Hi,
I don't see this patch in mainline.:-(
Sorry for noise if this patch has applied by Greg.
在 2016年01月04日 15:54, Jeffy Chen 写道:
> Currently, when tring to set up a serial console with a higher
> baud rate, it would fallback to 921600.
>
> Tested-by: Jianqun Xu <[email protected]>
> Signed-off-by: Jeffy Chen <[email protected]>
Verified on RK3228/RK3229 SoCs.
Tested-by: Caesar Wang <[email protected]>
>
> ---
>
> 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;