PLL_NUMERATOR
pll_numerator = readl_relaxed(pll->base + PLL_NUMERATOR);
writel_relaxed(FIELD_PREP(PLL_MFN_MASK, rate->mfn), pll->base + PLL_NUMERATOR);
readl(pll->base + PLL_NUMERATOR);
writel_relaxed(readl_relaxed(pll->base + PLL_NUMERATOR),
pll->base + PLL_NUMERATOR);