From: baruch@tkos.co.il (Baruch Siach)
To: linux-arm-kernel@lists.infradead.org
Subject: How do /dev/ttyS* devices get assigned from the device tree?
Date: Sat, 9 Jul 2016 22:37:31 +0300 [thread overview]
Message-ID: <20160709193731.GA3870@tarshish> (raw)
In-Reply-To: <CAF_dkJBmgxyQLNtJqXWyQtzsmcK3QCqjYugsMG7MXGUdjL6nvA@mail.gmail.com>
Hi Patrick,
On Fri, Jul 08, 2016 at 12:58:06PM -0400, Patrick Doyle wrote:
> Do they show up numerically in the sequence in which they appear in
> the device tree?
>
> Where could I learn more?
Adding devicetree ML to Cc.
You may use an "aliases" node for that, if your UART driver supports that. The
8250/16550 driver does. See arch/arm/boot/dts/aspeed-ast2500-evb.dts, for
example. Note though that the use of aliases for this purpose is contentious.
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
WARNING: multiple messages have this Message-ID (diff)
From: Baruch Siach <baruch@tkos.co.il>
To: Patrick Doyle <wpdster@gmail.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: How do /dev/ttyS* devices get assigned from the device tree?
Date: Sat, 9 Jul 2016 22:37:31 +0300 [thread overview]
Message-ID: <20160709193731.GA3870@tarshish> (raw)
In-Reply-To: <CAF_dkJBmgxyQLNtJqXWyQtzsmcK3QCqjYugsMG7MXGUdjL6nvA@mail.gmail.com>
Hi Patrick,
On Fri, Jul 08, 2016 at 12:58:06PM -0400, Patrick Doyle wrote:
> Do they show up numerically in the sequence in which they appear in
> the device tree?
>
> Where could I learn more?
Adding devicetree ML to Cc.
You may use an "aliases" node for that, if your UART driver supports that. The
8250/16550 driver does. See arch/arm/boot/dts/aspeed-ast2500-evb.dts, for
example. Note though that the use of aliases for this purpose is contentious.
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
next prev parent reply other threads:[~2016-07-09 19:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-08 16:58 How do /dev/ttyS* devices get assigned from the device tree? Patrick Doyle
2016-07-09 19:37 ` Baruch Siach [this message]
2016-07-09 19:37 ` Baruch Siach
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160709193731.GA3870@tarshish \
--to=baruch@tkos.co.il \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.