Currently, when tring to set up a serial console with a higher
baud rate, it would fallback to 921600.
Tested-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
Signed-off-by: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
---
Changes in v2:
remove baud_rates as Alan's suggestion.
drivers/tty/serial/serial_core.c | 33 ++-------------------------------
1 file changed, 2 insertions(+), 31 deletions(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index def5199..150547c 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1892,26 +1892,6 @@ uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow)
}
EXPORT_SYMBOL_GPL(uart_parse_options);
-struct baud_rates {
- unsigned int rate;
- unsigned int cflag;
-};
-
-static const struct baud_rates baud_rates[] = {
- { 921600, B921600 },
- { 460800, B460800 },
- { 230400, B230400 },
- { 115200, B115200 },
- { 57600, B57600 },
- { 38400, B38400 },
- { 19200, B19200 },
- { 9600, B9600 },
- { 4800, B4800 },
- { 2400, B2400 },
- { 1200, B1200 },
- { 0, B38400 }
-};
-
/**
* uart_set_options - setup the serial console parameters
* @port: pointer to the serial ports uart_port structure
@@ -1927,7 +1907,6 @@ uart_set_options(struct uart_port *port, struct console *co,
{
struct ktermios termios;
static struct ktermios dummy;
- int i;
/*
* Ensure that the serial console lock is initialised
@@ -1942,16 +1921,8 @@ uart_set_options(struct uart_port *port, struct console *co,
memset(&termios, 0, sizeof(struct ktermios));
- termios.c_cflag = CREAD | HUPCL | CLOCAL;
-
- /*
- * Construct a cflag setting.
- */
- for (i = 0; baud_rates[i].rate; i++)
- if (baud_rates[i].rate <= baud)
- break;
-
- termios.c_cflag |= baud_rates[i].cflag;
+ termios.c_cflag |= CREAD | HUPCL | CLOCAL;
+ tty_termios_encode_baud_rate(&termios, baud, baud);
if (bits == 7)
termios.c_cflag |= CS7;
--
2.1.4
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