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serial: bfin_5xx: IRDA is not affected by anomaly 05000230

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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>
This commit is contained in:
Graf Yang 2010-05-23 04:40:13 -04:00 committed by Greg Kroah-Hartman
parent 99ec88f345
commit ca3e442e8d
1 changed files with 6 additions and 1 deletions
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7
drivers/serial/bfin_5xx.c
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@ -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);