SC16IS7XX_TXLVL_REG  468 drivers/tty/serial/sc16is7xx.c 	case SC16IS7XX_TXLVL_REG:
SC16IS7XX_TXLVL_REG  653 drivers/tty/serial/sc16is7xx.c 		txlen = sc16is7xx_port_read(port, SC16IS7XX_TXLVL_REG);