summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/tty/serial/8250/8250_core.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index df8a5aa96bc6..8e3302c6bbff 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2413,8 +2413,9 @@ static void serial8250_shutdown(struct uart_port *port)
serial8250_do_shutdown(port);
}
-static unsigned int serial8250_get_divisor(struct uart_port *port, unsigned int baud)
+static unsigned int serial8250_get_divisor(struct uart_8250_port *up, unsigned int baud)
{
+ struct uart_port *port = &up->port;
unsigned int quot;
/*
@@ -2430,6 +2431,12 @@ static unsigned int serial8250_get_divisor(struct uart_port *port, unsigned int
else
quot = uart_get_divisor(port, baud);
+ /*
+ * Oxford Semi 952 rev B workaround
+ */
+ if (up->bugs & UART_BUG_QUOT && (quot & 0xff) == 0)
+ quot++;
+
return quot;
}
@@ -2478,13 +2485,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
baud = uart_get_baud_rate(port, termios, old,
port->uartclk / 16 / 0xffff,
port->uartclk / 16);
- quot = serial8250_get_divisor(port, baud);
-
- /*
- * Oxford Semi 952 rev B workaround
- */
- if (up->bugs & UART_BUG_QUOT && (quot & 0xff) == 0)
- quot++;
+ quot = serial8250_get_divisor(up, baud);
if (up->capabilities & UART_CAP_FIFO && port->fifosize > 1) {
/* NOTE: If fifo_bug is not set, a user can set RX_trigger. */