linux-kernel - Re: [PATCH v2] serial: amba-pl011: add RS485 support

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Date:   Sat, 26 Jun 2021 05:41:45 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Lino Sanfilippo <LinoSanfilippo@....de>
Cc:     Greg KH <gregkh@...uxfoundation.org>, linux@...linux.org.uk,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] serial: amba-pl011: add RS485 support

Hi,

On 25. 06. 21, 13:21, Lino Sanfilippo wrote:
> Thats right, the logic has slightly changed. I thought this does not matter as long as
> we make sure that exactly one of both ON_SEND or AFTER_SEND is set.

I actually don't know. But I would remain consistent with other drivers.

> We can stick with the logic
> in serial8250_em485_config() (i.e. always set ON_SEND and delete AFTER_SEND in case
> of an invalid setting), but I think this will require more than the four lines that we
> have now (especially if we want to avoid the !!).

What if you used only a single !?

thanks,
-- 
js
suse labs