drm/i915: Validate mode against max. link data rate for DP MST
Not validating the mode rate against max. link rate results in not pruning invalid modes. For e.g, a HBR2 5.4 Gbps 2-lane configuration does not support 4k@60Hz. But, we do not reject this mode. So, make use of the helpers in intel_dp to validate mode data rate against max. link data rate of a configuration. v3: Renamed local variables again for consistency (Manasi) v2: Renamed mode data rate local variable to be more explanatory. Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479243546-17189-1-git-send-email-dhinakaran.pandiyan@intel.comSigned-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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