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From: Greg Kroah-Hartman on 4 Jun 2010 17:00
From: Graf Yang <graf.yang(a)analog.com>

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(a)analog.com>
Signed-off-by: Mike Frysinger <vapier(a)gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>
---
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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Prev: [PATCH 02/11] serial_cs: add and sort IDs for serial and modem cards
Next: [PATCH 05/11] TTY/n_gsm: potential double lock