MTK_UART_FRACDIV_L 359 drivers/tty/serial/8250/8250_mtk.c serial_port_out(port, MTK_UART_FRACDIV_L, MTK_UART_FRACDIV_L 366 drivers/tty/serial/8250/8250_mtk.c serial_port_out(port, MTK_UART_FRACDIV_L, 0x00);