From: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Date: Thu, 24 May 2018 17:30:23 +0000 (+0200)
Subject: serial: imx: drop CTS/RTS handling from shutdown
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0fdf17878560c6b561bc80a6d18978b1ee6c6c86;p=linux.git

serial: imx: drop CTS/RTS handling from shutdown

According to Documentation/serial/driver the shutdown function should
not disable RTS, so drop it.

Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 80bed82e0e0e0..e146d66bf80c1 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1450,7 +1450,7 @@ static void imx_uart_shutdown(struct uart_port *port)
 
 	spin_lock_irqsave(&sport->port.lock, flags);
 	ucr2 = imx_uart_readl(sport, UCR2);
-	ucr2 &= ~(UCR2_TXEN | UCR2_CTSC | UCR2_CTS | UCR2_ATEN);
+	ucr2 &= ~(UCR2_TXEN | UCR2_ATEN);
 	imx_uart_writel(sport, ucr2, UCR2);
 	spin_unlock_irqrestore(&sport->port.lock, flags);