chv_calc_dpll_params
chv_calc_dpll_params(refclk, &crtc_state->dpll);
crtc_state->port_clock = chv_calc_dpll_params(refclk, &clock);
chv_calc_dpll_params(refclk, &clock);
int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
chv_calc_dpll_params(display->dpll.ref_clks.nssc, clk_div);
return chv_calc_dpll_params(display->dpll.ref_clks.nssc, &clock);