serial: don't optimise away baud rate changes when BOTHER is used

[linux-2.6-block.git] / drivers / serial / serial_core.c

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 326020f86f757e98ef6f148754cdb1e355ee75b3..a055f58f342f3a1570f8648eb35c4df8550be353 100644 (file)
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -626,7 +626,7 @@ static int uart_get_info(struct uart_state *state,
        tmp.hub6            = port->hub6;
        tmp.io_type         = port->iotype;
        tmp.iomem_reg_shift = port->regshift;
-       tmp.iomem_base      = (void *)port->mapbase;
+       tmp.iomem_base      = (void *)(unsigned long)port->mapbase;
 
        if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
                return -EFAULT;
@@ -1146,11 +1146,14 @@ static void uart_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 
        /*
         * These are the bits that are used to setup various
-        * flags in the low level driver.
+        * flags in the low level driver. We can ignore the Bfoo
+        * bits in c_cflag; c_[io]speed will always be set
+        * appropriately by set_termios() in tty_ioctl.c
         */
 #define RELEVANT_IFLAG(iflag)  ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
        if ((cflag ^ old_termios->c_cflag) == 0 &&
+           tty->termios->c_ospeed == old_termios->c_ospeed &&
+           tty->termios->c_ispeed == old_termios->c_ispeed &&
            RELEVANT_IFLAG(tty->termios->c_iflag ^ old_termios->c_iflag) == 0)
                return;
 
@@ -1666,10 +1669,11 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
                return 0;
 
        mmio = port->iotype >= UPIO_MEM;
-       ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d",
+       ret = sprintf(buf, "%d: uart:%s %s%08llX irq:%d",
                        port->line, uart_type(port),
                        mmio ? "mmio:0x" : "port:",
-                       mmio ? port->mapbase : (unsigned long) port->iobase,
+                       mmio ? (unsigned long long)port->mapbase
+                            : (unsigned long long) port->iobase,
                        port->irq);
 
        if (port->type == PORT_UNKNOWN) {
@@ -1910,6 +1914,12 @@ uart_set_options(struct uart_port *port, struct console *co,
        if (flow == 'r')
                termios.c_cflag |= CRTSCTS;
 
+       /*
+        * some uarts on other side don't support no flow control.
+        * So we set * DTR in host uart to make them happy
+        */
+       port->mctrl |= TIOCM_DTR;
+
        port->ops->set_termios(port, &termios, NULL);
        co->cflag = termios.c_cflag;
 
@@ -2063,7 +2073,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
        case UPIO_TSI:
        case UPIO_DWAPB:
                snprintf(address, sizeof(address),
-                        "MMIO 0x%lx", port->mapbase);
+                        "MMIO 0x%llx", (unsigned long long)port->mapbase);
                break;
        default:
                strlcpy(address, "*unknown*", sizeof(address));