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SubjectRe: [PATCH 2/2] serial: 8250_fintek: Disable delays for ports != 0
ping?


On Mon, Nov 6, 2017 at 11:49 AM, Ricardo Ribalda Delgado
<ricardo.ribalda@gmail.com> wrote:
> According to the datasheet, only the first port supports delay before
> send and delay after send.
>
> Reported-by: "Ji-Ze Hong (Peter Hong)" <hpeter@gmail.com>
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
> ---
> drivers/tty/serial/8250/8250_fintek.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
> index ca7e96f9f080..61745d4bea31 100644
> --- a/drivers/tty/serial/8250/8250_fintek.c
> +++ b/drivers/tty/serial/8250/8250_fintek.c
> @@ -216,6 +216,12 @@ static int fintek_8250_rs485_config(struct uart_port *port,
> rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |
> SER_RS485_RTS_AFTER_SEND;
>
> + /* Only the first port supports delays */
> + if (pdata->index) {
> + rs485->delay_rts_before_send = 0;
> + rs485->delay_rts_after_send = 0;
> + }
> +
> if (rs485->delay_rts_before_send) {
> rs485->delay_rts_before_send = 1;
> config |= TXW4C_IRA;
> --
> 2.14.2
>



--
Ricardo Ribalda

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