pch_uart: fix uart clock setting issue

Currently, uart clock is not set correctly.
This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 68855351c76e83803ef6623ac1bace6625098b81..189886122516694b02f45608e705b77f62a29ca9 100644 (file)
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1089,7 +1089,12 @@ static int pch_uart_startup(struct uart_port *port)
 
        priv = container_of(port, struct eg20t_port, port);
        priv->tx_empty = 1;
-       port->uartclk = priv->base_baud;
+
+       if (port->uartclk)
+               priv->base_baud = port->uartclk;
+       else
+               port->uartclk = priv->base_baud;
+
        pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_ALL_INT);
        ret = pch_uart_hal_set_line(priv, default_baud,
                              PCH_UART_HAL_PARITY_NONE, PCH_UART_HAL_8BIT,