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From: Mitch Bradley <wmb-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
To: Benjamin Herrenschmidt
	<benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: linuxppc-dev list
	<linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org>,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: Re: [RFC] Clock binding
Date: Thu, 27 Aug 2009 12:28:17 -1000	[thread overview]
Message-ID: <4A970881.5090603@firmworks.com> (raw)
In-Reply-To: <1251411532.20467.74.camel@pasglop>

>
>
>> > Open Firmware often avoids indexed structures.  Cases in point include 
>> > the use of named properties instead of fixed structures and named 
>> > methods instead of function pointer arrays.  Open Firmware's use of 
>> > arrays for reg properties seems like the right choice for that 
>> > particular case, but shouldn't be construed to suggest that arrays are 
>> > good for everything.
>>     
>
> Well, the "reg" property is fine for the common cases of devices with
> one IO (or MMIO) range, no confusion possible, or PCI since it encodes
> the BAR number. For other cases, especially random embedded stuff that
> maps several regions of memory, it's a bit harder since we go back to
> the need of having "somebody" define which region is which.
>
>
>   

Indeed.  You choose based on the common case and eventually there will 
be some case that stretches the boundaries.

I suppose that, if the problem became severe enough, one could invent a 
new "reg-names" property, a list of strings naming the reg entries.

  reply	other threads:[~2009-08-27 22:28 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-18  4:21 [RFC] Clock binding Benjamin Herrenschmidt
2009-08-18  7:45 ` [RFC/PATCH] Clock binding prototype implementation Benjamin Herrenschmidt
2009-08-27  4:09 ` [RFC] Clock binding Benjamin Herrenschmidt
2009-08-27  5:20   ` Grant Likely
2009-08-27 21:11   ` Mitch Bradley
     [not found]     ` <4A96F69A.5050003-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2009-08-27 22:18       ` Benjamin Herrenschmidt
2009-08-27 22:28         ` Mitch Bradley [this message]
2009-08-27 22:45         ` Mitch Bradley
     [not found]           ` <4A970C85.8090703-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2009-08-28  0:51             ` Benjamin Herrenschmidt
2009-08-28  2:36               ` Mitch Bradley
     [not found]                 ` <4A974295.9020504-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2009-08-28  2:43                   ` Benjamin Herrenschmidt
2009-08-28  2:53                     ` Michael Ellerman
2009-08-28 10:58                     ` Josh Boyer
     [not found]                       ` <20090828105837.GC25303-jnIq6iUNB1CO8iYQgJmm/0EOCMrvLtNR@public.gmane.org>
2009-08-28 11:23                         ` David Gibson
     [not found]                           ` <20090828112322.GA16192-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-08-28 22:28                             ` Benjamin Herrenschmidt
2009-08-28 12:16                     ` Stuart Yoder
2009-08-28 16:06                       ` Grant Likely
     [not found]                         ` <fa686aa40908280906w7953017ek44ee498d57e0a642-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-08-28 18:05                           ` Stuart Yoder
2009-08-28 18:23                             ` M. Warner Losh
     [not found]                             ` <955e48b80908281105q60c057e8pfc16213f17da9138-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-08-28 20:09                               ` Grant Likely
2009-08-31 17:49                                 ` Stuart Yoder
2009-08-28 18:12                           ` Mitch Bradley
2009-08-28 18:24                         ` Rafal Jaworowski
     [not found]                           ` <B7829AEE-B751-403D-9A16-CFE1A4E0FAB0-nYOzD4b6Jr9Wk0Htik3J/w@public.gmane.org>
2009-08-28 22:33                             ` Benjamin Herrenschmidt
2009-08-28 16:37 ` Grant Likely

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