On 01/25/2016 04:00 AM, Greg Farrell wrote:
>
> Enable the UPF_BOOT_AUTOCONF flag in serial_omap_probe().
> This will cause serial_omap_config_port() to be run and
> the hardware to correctly be flagged as supporting hardware
> and software flow-control.
>
> Without this, it is not possible to enable flow control.
Won't this turn on h/w flow control for designs where RTS/CTS
is unconnected?
> Signed-off-by: Greg Farrell <greg@xxxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/omap-serial.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
> index b645f92..5e82238 100644
> --- a/drivers/tty/serial/omap-serial.c
> +++ b/drivers/tty/serial/omap-serial.c
> @@ -1664,7 +1664,10 @@ static int serial_omap_probe(struct platform_device *pdev)
> sprintf(up->name, "OMAP UART%d", up->port.line);
> up->port.mapbase = mem->start;
> up->port.membase = base;
> - up->port.flags = omap_up_info->flags;
> + /*
> + * Enable UPF_BOOT_AUTOCONF so that serial_omap_config_port will execute
> + */
> + up->port.flags = omap_up_info->flags | UPF_BOOT_AUTOCONF;
> up->port.uartclk = omap_up_info->uartclk;
> up->port.rs485_config = serial_omap_config_rs485;
> if (!up->port.uartclk) {
--
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