net/irda: bfin_sir: IRDA is not affected by anomaly 05000230
authorGraf Yang <graf.yang@analog.com>
Sat, 22 May 2010 22:00:10 +0000 (22:00 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 24 May 2010 06:57:45 +0000 (23:57 -0700)
Anomaly 05000230 (over sampling of the UART STOP bit) applies only when
the peripheral is operating in UART mode.  So drop the anomaly handling
in the IRDA code.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/irda/bfin_sir.c

index 911c082cee5acfa258211b117c1f018bcd9dbb49..f940dfa1f7f84e713033057605bfb069618ec0bb 100644 (file)
@@ -107,8 +107,12 @@ static int bfin_sir_set_speed(struct bfin_sir_port *port, int speed)
        case 57600:
        case 115200:
 
-               quot = (port->clk + (8 * speed)) / (16 * speed)\
-                                               - ANOMALY_05000230;
+               /*
+                * IRDA is not affected by anomaly 05000230, so there is no
+                * need to tweak the divisor like he UART driver (which will
+                * slightly speed up the baud rate on us).
+                */
+               quot = (port->clk + (8 * speed)) / (16 * speed);
 
                do {
                        udelay(utime);