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Date:   Fri, 22 Mar 2019 16:44:10 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     stable@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...aro.org>,
        Chunyan Zhang <zhang.lyra@...il.com>
Cc:     Wei Qiao <wei.qiao@...eadtrum.com>,
        Chunyan Zhang <chunyan.zhang@...eadtrum.com>,
        Arnd Bergmann <arnd@...db.de>,
        Lanqing Liu <lanqing.liu@...soc.com>,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [BACKPORT 4.4.y 19/25] serial: sprd: adjust TIMEOUT to a big value

From: Wei Qiao <wei.qiao@...eadtrum.com>

SPRD_TIMEOUT was 256, which is too small to wait until the status
switched to workable in a while loop, so that the earlycon could
not work correctly.

Signed-off-by: Wei Qiao <wei.qiao@...eadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@...eadtrum.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
(cherry picked from commit e1dc9b08051a2c2e694edf48d1e704f07c7c143c)
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/tty/serial/sprd_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 1e302caaa450..176f0a2bf9d9 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -36,7 +36,7 @@
 #define SPRD_FIFO_SIZE		128
 #define SPRD_DEF_RATE		26000000
 #define SPRD_BAUD_IO_LIMIT	3000000
-#define SPRD_TIMEOUT		256
+#define SPRD_TIMEOUT		256000
 
 /* the offset of serial registers and BITs for them */
 /* data registers */
-- 
2.20.0

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