Hi Tomi,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.0-rc8 next-20190225]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jyri-Sarha/drm-bridge-sii902x-HDMI-audio-support-and-some-fixes/20190226-014705
config: nds32-allyesconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 6.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=6.4.0 make.cross ARCH=nds32 

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/bridge/sii902x.c:463:2: error: unknown field 'input_bus_flags' specified in initializer
     .input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE
     ^
>> drivers/gpu/drm/bridge/sii902x.c:463:21: error: 'DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE' undeclared here (not in a function)
     .input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/bridge/sii902x.c:464:6: error: 'DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE' undeclared here (not in a function)
       | DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/input_bus_flags +463 drivers/gpu/drm/bridge/sii902x.c

   461	
   462	static const struct drm_bridge_timings default_sii902x_timings = {
 > 463		.input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE
 > 464			 | DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE
   465			 | DRM_BUS_FLAG_DE_HIGH,
   466	};
   467	

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