[PATCH 4.4 029/131] serial: sprd: adjust TIMEOUT to a big value

From: Greg Kroah-Hartman
Date: Mon Apr 01 2019 - 13:30:46 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Wei Qiao <wei.qiao@xxxxxxxxxxxxxx>

commit e1dc9b08051a2c2e694edf48d1e704f07c7c143c upstream.

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@xxxxxxxxxxxxxx>
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/tty/serial/sprd_serial.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- 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 */