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path: root/drivers/usb/serial/cp2101.c
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Diffstat (limited to 'drivers/usb/serial/cp2101.c')
-rw-r--r--drivers/usb/serial/cp2101.c69
1 files changed, 27 insertions, 42 deletions
diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c
index e831cb7f64fd..33f6ee50b8d3 100644
--- a/drivers/usb/serial/cp2101.c
+++ b/drivers/usb/serial/cp2101.c
@@ -356,7 +356,7 @@ static void cp2101_get_termios (struct usb_serial_port *port)
dbg("%s - port %d", __FUNCTION__, port->number);
- if ((!port->tty) || (!port->tty->termios)) {
+ if (!port->tty || !port->tty->termios) {
dbg("%s - no tty structures", __FUNCTION__);
return;
}
@@ -526,50 +526,35 @@ static void cp2101_set_termios (struct usb_serial_port *port,
return;
}
cflag = port->tty->termios->c_cflag;
-
- /* Check that they really want us to change something */
- if (old_termios) {
- if ((cflag == old_termios->c_cflag) &&
- (RELEVANT_IFLAG(port->tty->termios->c_iflag)
- == RELEVANT_IFLAG(old_termios->c_iflag))) {
- dbg("%s - nothing to change...", __FUNCTION__);
- return;
- }
-
- old_cflag = old_termios->c_cflag;
- }
+ old_cflag = old_termios->c_cflag;
+ baud = tty_get_baud_rate(port->tty);
/* If the baud rate is to be updated*/
- if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
- switch (cflag & CBAUD) {
- /*
- * The baud rates which are commented out below
- * appear to be supported by the device
- * but are non-standard
- */
- case B0: baud = 0; break;
- case B600: baud = 600; break;
- case B1200: baud = 1200; break;
- case B1800: baud = 1800; break;
- case B2400: baud = 2400; break;
- case B4800: baud = 4800; break;
- /*case B7200: baud = 7200; break;*/
- case B9600: baud = 9600; break;
- /*ase B14400: baud = 14400; break;*/
- case B19200: baud = 19200; break;
- /*case B28800: baud = 28800; break;*/
- case B38400: baud = 38400; break;
- /*case B55854: baud = 55054; break;*/
- case B57600: baud = 57600; break;
- case B115200: baud = 115200; break;
- /*case B127117: baud = 127117; break;*/
- case B230400: baud = 230400; break;
- case B460800: baud = 460800; break;
- case B921600: baud = 921600; break;
- /*case B3686400: baud = 3686400; break;*/
+ if (baud != tty_termios_baud_rate(old_termios)) {
+ switch (baud) {
+ case 0:
+ case 600:
+ case 1200:
+ case 1800:
+ case 2400:
+ case 4800:
+ case 7200:
+ case 9600:
+ case 14400:
+ case 19200:
+ case 28800:
+ case 38400:
+ case 55854:
+ case 57600:
+ case 115200:
+ case 127117:
+ case 230400:
+ case 460800:
+ case 921600:
+ case 3686400:
+ break;
default:
- dev_err(&port->dev, "cp2101 driver does not "
- "support the baudrate requested\n");
+ baud = 9600;
break;
}