From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Greg Kroah-Hartman
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<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 6/9] dt/bindings: Add a serial/UART attached device binding
Date: Fri, 6 Jan 2017 14:41:42 -0600 [thread overview]
Message-ID: <CAL_JsqLxRmSkuDUgTY04C1JUKVz+A8djHTfB5ZoSM3FfUowbMw@mail.gmail.com> (raw)
In-Reply-To: <3363597.IVJfReRkL0@wuerfel>
On Fri, Jan 6, 2017 at 1:21 PM, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org> wrote:
> On Friday, January 6, 2017 10:26:32 AM CET Rob Herring wrote:
>> +Optional Properties:
>> +
>> +- reg : A single cell representing the port/line number of the
>> + host UART. Only used if the host UART is a single node
>> + with multiple ports.
>> +
>
> If there is a 'reg' property in the child, I guess we should also
> document a #address-cells/#size-cells value for the parent.
>
> Can you give an example of a multi-port serial device we support?
A 16550 DUART chip. Not sure if we have any bindings for one though.
Maybe the chip would be the parent node containing 2 child ns16550
nodes.
> I was expecting that we already need a device node per port anyway,
> to make the console work.
Yes, good point. I think I'll just drop it for now.
Rob
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next prev parent reply other threads:[~2017-01-06 20:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170106162635.19677-1-robh@kernel.org>
[not found] ` <20170106162635.19677-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-01-06 16:26 ` [PATCH 6/9] dt/bindings: Add a serial/UART attached device binding Rob Herring
2017-01-06 19:21 ` Arnd Bergmann
2017-01-06 20:41 ` Rob Herring [this message]
[not found] ` <20170106162635.19677-7-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-01-10 19:50 ` One Thousand Gnomes
2017-01-10 21:41 ` Pavel Machek
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