HIX5I2C_CTRL
writel_relaxed(0, priv->regs + HIX5I2C_CTRL);
priv->regs + HIX5I2C_CTRL);
val = readl_relaxed(priv->regs + HIX5I2C_CTRL);
writel_relaxed(val & (~I2C_UNMASK_TOTAL), priv->regs + HIX5I2C_CTRL);
writel_relaxed(val, priv->regs + HIX5I2C_CTRL);