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authorGraf Yang <graf.yang@analog.com>2010-05-23 10:40:13 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-06-04 22:37:17 +0200
commitca3e442e8dbbe2551473f36f0e7797b1d3205f5a (patch)
tree201f752dd116a66b777bc35ad83cda2aa2b0deb3 /drivers/serial/bfin_5xx.c
parentserial_cs: add and sort IDs for serial and modem cards (diff)
downloadlinux-ca3e442e8dbbe2551473f36f0e7797b1d3205f5a.tar.xz
linux-ca3e442e8dbbe2551473f36f0e7797b1d3205f5a.zip
serial: bfin_5xx: IRDA is not affected by anomaly 05000230
Anomaly 05000230 (over sampling of the UART STOP bit) applies only when the peripheral is operating in UART mode. So drop the anomaly handling when the UART is in IRDA mode. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/serial/bfin_5xx.c')
-rw-r--r--drivers/serial/bfin_5xx.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 96f7e7484fee..a78652b21e40 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -869,7 +869,12 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
}
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
- quot = uart_get_divisor(port, baud) - ANOMALY_05000230;
+ quot = uart_get_divisor(port, baud);
+
+ /* If discipline is not IRDA, apply ANOMALY_05000230 */
+ if (termios->c_line != N_IRDA)
+ quot -= ANOMALY_05000230;
+
spin_lock_irqsave(&uart->port.lock, flags);
UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15);