From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Jon Ringle <jon@ringle.org>
Cc: Alexander Shiyan <shc_work@mail.ru>,
gregkh@linuxfoundation.org, jslaby@suse.cz,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Jon Ringle <jringle@gridpoint.com>
Subject: Re: [PATCH] RFC: WIP: sc16is7xx [v0.4]
Date: Mon, 10 Mar 2014 14:20:32 +0000 [thread overview]
Message-ID: <20140310142032.47e680b5@alan.etchedpixels.co.uk> (raw)
In-Reply-To: <alpine.DEB.2.02.1403100744230.23103@jringle-ubuntu>
On Mon, 10 Mar 2014 07:50:12 -0400 (EDT)
Jon Ringle <jon@ringle.org> wrote:
>
> On Mon, 10 Mar 2014, Alexander Shiyan wrote:
>
> > Понедельник, 10 марта 2014, 2:26 -04:00 от jon@ringle.org:
> > > From: Jon Ringle <jringle@gridpoint.com>
> > ...
> > > +config SERIAL_SC16IS7XX
> > > + tristate "SC16IS7xx RS485 serial support"
> > > + select SERIAL_CORE
> > > + default n
> > > + help
> > > + This selects support for SC16IS7xx for use as a RS485 serial port
> >
> > Documentation says:
> > The SC16IS740/750/760 is a slave I²C-bus/SPI interface to a single-channel
> > high performance UART.
> > ...
> > The SC16IS740/750/760 also provides additional advanced features such
> > as auto hardware and software flow control, automatic RS-485 support...
> >
> > So why do you position this chip as RS485 only? Automatic direction for
> > RS485 is just a feature as an addition for standart UART.
>
> You're right. This is just how we are using the chip in our board. Would a
> configuration flag in platform_data make sense to use the auto rs485
> direction?
We have interfaces for RS485 runtime configuration so it could be
extended to set a lot of parameters that way, but I think for now it
might not be a bad idea to support rs485 auto direction in/out/off in the
platform data.
Alan
next prev parent reply other threads:[~2014-03-10 14:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-10 6:26 jon
2014-03-10 7:02 ` Alexander Shiyan
2014-03-10 11:50 ` Jon Ringle
2014-03-10 14:20 ` One Thousand Gnomes [this message]
2014-03-10 16:14 ` Alexander Shiyan
2014-03-11 18:20 ` Jon Ringle
2014-03-11 18:44 ` Jon Ringle
2014-03-10 14:17 ` One Thousand Gnomes
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