linux-kernel - Re: [PATCH v6 2/2] of: Make of_find_node_by_path() traverse /aliases for relative paths.

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Message-ID: <CACxGe6v3wnRdyaWeuBZ1RMQf8KD3dV2btQKrrmPAUgQtym_e_g@mail.gmail.com>
Date:	Fri, 9 Mar 2012 11:00:44 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	David Daney <david.daney@...ium.com>
Cc:	David Daney <ddaney.cavm@...il.com>,
	"linux-mips@...ux-mips.org" <linux-mips@...ux-mips.org>,
	"ralf@...ux-mips.org" <ralf@...ux-mips.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	Rob Herring <rob.herring@...xeda.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 2/2] of: Make of_find_node_by_path() traverse /aliases
 for relative paths.

On Fri, Mar 9, 2012 at 10:59 AM, David Daney <david.daney@...ium.com> wrote:
> On 03/08/2012 05:33 PM, Grant Likely wrote:
>>
>> On Wed, 29 Feb 2012 11:21:04 -0800, David Daney<ddaney.cavm@...il.com>
>>  wrote:
>>>
>>> From: David Daney<david.daney@...ium.com>
>>>
>>> Currently all paths passed to of_find_node_by_path() must begin with a
>>> '/', indicating a full path to the desired node.
>>>
>>> Augment the look-up code so that if a path does *not* begin with '/',
>>> the path is used as the name of an /aliases property.  The value of
>>> this alias is then used as the full node path to be found.
>>>
>>> Signed-off-by: David Daney<david.daney@...ium.com>
>
> [...]
>
>>
>> All the aliases are already decoded at boot time now.  See
>> of_alias_scan().  Instead of open-coding this, you can add an
>> of_alias_lookup() function something like this (untested):
>>
>
> After objections from davem, and a bit of thought, I already indicated on a
> different branch of this thread that we should drop this patch.
>
> I have improved my code so that it is no longer needed.

Okay.
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