UART_FCR_TRIGGER_4  700 drivers/tty/mxser.c 				fcr |= UART_FCR_TRIGGER_4;
UART_FCR_TRIGGER_4  387 samples/vfio-mdev/mtty.c 		case UART_FCR_TRIGGER_4:
UART_FCR_TRIGGER_4  374 sound/drivers/serial-u16550.c 	     | UART_FCR_TRIGGER_4	/* Set FIFO trigger at 4-bytes */