linux-kernel - Re: Mega rename of device tree routines from of_*() to dt

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Date:	Wed, 24 Nov 2010 11:02:41 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	David Daney <ddaney@...iumnetworks.com>
Cc:	Stephen Neuendorffer <stephen.neuendorffer@...inx.com>,
	michael@...erman.id.au, LKML <linux-kernel@...r.kernel.org>,
	linux-mips <linux-mips@...ux-mips.org>,
	microblaze-uclinux@...e.uq.edu.au,
	devicetree-discuss@...ts.ozlabs.org,
	linuxppc-dev list <linuxppc-dev@...abs.org>,
	sparclinux@...r.kernel.org
Subject: Re: Mega rename of device tree routines from of_*() to dt_*()

On Wed, Nov 24, 2010 at 10:18 AM, David Daney <ddaney@...iumnetworks.com> wrote:
> On 11/24/2010 09:02 AM, Stephen Neuendorffer wrote:
>>
>>
>>> -----Original Message-----
>>> From: linuxppc-dev-bounces+stephen=neuendorffer.name@...ts.ozlabs.org
>>> [mailto:linuxppc-dev-
>>> bounces+stephen=neuendorffer.name@...ts.ozlabs.org] On Behalf Of Michael
>>> Ellerman
>>> Sent: Wednesday, November 24, 2010 6:04 AM
>>> To: LKML
>>> Cc: linux-mips; microblaze-uclinux@...e.uq.edu.au;
>>> devicetree-discuss@...ts.ozlabs.org; linuxppc-dev
>>> list; sparclinux@...r.kernel.org
>>> Subject: RFC: Mega rename of device tree routines from of_*() to dt_*()
>>>
>>> Hi all,
>>>
>>> There were some murmurings on IRC last week about renaming the of_*()
>>> routines. I was procrastinating at the time and said I'd have a look at
>>> it, so here I am.
>>>
>>> The thinking is that on many platforms that use the of_() routines
>>> OpenFirmware is not involved at all, this is true even on many powerpc
>>> platforms. Also for folks who don't know the OpenFirmware connection it
>>> reads as "of", as in "a can of worms".
>>>
>>> Personally I'm a bit ambivalent about it, the OF name is a bit wrong so
>>> it would be nice to get rid of, but it's a lot of churn.
>>>
>>> So I'm hoping people with either say "YES this is a great idea", or "NO
>>> this is stupid".
>>
>> Personally, I think it's a great idea, if only because I stared long and
>> hard
>> at the code once upon a time trying to figure out what is really
>> OF-related
>> and what isn't.  It's somewhat clearer now that drivers/of has been
>> factored
>> out (although, shouldn't it be drivers/dt???)

Yes, the directory name should change, as should the CONFIG_OF* defines.

>>
>> That said, it *is* alot of code churn.  If it's going to be done, I think
>> it should be
>> done in concert with fixing a bunch of the function names which don't
>> really follow any
>> sane naming convention, so that the backporting discontinuity only happens
>> once.
>>
>
> Oh, you mean things like:
>
> of_{,un}register_platform_driver vs. platform_driver_{,un}register
>
> That one is particularly annoying to me.

Ignore that one.  of_{,un}platform_driver is deprecated and users will
all be converted to platform_drivers.

g.
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