8192_MUTEX_MOD_DISP_OVL2_2L,
            ^
>> drivers/soc/mediatek/mtk-mutex.c:240:3: error: use of undeclared identifier 'DDP_COMPONENT_RDMA4'
           [DDP_COMPONENT_RDMA4] = MT8192_MUTEX_MOD_DISP_RDMA4,
            ^
   3 errors generated.


vim +/DDP_COMPONENT_POSTMASK0 +235 drivers/soc/mediatek/mtk-mutex.c

   228	
   229	static const unsigned int mt8192_mutex_mod[DDP_COMPONENT_ID_MAX] = {
   230		[DDP_COMPONENT_AAL0] = MT8192_MUTEX_MOD_DISP_AAL0,
   231		[DDP_COMPONENT_CCORR] = MT8192_MUTEX_MOD_DISP_CCORR0,
   232		[DDP_COMPONENT_COLOR0] = MT8192_MUTEX_MOD_DISP_COLOR0,
   233		[DDP_COMPONENT_DITHER] = MT8192_MUTEX_MOD_DISP_DITHER0,
   234		[DDP_COMPONENT_GAMMA] = MT8192_MUTEX_MOD_DISP_GAMMA0,
 > 235		[DDP_COMPONENT_POSTMASK0] = MT8192_MUTEX_MOD_DISP_POSTMASK0,
   236		[DDP_COMPONENT_OVL0] = MT8192_MUTEX_MOD_DISP_OVL0,
   237		[DDP_COMPONENT_OVL_2L0] = MT8192_MUTEX_MOD_DISP_OVL0_2L,
 > 238		[DDP_COMPONENT_OVL_2L2] = MT8192_MUTEX_MOD_DISP_OVL2_2L,
   239		[DDP_COMPONENT_RDMA0] = MT8192_MUTEX_MOD_DISP_RDMA0,
 > 240		[DDP_COMPONENT_RDMA4] = MT8192_MUTEX_MOD_DISP_RDMA4,
   241	};
   242	

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