Messages in this thread Patch in this message | | | From | Ilpo Järvinen <> | Subject | [PATCH 3/8] serial: dz: Assume previous baudrate is valid | Date | Tue, 16 Aug 2022 14:57:34 +0300 |
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Assume previously used termios has a valid baudrate and use it directly.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/tty/serial/dz.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c index 2e21acf39720..3eaf4e85bfdd 100644 --- a/drivers/tty/serial/dz.c +++ b/drivers/tty/serial/dz.c @@ -592,9 +592,12 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios, baud = uart_get_baud_rate(uport, termios, old_termios, 50, 9600); bflag = dz_encode_baud_rate(baud); - if (bflag < 0) { /* Try to keep unchanged. */ - baud = uart_get_baud_rate(uport, old_termios, NULL, 50, 9600); - bflag = dz_encode_baud_rate(baud); + if (bflag < 0) { + if (old_termios) { + /* Keep unchanged. */ + baud = tty_termios_baud_rate(old_termios); + bflag = dz_encode_baud_rate(baud); + } if (bflag < 0) { /* Resort to 9600. */ baud = 9600; bflag = DZ_B9600; -- 2.30.2
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