linux-kernel - [PATCH 1/2] serial: bfin-uart: Add tty ASYNC_CTS

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Message-ID: <1323079991-4855-1-git-send-email-sonic.adi@gmail.com>
Date:	Mon, 5 Dec 2011 18:13:10 +0800
From:	Sonic Zhang <sonic.adi@...il.com>
To:	Greg Kroah-Hartman <gregkh@...e.de>, <linux-serial@...r.kernel.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	<uclinux-dist-devel@...ckfin.uclinux.org>,
	Sonic Zhang <sonic.zhang@...log.com>
Subject: [PATCH 1/2] serial: bfin-uart: Add tty ASYNC_CTS_FLOW flag to do CTS flow control.

From: Sonic Zhang <sonic.zhang@...log.com>

Signed-off-by: Sonic Zhang <sonic.zhang@...log.com>
---
 drivers/tty/serial/bfin_uart.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 61af5ae..2afd307 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -1377,8 +1377,10 @@ static int bfin_serial_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 		if (res == NULL)
 			uart->cts_pin = -1;
-		else
+		else {
 			uart->cts_pin = res->start;
+			uart->port.flags |= ASYNC_CTS_FLOW;
+		}
 
 		res = platform_get_resource(pdev, IORESOURCE_IO, 1);
 		if (res == NULL)
-- 
1.7.0.4


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