serial: sccnxp: Report actual baudrate back to core
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 05d767c..a7a6659 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -213,7 +213,7 @@
{ 0, 0, 0, 0 }
};
-static void sccnxp_set_baud(struct uart_port *port, int baud)
+static int sccnxp_set_baud(struct uart_port *port, int baud)
{
struct sccnxp_port *s = dev_get_drvdata(port->dev);
int div_std, tmp_baud, bestbaud = baud, besterr = -1;
@@ -244,8 +244,11 @@
sccnxp_port_write(port, SCCNXP_ACR_REG, acr | ACR_TIMER_MODE);
sccnxp_port_write(port, SCCNXP_CSR_REG, (csr << 4) | csr);
- dev_dbg(port->dev, "Baudrate desired: %i, calculated: %i\n",
- baud, bestbaud);
+ if (baud != bestbaud)
+ dev_dbg(port->dev, "Baudrate desired: %i, calculated: %i\n",
+ baud, bestbaud);
+
+ return bestbaud;
}
static void sccnxp_enable_irq(struct uart_port *port, int mask)
@@ -587,11 +590,14 @@
baud = uart_get_baud_rate(port, termios, old, 50,
(s->flags & SCCNXP_HAVE_MR0) ?
230400 : 38400);
- sccnxp_set_baud(port, baud);
+ baud = sccnxp_set_baud(port, baud);
/* Update timeout according to new baud rate */
uart_update_timeout(port, termios->c_cflag, baud);
+ if (tty_termios_baud_rate(termios))
+ tty_termios_encode_baud_rate(termios, baud, baud);
+
/* Enable RX & TX */
sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_ENABLE | CR_TX_ENABLE);