[PATCH 2/2] Allow nodes at the root to be specified by path as well as by label.

John Bonesio bones at secretlab.ca
Wed Oct 20 03:05:55 EST 2010


On Tue, 2010-10-19 at 13:14 +1100, David Gibson wrote:
> On Mon, Oct 18, 2010 at 01:25:50PM -0700, John Bonesio wrote:
> > Changes to allow us to specify a node by it's path. A path can be used in
> > place of a label.
> > 
> > This is particularly useful when overriding existing nodes.
> > This way we don't have to label every possible node in a device tree we know
> > is a base device tree for a class of systems, and we know the tree will be
> > modified for the specific systems.
> 
> Nack.  This patch is pointless, the DT_REF lexing will already resolve
> paths in the form &{/some/path} and I see no reason that won't work
> for tree merging as well.  Oh, and bare &/path/to/node is a bad idea
> anyway, more about that later.
> 

I believe a patch is still necessary. I just tried dtc from git without
changes. I didn't work.

It also looks to me like get_node_by_label() will not resolve nodes that
are specified by path.

Perhaps I'm just doing something wrong.

- John




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