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Re: Mega rename of device tree routines from of_*() to dt_*()

To: Stephen Neuendorffer <>
Subject: Re: Mega rename of device tree routines from of_*() to dt_*()
From: David Daney <>
Date: Wed, 24 Nov 2010 09:18:06 -0800
Cc:, LKML <>, linux-mips <>,,, linuxppc-dev list <>,
In-reply-to: <fa44e045-9600-4c46-939a-af246afab4f6@VA3EHSMHS019.ehs.local>
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On 11/24/2010 09:02 AM, Stephen Neuendorffer wrote:

-----Original Message-----
[mailto:linuxppc-dev-] On Behalf Of Michael 
Sent: Wednesday, November 24, 2010 6:04 AM
Cc: linux-mips;;; linuxppc-dev
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???)

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.

David Daney

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