UPF_HARDPPS_CD 2704 drivers/tty/serial/8250/8250_port.c port->flags |= UPF_HARDPPS_CD; UPF_HARDPPS_CD 2709 drivers/tty/serial/8250/8250_port.c port->flags &= ~UPF_HARDPPS_CD; UPF_HARDPPS_CD 482 drivers/tty/serial/amba-pl010.c port->flags |= UPF_HARDPPS_CD; UPF_HARDPPS_CD 487 drivers/tty/serial/amba-pl010.c port->flags &= ~UPF_HARDPPS_CD; UPF_HARDPPS_CD 2341 drivers/tty/serial/atmel_serial.c port->flags |= UPF_HARDPPS_CD; UPF_HARDPPS_CD 2346 drivers/tty/serial/atmel_serial.c port->flags &= ~UPF_HARDPPS_CD; UPF_HARDPPS_CD 1120 drivers/tty/serial/mxs-auart.c port->flags |= UPF_HARDPPS_CD; UPF_HARDPPS_CD 1123 drivers/tty/serial/mxs-auart.c port->flags &= ~UPF_HARDPPS_CD; UPF_HARDPPS_CD 542 include/linux/serial_core.h #define UART_ENABLE_MS(port,cflag) ((port)->flags & UPF_HARDPPS_CD || \