LPC_INT_POL
pch_lpc_priv->saved_reg_pol = readl(pch_lpc_priv->base + LPC_INT_POL);
writel(pch_lpc_priv->saved_reg_pol, pch_lpc_priv->base + LPC_INT_POL);
val = readl(priv->base + LPC_INT_POL);
writel(val, priv->base + LPC_INT_POL);