drm/i915/dp: Fix colorimetry detection

intel_dp_init_connector() is no place for detecting stuff via
DPCD (except perhaps for eDP). Move the colorimetry stuff into
a more appropriate place.

Cc: Jouni Högander <jouni.hogander@intel.com>
Fixes: 0007667 ("drm/i915/display: Move colorimetry_support from intel_psr to intel_dp")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240918190441.29071-1-ville.syrjala@linux.intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
(cherry picked from commit 35dba48)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Author: vsyrjala

drivers/gpu/drm/i915/display/intel_dp.c

@@ -4067,6 +4067,9 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp, struct intel_connector *connector
 			 drm_dp_is_branch(intel_dp->dpcd));
 	intel_init_dpcd_quirks(intel_dp, &intel_dp->desc.ident);
 
+	intel_dp->colorimetry_support =
+		intel_dp_get_colorimetry_status(intel_dp);
+
 	/*
 	 * Read the eDP display control registers.
 	 *
@@ -4180,6 +4183,9 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
 
 		intel_init_dpcd_quirks(intel_dp, &intel_dp->desc.ident);
 
+		intel_dp->colorimetry_support =
+			intel_dp_get_colorimetry_status(intel_dp);
+
 		intel_dp_update_sink_caps(intel_dp);
 	}
 
@@ -6931,9 +6937,6 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
 				    "HDCP init failed, skipping.\n");
 	}
 
-	intel_dp->colorimetry_support =
-		intel_dp_get_colorimetry_status(intel_dp);
-
 	intel_dp->frl.is_trained = false;
 	intel_dp->frl.trained_rate_gbps = 0;