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serial: imx: drop CTS/RTS handling from shutdown

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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>
This commit is contained in:
Sebastian Reichel
2018-05-24 19:30:23 +02:00
committed by Greg Kroah-Hartman
parent e66003f55d
commit 0fdf178785
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/imx.c
+1 -1
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@@ -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);