drm/i915/dp: Add helper to get sink_format

Common function to get the sink format for a given mode for DP.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230427125605.487769-6-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2023-04-27 18:26:04 +05:30 • committed by Ville Syrjälä
commit 5814227de1