pll_get_clkout_khz
delta = pll_get_clkout_khz(clkin_khz, i, n, o) - clkout_khz;
pll_out_khz = pll_get_clkout_khz(pll_in_khz, bdiv, mdiv, ndiv);
lvds->pixel_clock_rate = (unsigned long)pll_get_clkout_khz(pll_in_khz, bdiv, mdiv, ndiv)