DivideWithRounding
int vClkFreq = DivideWithRounding(pll.reference_freq * params.feedback_div,
int xClksPerTransfer = DivideWithRounding(xClkFreq * displayFifoWidth,
int xClksPerTransferPrecise = DivideWithRounding(
params.feedback_div = DivideWithRounding(pll.reference_div * output_freq,