Blackfin Serial Driver: handle anomaly 05000231

[net-next-2.6.git] / drivers / serial / bfin_5xx.c

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index ab583ef3a305aeb08fa833085d5fec3cd3efbd3f..64603f5bb7039efdedaa05810c0c99005cf3cf91 100644 (file)
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -828,8 +828,16 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
                        __func__);
        }
 
-       if (termios->c_cflag & CSTOPB)
-               lcr |= STB;
+       /* Anomaly notes:
+        *  05000231 -  STOP bit is always set to 1 whatever the user is set.
+        */
+       if (termios->c_cflag & CSTOPB) {
+               if (ANOMALY_05000231)
+                       printk(KERN_WARNING "STOP bits other than 1 is not "
+                               "supported in case of anomaly 05000231.\n");
+               else
+                       lcr |= STB;
+       }
        if (termios->c_cflag & PARENB)
                lcr |= PEN;
        if (!(termios->c_cflag & PARODD))