pll14xx_calc_rate
rate_min = pll14xx_calc_rate(pll, mdiv, pdiv, sdiv, KDIV_MIN, prate);
rate_max = pll14xx_calc_rate(pll, mdiv, pdiv, sdiv, KDIV_MAX, prate);
fout = pll14xx_calc_rate(pll, mdiv, pdiv, sdiv, kdiv, prate);
fout = pll14xx_calc_rate(pll, mdiv, pdiv, sdiv, kdiv, prate);
return pll14xx_calc_rate(pll, mdiv, pdiv, sdiv, kdiv, parent_rate);