diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 1e10163bdc36..757a78c75bbf 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4881,11 +4881,14 @@ static bool
 intel_compare_dp_as_sdp(const struct drm_dp_as_sdp *a,
 			const struct drm_dp_as_sdp *b)
 {
-	return a->revision == b->revision &&
+	return a->sdp_type == b->sdp_type &&
+		a->revision == b->revision &&
+		a->length == b->length &&
 		a->vtotal == b->vtotal &&
 		a->target_rr == b->target_rr &&
 		a->duration_incr_ms == b->duration_incr_ms &&
 		a->duration_decr_ms == b->duration_decr_ms &&
+		a->target_rr_divider == b->target_rr_divider &&
 		a->mode == b->mode;
 }