Devicetree
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From: David Gibson <david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org>
To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	John Bonesio <bones-RkXMcIGFT/TR7s880joybQ@public.gmane.org>
Subject: Re: Proposal: new device-tree syntax and semantics for extendinginformation from included dts files
Date: Sat, 16 Oct 2010 18:10:10 +1100	[thread overview]
Message-ID: <20101016071010.GG5036@yookeroo> (raw)
In-Reply-To: <AANLkTinzf3vhs_OUUeiVYOFbOPLFHA+dei810H2gyDGS-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Fri, Oct 15, 2010 at 05:58:06PM -0600, Grant Likely wrote:
> On Fri, Oct 15, 2010 at 2:20 PM, Stephen Neuendorffer
> <stephen.neuendorffer-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org> wrote:
> > The ambiguity between
> > bar; (referring to a property)
> > and
> > /trim-node/ bar; (referring to a node)
> >
> > Seems awkward, but perhaps unavoidable.  At the very least, I don't have anything better to suggest.. :)
> >
> > perhaps in an ideal world, open firmware would originally have distinguished these by
> > having
> >
> > bar =;   // Create an empty property
> > bar {};  // Create an empty node
> >
> > or something...
> 
> Actually, none of this is OpenFirmware related.  This syntax was
> created for use with dtc which is completely independent of
> OpenFirmware.  Only the device tree structure and usage conventions
> are shared with dtc.

That's true.  However, I'm pretty sure there was actually a reason
related to existing OF usage why I made the syntax for an empty
property 'thing;' rather than 'thing =;'.  I no longer remember what
it was, though.

> However, we've already got a large userbase so making an incompatible
> source file format change would be unbelievably painful.

That too.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

  parent reply	other threads:[~2010-10-16  7:10 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1286920561.4535.1315.camel@riker>
2010-10-13 23:17 ` Proposal: new device-tree syntax and semantics for extending information from included dts files Grant Likely
     [not found]   ` <20101013231747.GD15286-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-10-13 23:41     ` Proposal: new device-tree syntax and semantics for extendinginformation " Stephen Neuendorffer
     [not found]       ` <d223e561-ed6e-44c2-8a99-8959e85ae022-+Ck8Kgl/v0/nHLUNXTEFU7jjLBE8jN/0@public.gmane.org>
2010-10-14  0:45         ` David Gibson
2010-10-14  1:46           ` Grant Likely
     [not found]             ` <20101014014657.GF15286-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-10-14  3:31               ` David Gibson
2010-10-14 16:38           ` Stephen Neuendorffer
     [not found]             ` <21eeaef0-fc78-47c9-b1c5-bfefaa55fb85-RaUQJvECHis6W+Ha+8ZLibjjLBE8jN/0@public.gmane.org>
2010-10-15 15:18               ` Grant Likely
     [not found]                 ` <20101015151840.GB32705-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-10-15 16:10                   ` Stephen Neuendorffer
     [not found]                     ` <b04d95cc-c35b-4597-8fbe-f7c48f23ef92-+Ck8Kgl/v09DUMyIFHz4objjLBE8jN/0@public.gmane.org>
2010-10-15 19:32                       ` Grant Likely
     [not found]                         ` <AANLkTinPWv94Xoz+mDxiE=KujQYAyQj9PsPWHEORypJ3-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-15 19:48                           ` Stephen Neuendorffer
     [not found]                             ` <eba820f8-3e4f-4d57-9024-39cc562a99eb-+Ck8Kgl/v0/0H8R8xLlBI7jjLBE8jN/0@public.gmane.org>
2010-10-15 19:56                               ` Grant Likely
     [not found]                                 ` <AANLkTikWfMXEbdwFY6FNoMwuD6fC74Kohtr3QRJqSrM0-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-15 19:59                                   ` Stephen Neuendorffer
     [not found]                                     ` <ed27a45d-3607-41e3-831f-1d7e3dd44379-RaUQJvECHis6W+Ha+8ZLibjjLBE8jN/0@public.gmane.org>
2010-10-15 20:11                                       ` Grant Likely
     [not found]                                         ` <AANLkTikzyDFiQZzPmeos6pf_DS33RvkfER+Mz0jceSJy-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-15 20:20                                           ` Stephen Neuendorffer
     [not found]                                             ` <4da0557a-d204-4e38-8a82-b0996a9a5af1-RaUQJvECHitCYczPSvLbDrjjLBE8jN/0@public.gmane.org>
2010-10-15 23:58                                               ` Grant Likely
     [not found]                                                 ` <AANLkTinzf3vhs_OUUeiVYOFbOPLFHA+dei810H2gyDGS-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-16  7:10                                                   ` David Gibson [this message]
2010-10-15 20:35                                           ` John Bonesio
2010-10-15 21:25                                             ` John Bonesio
2010-10-15 23:51                                             ` Grant Likely
2010-10-16  7:05                       ` David Gibson
2010-10-14  0:38     ` Proposal: new device-tree syntax and semantics for extending information " David Gibson
2010-10-14  1:40       ` Grant Likely
     [not found]         ` <20101014014036.GE15286-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-10-14  1:49           ` Grant Likely
2010-10-14  3:08           ` John Bonesio
2010-10-14  3:37             ` Grant Likely
2010-10-14  4:00             ` David Gibson
2010-10-14  3:48           ` David Gibson
2010-10-14  4:54             ` Grant Likely
     [not found]               ` <20101014045413.GK15286-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-10-16  7:02                 ` David Gibson
2010-10-16 18:57                   ` Grant Likely
     [not found]                     ` <AANLkTi=QaV5KvhFzyci2yykmsV9+Zz71vmoRrrFDGvK--JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-16 19:50                       ` John Bonesio
2010-10-17  6:17                         ` Grant Likely
2010-10-19  2:48                       ` David Gibson

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