linux-kernel - [PATCH linux-next 5/8] pch_uart: fix uart clock setting issue

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Message-Id: <1298422999-4050-5-git-send-email-tomoya-linux@dsn.okisemi.com>
Date:	Wed, 23 Feb 2011 10:03:16 +0900
From:	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
To:	Greg Kroah-Hartman <gregkh@...e.de>,
	Jesper Juhl <jj@...osbits.net>, Jiri Kosina <jkosina@...e.cz>,
	linux-kernel@...r.kernel.org
Cc:	qi.wang@...el.com, yong.y.wang@...el.com, joel.clark@...el.com,
	kok.howg.ewe@...el.com, toshiharu-linux@....okisemi.com,
	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
Subject: [PATCH linux-next 5/8] 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@....okisemi.com>
---
 drivers/tty/serial/pch_uart.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 6807f61..7179202 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1088,7 +1088,12 @@ 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,
-- 
1.7.3.4

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