[Intel-gfx] [PATCH 3/4] drm/i915/tc: move legacy code out of the main _max_lane_count() func

[kernel test robot]

Hi Luca,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-tip/drm-tip]

url:    https://github.com/intel-lab-lkp/linux/commits/Luca-Coelho/drm-i915-tc-rename-mtl_tc_port_get_pin_assignment_mask/20230719-213204
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
patch link:    https://lore.kernel.org/r/20230719132822.305612-4-luciano.coelho%40intel.com
patch subject: [Intel-gfx] [PATCH 3/4] drm/i915/tc: move legacy code out of the main _max_lane_count() func
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230719/202307192225.QnmiapXD-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230719/202307192225.QnmiapXD-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307192225.QnmiapXD-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/i915/display/intel_tc.c: In function 'intel_tc_port_fia_max_lane_count':
>> drivers/gpu/drm/i915/display/intel_tc.c:354:21: error: 'struct intel_digital_port' has no member named 'tc_mode'
     354 |         if (dig_port->tc_mode != TC_PORT_DP_ALT)
         |                     ^~


vim +354 drivers/gpu/drm/i915/display/intel_tc.c

   349	
   350	int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
   351	{
   352		struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
   353	
 > 354		if (dig_port->tc_mode != TC_PORT_DP_ALT)
   355			return 4;
   356	
   357		if (DISPLAY_VER(i915) >= 14)
   358			return mtl_tc_port_get_max_lane_count(dig_port);
   359	
   360		return intel_tc_port_get_max_lane_count(dig_port);
   361	}
   362	

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