intel_color_uses_chained_dsb
if (crtc_state->use_dsb && intel_color_uses_chained_dsb(crtc_state)) {
bool intel_color_uses_chained_dsb(const struct intel_crtc_state *crtc_state);
if (intel_color_uses_chained_dsb(new_crtc_state))
if (new_crtc_state->use_dsb && !intel_color_uses_chained_dsb(new_crtc_state)) {