drm_dp_calc_pbn_mode
pbn = drm_dp_calc_pbn_mode(clock, bpp);
EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
ret = drm_dp_calc_pbn_mode(154000, 30);
ret = drm_dp_calc_pbn_mode(234000, 30);
ret = drm_dp_calc_pbn_mode(297000, 24);
mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
int drm_dp_calc_pbn_mode(int clock, int bpp);
mst_enc->pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);