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Subject: Re: [PATCH v4 19/21] drivers/of: Support adding sub-tree
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Pantelis Antoniou <panto@antoniou-consulting.com>, Rob Herring
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Date: Thu, 14 May 2015 09:35:24 +1000
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Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
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On Tue, 2015-05-05 at 07:14 +1000, Benjamin Herrenschmidt wrote:
> So the "trivial" way to do it (and the way we have implemented the FW
> side so far) is to have the FW simply "flatten" the subtree below the
> slot and pass it to Linux, with the intent of expanding it back below
> the slot node.
> 
> This is what Gavin proposed patches do.
> 
> The overlay mechanism adds all sorts of features that we don't seen to
> need and would make the above more complex.

Guys, I never got a final answer from you on this. Are we ok with adding
the way to just expand a subtree or are you insistent we need to use the
overlap mechanism ?

Cheers,
Ben.