HB_PLL_DIVF_SHIFT
divf = (reg & HB_PLL_DIVF_MASK) >> HB_PLL_DIVF_SHIFT;
if (divf != ((reg & HB_PLL_DIVF_MASK) >> HB_PLL_DIVF_SHIFT)) {
reg |= (divf << HB_PLL_DIVF_SHIFT) | (divq << HB_PLL_DIVQ_SHIFT);