Re: [PATCH v6 2/2] of: Make of_find_node_by_path() traverse /aliasesfor relative paths.

From: David Daney
Date: Fri Mar 09 2012 - 12:59:02 EST


On 03/08/2012 05:33 PM, Grant Likely wrote:
On Wed, 29 Feb 2012 11:21:04 -0800, David Daney<ddaney.cavm@xxxxxxxxx> wrote:
From: David Daney<david.daney@xxxxxxxxxx>

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@xxxxxxxxxx>
[...]

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.

Thanks,
David Daney
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