drm/i915: Setup final panel drrs_type already during init

Now that we track the VBT drrs type per-panel we can move the
has_drrs_modes() check to the panel init rather than doing it
for every intel_panel_drrs_type() call.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221003113249.16213-7-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -165,9 +165,6 @@ static bool has_drrs_modes(struct intel_connector *connector)
 
 enum drrs_type intel_panel_drrs_type(struct intel_connector *connector)
 {
-	if (!has_drrs_modes(connector))
-		return DRRS_TYPE_NONE;
-
 	return connector->panel.vbt.drrs_type;
 }
 
@@ -668,6 +665,9 @@ int intel_panel_init(struct intel_connector *connector)
 
 	intel_backlight_init_funcs(panel);
 
+	if (!has_drrs_modes(connector))
+		connector->panel.vbt.drrs_type = DRRS_TYPE_NONE;
+
 	drm_dbg_kms(connector->base.dev,
 		    "[CONNECTOR:%d:%s] DRRS type: %s\n",
 		    connector->base.base.id, connector->base.name,