4.4-stable review patch. If anyone has any objections, please let me know.
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From: Wei Qiao wei.qiao@spreadtrum.com
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@spreadtrum.com Signed-off-by: Chunyan Zhang chunyan.zhang@spreadtrum.com Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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 */