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From: Richard Cochran <richardcochran@gmail.com>
To: Tomasz Figa <tomasz.figa@gmail.com>
Cc: mbizon@freebox.fr, Mark Rutland <mark.rutland@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"ksummit-2013-discuss@lists.linuxfoundation.org" 
	<ksummit-2013-discuss@lists.linuxfoundation.org>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Ian Campbell <ian.campbell@citrix.com>,
	Pawel Moll <Pawel.Moll@arm.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Domenico Andreoli <cavokz@gmail.com>,
	"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
	Olof Johansson <olof@lixom.net>, Mark Brown <broonie@kernel.org>,
	Arend van Spriel <arend@broadcom.com>,
	Dave P Martin <Dave.Martin@arm.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [Ksummit-2013-discuss] DT bindings as ABI [was: Do we have people interested in device tree janitoring / cleanup?]
Date: Wed, 31 Jul 2013 21:12:09 +0200	[thread overview]
Message-ID: <20130731191209.GA8027@netboy> (raw)
In-Reply-To: <1999586.84BnWE5EUh@thinkpad>

On Wed, Jul 31, 2013 at 05:23:35PM +0200, Tomasz Figa wrote:
> 
> I said it many, many times, that a) and b) I proposed are just two extremes. 
> It is unlikely that an extreme solution will be the best option to choose. I 
> am strongly for something in the middle, just like I wrote in several of my 
> previous replies.
> 
> This is something that should be commented, not those extreme options.

We are saying that pursuing a) is useless because it adds pain and
complexity without adding benefit. I simply don't buy your argument
that DT makes a better platform data, but that is besides the point.

I had said, think about the users.  You said, what users?  I wrote a
clear and concise use case.  You said, lets think about a) and b) and
all the shades of gray in between.

In order to support the use case, you will have to provide a stable
ABI. You can't have a compromise solution. At the end of the day,
either you have a stable ABI, or you don't.

It was apparent to me that the arm/dt thing has been meandering around
since its inception, but what was surprising is that people were doing
this on purpose, and now they are defending this. Why can't we get a
firm commitment on having a stable ABI?

Thanks,
Richard



  reply	other threads:[~2013-07-31 19:12 UTC|newest]

