diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index de527c9a0743..b34667b9577e 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -345,14 +345,17 @@ static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
 {
 	struct drm_connector_state *old_state =
 		drm_atomic_get_old_connector_state(state, connector);
+	struct vc4_hdmi_connector_state *old_vc4_state = conn_state_to_vc4_hdmi_conn_state(old_state);
 	struct drm_connector_state *new_state =
 		drm_atomic_get_new_connector_state(state, connector);
+	struct vc4_hdmi_connector_state *new_vc4_state = conn_state_to_vc4_hdmi_conn_state(new_state);
 	struct drm_crtc *crtc = new_state->crtc;
 
 	if (!crtc)
 		return 0;
 
 	if (old_state->colorspace != new_state->colorspace ||
+	    old_vc4_state->broadcast_rgb != new_vc4_state->broadcast_rgb ||
 	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
 		struct drm_crtc_state *crtc_state;