calc_div
sclk = calc_div(clk, idx, sclk, freq, ddiv);
clk0 = calc_div(clk, idx, clk0, freq, &div1D);
clk1 = calc_div(clk, idx, clk1, freq, &div1P);
sclk = calc_div(clk, idx, sclk, freq, ddiv);
clk0 = calc_div(clk, idx, clk0, freq, &div1D);
clk1 = calc_div(clk, idx, clk1, freq, &div1P);
freq = calc_div(core, vdec, &P1);
out = calc_div(out, vdec, &P2);
calc_div(freq, dom6, &P1);