Thread overview: 142+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-25 16:09 DT bindings as ABI [was: Do we have people interested in device tree janitoring / cleanup?] Olof Johansson
2013-07-25 17:57 ` Mark Rutland
2013-07-25 18:05   ` Stephen Warren
2013-07-25 18:25     ` Olof Johansson
2013-07-25 18:50       ` Stephen Warren
2013-07-25 19:30       ` [Ksummit-2013-discuss] " Mark Brown
2013-07-25 18:29     ` Mark Rutland
2013-07-25 18:48       ` Richard Cochran
2013-07-25 18:53         ` Stephen Warren
2013-07-25 21:41           ` Domenico Andreoli
2013-07-26  4:43           ` Richard Cochran
2013-07-25 21:37         ` Jason Gunthorpe
2013-07-26  4:54           ` Richard Cochran
2013-07-26 13:42             ` Rob Herring
2013-07-26 17:15             ` Jason Gunthorpe
2013-07-27  8:48               ` Richard Cochran
2013-07-27 10:40                 ` [Ksummit-2013-discuss] " Mark Brown
2013-07-27 17:37                   ` Richard Cochran
2013-07-27 17:57                     ` David Lang
2013-07-27 18:17                       ` Richard Cochran
2013-07-28 11:27                     ` Mark Brown
2013-07-29 17:54                 ` Jason Gunthorpe
2013-07-29 18:16                   ` Russell King - ARM Linux
2013-07-29 18:40                     ` Jason Gunthorpe
2013-07-27  8:53               ` Richard Cochran
2013-07-27 10:20                 ` Tomasz Figa
2013-07-27 11:36                 ` [Ksummit-2013-discuss] " Mark Brown
2013-07-27 18:07                   ` Richard Cochran
2013-07-28 12:10                     ` Mark Brown
2013-07-26  8:01           ` Richard Cochran
2013-07-26  9:42             ` [Ksummit-2013-discuss] " David Woodhouse
2013-07-26 13:09               ` Richard Cochran
2013-07-26 13:14                 ` Russell King - ARM Linux
2013-07-27 15:28                   ` David Gibson
2013-07-26 13:27                 ` Jason Cooper
2013-07-26 13:38                   ` Russell King - ARM Linux
2013-07-26 13:45                     ` Jason Cooper
2013-07-26 13:50                       ` David Woodhouse
2013-07-26 13:59                         ` Jason Cooper
2013-07-26 13:41                   ` David Woodhouse
2013-07-26 13:47                     ` Jason Cooper
2013-07-26 14:14                     ` jonsmirl
2013-07-26 14:16                       ` David Woodhouse
2013-07-26 14:21                       ` Russell King - ARM Linux
2013-07-26 14:39                         ` jonsmirl
2013-07-26 14:40                         ` Mark Brown
2013-07-29 15:32                           ` Matt Porter
2013-07-27 15:19                         ` David Gibson
2013-07-27 19:37                         ` Grant Likely
2013-07-27  9:16                       ` Ming Lei
2013-07-26 14:10                 ` Mark Brown
2013-07-26 15:49                   ` Olof Johansson
2013-07-26 16:36                     ` Rob Herring
2013-07-27  4:57                       ` Richard Cochran
2013-07-27  5:04                     ` Richard Cochran
2013-07-27  9:51                       ` Tomasz Figa
2013-07-27 10:24                         ` Arend van Spriel
2013-07-27 10:34                           ` Arend van Spriel
2013-07-27 11:09                             ` Russell King - ARM Linux
2013-07-27 10:36                           ` Tomasz Figa
2013-07-27 10:59                             ` Arend van Spriel
2013-07-27 19:45                               ` Grant Likely
2013-07-27 20:01                                 ` jonsmirl
2013-07-27 20:03                                   ` David Woodhouse
2013-07-27 20:25                                   ` Grant Likely
2013-07-28  3:28                                     ` Grant Likely
2013-07-28  5:11                                       ` James Bottomley
2013-07-28  5:13                                         ` Grant Likely
2013-07-30  1:44                                         ` David Gibson
2013-07-30  2:15                                           ` jonsmirl
2013-07-30  3:29                                             ` David Gibson
2013-07-30  4:35                                               ` Grant Likely
2013-07-30  8:39                                                 ` Maxime Ripard
2013-07-30 16:30                                             ` Stephen Warren
2013-07-30 17:27                                               ` John W. Linville
2013-07-30 16:40                                           ` Stephen Warren
2013-07-29  9:19                                   ` Arend van Spriel
2013-07-29 10:16                                     ` Arend van Spriel
2013-07-27 18:31                           ` Richard Cochran
2013-07-27 18:51                             ` Tomasz Figa
2013-07-27 19:22                               ` jonsmirl
2013-07-28  8:56                               ` Richard Cochran
2013-07-28  9:12                                 ` Tomasz Figa
2013-07-28 13:19                                   ` Richard Cochran
2013-07-28 13:39                                     ` Tomasz Figa
2013-07-28 14:09                                       ` jonsmirl
2013-07-28 15:35                                         ` Richard Cochran
2013-07-28 15:50                                           ` jonsmirl
2013-07-28 17:41                                             ` Mark Brown
2013-07-28 21:46                                           ` David Gibson
2013-07-28 15:30                                       ` Richard Cochran
2013-07-29  7:31                                     ` Maxime Ripard
2013-07-29 18:38                                       ` Richard Cochran
2013-07-29 18:51                                         ` Richard Cochran
2013-07-29 18:05                               ` Jason Gunthorpe
2013-07-29 18:27                                 ` Russell King - ARM Linux
2013-07-29 22:20                                 ` David Gibson
2013-07-29 23:14                                   ` Jason Gunthorpe
2013-07-29 23:49                                     ` David Gibson
2013-07-31 10:37                               ` Maxime Bizon
2013-07-31 10:59                                 ` Tomasz Figa
2013-07-31 15:07                                   ` Richard Cochran
2013-07-31 15:23                                     ` Tomasz Figa
2013-07-31 19:12                                       ` Richard Cochran [this message]
2013-07-31 19:29                                         ` Tomasz Figa
2013-07-31 20:00                                           ` Richard Cochran
2013-07-31 20:14                                             ` Russell King - ARM Linux
2013-07-31 20:37                                               ` jonsmirl
2013-07-31 20:48                                                 ` Russell King - ARM Linux
2013-07-31 21:26                                                   ` jonsmirl
2013-08-01  9:57                                                     ` Arend van Spriel
2013-08-01 10:09                                                       ` Mark Brown
2013-08-01 10:18                                                     ` David Woodhouse
2013-08-01 13:34                                                       ` jonsmirl
2013-08-01 13:43                                                         ` jonsmirl
2013-08-01 13:48                                                       ` Rob Herring
2013-08-02  3:50                                                     ` David Gibson
2013-08-13 23:32                                                       ` H. Peter Anvin
2013-08-14  1:49                                                         ` Guenter Roeck
2013-08-14 14:46                                                           ` H. Peter Anvin
2013-08-02  8:49                                               ` Tony Lindgren
2013-07-29 15:45                     ` Matt Porter
2013-07-31 12:58   ` Ian Campbell
2013-07-25 17:59 ` Stephen Warren
2013-07-25 19:11 ` Rob Herring
2013-07-25 19:31   ` Jason Cooper
2013-07-25 20:04     ` [Ksummit-2013-discuss] " Mark Brown
2013-07-25 20:08       ` Jason Cooper
2013-07-25 20:16     ` Rob Herring
2013-07-25 20:32       ` Jason Cooper
2013-07-25 21:53         ` [Ksummit-2013-discuss] " Ben Hutchings
2013-07-26  0:36           ` Stephen Warren
2013-07-26 12:14           ` Jason Cooper
2013-07-26  0:34       ` Stephen Warren
2013-07-26 22:11         ` Rob Herring
2013-07-25 23:18     ` Russell King - ARM Linux
2013-07-26  0:27       ` jonsmirl
2013-07-26 11:38         ` Jason Cooper
2013-07-26 14:08           ` [Ksummit-2013-discuss] " David Woodhouse
2013-07-26 13:57       ` Mark Brown
2013-07-26 10:55   ` Mark Brown
2013-07-28  4:39 ` Grant Likely

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