From: Arnd Bergmann <arnd@arndb.de>
To: stable@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang@linaro.org>,
Chunyan Zhang <zhang.lyra@gmail.com>
Cc: Wei Qiao <wei.qiao@spreadtrum.com>,
Chunyan Zhang <chunyan.zhang@spreadtrum.com>,
Arnd Bergmann <arnd@arndb.de>,
Lanqing Liu <lanqing.liu@unisoc.com>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [BACKPORT 4.4.y 19/25] serial: sprd: adjust TIMEOUT to a big value
Date: Fri, 22 Mar 2019 16:44:10 +0100 [thread overview]
Message-ID: <20190322154425.3852517-20-arnd@arndb.de> (raw)
In-Reply-To: <20190322154425.3852517-1-arnd@arndb.de>
From: Wei Qiao <wei.qiao@spreadtrum.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@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit e1dc9b08051a2c2e694edf48d1e704f07c7c143c)
Signed-off-by: Arnd Bergmann <arnd@arndb.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
next prev parent reply other threads:[~2019-03-22 15:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 15:43 [BACKPORT 4.4.y 00/25] candidates from spreadtrum 4.4 product kernel Arnd Bergmann
2019-03-22 15:44 ` Arnd Bergmann [this message]
2019-03-26 1:21 ` [BACKPORT 4.4.y 19/25] serial: sprd: adjust TIMEOUT to a big value Greg KH
2019-03-22 15:44 ` [BACKPORT 4.4.y 23/25] serial: sprd: clear timeout interrupt only rather than all interrupts Arnd Bergmann
2019-03-26 1:34 ` Greg KH
2019-03-26 2:18 ` [BACKPORT 4.4.y 00/25] candidates from spreadtrum 4.4 product kernel Greg KH
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