Hi Maxime,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm/drm-next]
[also build test WARNING on next-20211203]
[cannot apply to drm-intel/for-linux-next anholt/for-next v5.16-rc3]
[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/Maxime-Ripard/drm-vc4-hdmi-Yet-Another-Approach-to-HDMI-YUV-output/20211203-185623
base:   git://anongit.freedesktop.org/drm/drm drm-next
config: powerpc-randconfig-s031-20211203 
(https://download.01.org/0day-ci/archive/20211204/202112040851.zyd2j0lk-...@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # 
https://github.com/0day-ci/linux/commit/70ee339decc66c157b6c9c983e8cce172c323218
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Maxime-Ripard/drm-vc4-hdmi-Yet-Another-Approach-to-HDMI-YUV-output/20211203-185623
        git checkout 70ee339decc66c157b6c9c983e8cce172c323218
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc 
SHELL=/bin/bash drivers/gpu/drm/vc4/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/vc4/vc4_hdmi.c:503:37: sparse: sparse: mixing different enum 
>> types:
>> drivers/gpu/drm/vc4/vc4_hdmi.c:503:37: sparse:    unsigned int enum 
>> vc4_hdmi_output_format
>> drivers/gpu/drm/vc4/vc4_hdmi.c:503:37: sparse:    unsigned int enum 
>> hdmi_colorspace

vim +503 drivers/gpu/drm/vc4/vc4_hdmi.c

   491  
   492  static void vc4_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe 
*frame,
   493                                                enum 
vc4_hdmi_output_format fmt)
   494  {
   495          switch (fmt) {
   496          case VC4_HDMI_OUTPUT_RGB:
   497                  fallthrough;
   498          case VC4_HDMI_OUTPUT_YUV420:
   499                  fallthrough;
   500          case VC4_HDMI_OUTPUT_YUV422:
   501                  fallthrough;
   502          case VC4_HDMI_OUTPUT_YUV444:
 > 503                  frame->colorspace = fmt;
   504                  break;
   505  
   506          default:
   507                  break;
   508          }
   509  }
   510  

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

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