[PATCH 1/2] serial: bfin_5xx: IRDA is not affected by anomaly 05000230
From: Mike Frysinger
Date: Sun May 23 2010 - 04:36:33 EST
From: Graf Yang <graf.yang@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
drivers/serial/bfin_5xx.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 96f7e74..a78652b 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);
--
1.7.1
--
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