DW_IC_TX_TL 28 drivers/i2c/busses/i2c-designware-master.c dw_writel(dev, dev->tx_fifo_depth / 2, DW_IC_TX_TL); DW_IC_TX_TL 23 drivers/i2c/busses/i2c-designware-slave.c dw_writel(dev, 0, DW_IC_TX_TL);