HIBMC_CRT_DISP_CTL
reg = readl(priv->mmio + HIBMC_CRT_DISP_CTL);
writel(reg, priv->mmio + HIBMC_CRT_DISP_CTL);
reg = readl(priv->mmio + HIBMC_CRT_DISP_CTL);
writel(reg, priv->mmio + HIBMC_CRT_DISP_CTL);
writel(ctrl, priv->mmio + HIBMC_CRT_DISP_CTL);
reg = readl(priv->mmio + HIBMC_CRT_DISP_CTL);
writel(reg, priv->mmio + HIBMC_CRT_DISP_CTL);