VCO_CTRL0
reg = readl_relaxed(vco->base + VCO_CTRL0);
reg = readl_relaxed(vco->base + VCO_CTRL0);
writel_relaxed(reg, vco->base + VCO_CTRL0);
reg = readl_relaxed(vco->base + VCO_CTRL0);
writel_relaxed(reg, vco->base + VCO_CTRL0);