HIX5I2C_COM
writel_relaxed(I2C_STOP, priv->regs + HIX5I2C_COM);
writel_relaxed(I2C_READ | I2C_NO_ACK, priv->regs + HIX5I2C_COM);
writel_relaxed(I2C_READ, priv->regs + HIX5I2C_COM);
writel_relaxed(I2C_WRITE, priv->regs + HIX5I2C_COM);
writel_relaxed(I2C_WRITE | I2C_START, priv->regs + HIX5I2C_COM);