drm_dp_calc_pbn_mode
dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp << 4);
EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
int drm_dp_calc_pbn_mode(int clock, int bpp);