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From: Segher Boessenkool <segher-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
To: Mark Brown <broonie-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: Re: [PATCH] of: support an enumerated-bus compatible value
Date: Tue, 3 Jul 2012 17:43:05 +0200	[thread overview]
Message-ID: <DF4AD962-D8A8-43AA-AF14-5DBF65505EDF@kernel.crashing.org> (raw)
In-Reply-To: <20120703144242.GE25995-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>

>> There is still no reason for the fake bus node to have a "compatible"
>> property though.  What could it possibly mean?  "This bus does not
>> exist at all but you access it in bla bla bla way"?  That just  
>> doesn't
>> make sense.  It doesn't exist, you do not access it, it has no
>> programming model, it has no "compatible" property.
>
> Well, as everyone keeps saying this seems to be a limitation of the
> current device tree rather than something that's actually sensible in
> and of itself.

But that is my point: it is *not* a limitation of the device tree,
the device tree can describe the hardware just fine without doing
some weird "compatible" property.  The limitation is in the current
Linux kernel code; _it_ should be fixed, don't add decorations to
the device tree to work around shortcomings in a single OS.  The
device tree describes the structure of the hardware, not the structure
of the device model in the OS.


Segher

  parent reply	other threads:[~2012-07-03 15:43 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-28 23:05 [PATCH] of: support an enumerated-bus compatible value Stephen Warren
     [not found] ` <1340924755-31447-1-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-01 19:36   ` Rob Herring
     [not found]     ` <4FF0A6B6.8040902-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-07-01 22:03       ` Grant Likely
2012-07-02 15:59       ` Stephen Warren
     [not found]         ` <4FF1C567.4060809-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-02 17:23           ` Mitch Bradley
     [not found]             ` <4FF1D8F9.9040005-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2012-07-02 17:43               ` Stephen Warren
     [not found]                 ` <4FF1DDBD.9050106-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-02 18:36                   ` Mitch Bradley
     [not found]                     ` <4FF1EA1A.9030307-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2012-07-02 19:41                       ` Stephen Warren
     [not found]                         ` <4FF1F955.6030204-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-02 21:44                           ` Segher Boessenkool
     [not found]                             ` <6BC22F77-77D7-45DF-821A-6CA2DBADEA59-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2012-07-02 22:26                               ` Stephen Warren
     [not found]                                 ` <4FF22031.3060206-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-03  0:27                                   ` Segher Boessenkool
     [not found]                                     ` <FE3C6687-727E-4191-9D37-9E71EBFEF0AE-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2012-07-03 10:47                                       ` Mark Brown
     [not found]                                         ` <20120703104720.GB25995-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2012-07-03 14:00                                           ` Segher Boessenkool
     [not found]                                             ` <F928AF0B-65CF-48D1-8DB5-4C27FD6AB82F-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2012-07-03 14:42                                               ` Mark Brown
     [not found]                                                 ` <20120703144242.GE25995-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2012-07-03 15:43                                                   ` Segher Boessenkool [this message]
     [not found]                                                     ` <DF4AD962-D8A8-43AA-AF14-5DBF65505EDF-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2012-07-03 15:45                                                       ` Stephen Warren
     [not found]                                                         ` <4FF3138F.9090800-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-03 19:02                                                           ` Mitch Bradley
     [not found]                                                             ` <4FF341B0.9090901-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2012-07-03 19:57                                                               ` Stephen Warren
     [not found]                                                                 ` <4FF34EC2.6040908-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-24 17:38                                                                   ` Stephen Warren
     [not found]                                                                     ` <500EDD8A.2010701-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-24 18:48                                                                       ` Arnd Bergmann
     [not found]                                                                         ` <201207241848.53308.arnd-r2nGTMty4D4@public.gmane.org>
2012-07-24 19:30                                                                           ` Stephen Warren
     [not found]                                                                             ` <500EF7C5.6060406-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-24 20:05                                                                               ` Arnd Bergmann
2012-07-03 15:43                                               ` Stephen Warren
2012-07-02 21:45                           ` Grant Likely
2012-07-02 21:43           ` Grant Likely
     [not found]             ` <CACxGe6ty5wU6Y+fuFYfBsM4HRLZaTff9EnzCP2FzmcQGOyJ=xQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-02 22:28               ` Stephen Warren
     [not found]                 ` <4FF22095.4030106-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-07-02 22:37                   ` Grant Likely
     [not found]                     ` <CACxGe6sexKHa65=EsLpTa9-JrSK-Ubbhz6MAmfGeSen9cHJhow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-02 23:17                       ` Stephen Warren

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