skl_crtc_calc_dbuf_bw
skl_crtc_calc_dbuf_bw(&old_dbuf_bw, old_crtc_state);
skl_crtc_calc_dbuf_bw(&new_dbuf_bw, new_crtc_state);
skl_crtc_calc_dbuf_bw(&bw_state->dbuf_bw[pipe], crtc_state);