[PATCH v3] drm/mediatek: Add support for AR30 and BA30

[kernel test robot]

Hi Justin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.2-rc5]
[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/Justin-Green/drm-mediatek-Add-support-for-AR30-and-BA30/20230128-112134
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230127230123.941930-1-greenjustin%40google.com
patch subject: [PATCH v3] drm/mediatek: Add support for AR30 and BA30
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20230129/202301291906.Az5NHf9w-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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://github.com/intel-lab-lkp/linux/commit/c32525cf66e7bbf4e798aef3aafbf88dee5d049c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Justin-Green/drm-mediatek-Add-support-for-AR30-and-BA30/20230128-112134
        git checkout c32525cf66e7bbf4e798aef3aafbf88dee5d049c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/mediatek/ sound/soc/samsung/

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

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/mediatek/mtk_drm_crtc.h:10,
                    from drivers/gpu/drm/mediatek/mtk_disp_aal.c:15:
   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h: In function 'mtk_ddp_comp_supports_10bit':
>> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h:159:35: warning: returning 'int (*)(struct device *)' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion]
     159 |                 return comp->funcs->supports_10bit;
         |                        ~~~~~~~~~~~^~~~~~~~~~~~~~~~


vim +159 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h

   154	
   155	static inline
   156	int mtk_ddp_comp_supports_10bit(struct mtk_ddp_comp *comp)
   157	{
   158		if (comp->funcs && comp->funcs->supports_10bit)
 > 159			return comp->funcs->supports_10bit;
   160	
   161	        return 0;
   162	}
   163	

-- 
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https://github.com/intel/lkp-tests