mtk8250_enable_intrs 258 drivers/tty/serial/8250/8250_mtk.c mtk8250_enable_intrs(up, MTK_UART_IER_CTSI | MTK_UART_IER_RTSI); mtk8250_enable_intrs 275 drivers/tty/serial/8250/8250_mtk.c mtk8250_enable_intrs(up, MTK_UART_IER_XOFFI);