drm_helper_probe_single_connector_modes — get complete set of display modes
| int drm_helper_probe_single_connector_modes ( | struct drm_connector * connector, | 
| uint32_t maxX, | |
| uint32_t maxY ); | 
   Based on the helper callbacks implemented by connector try to detect all
   valid modes.  Modes will first be added to the connector's probed_modes list,
   then culled (based on validity and the maxX, maxY parameters) and put into
   the normal modes list.
   
   Intended to be use as a generic implementation of the ->fill_modes
   connector vfunc for drivers that use the crtc helpers for output mode
   filtering and detection.