On Mon, Jun 20, 2016 at 10:45:55AM -0600, Stephen Warren wrote:

On 06/20/2016 10:40 AM, Thierry Reding wrote:

quoted

On Mon, Jun 20, 2016 at 09:50:26AM -0600, Stephen Warren wrote:

quoted

On 06/18/2016 07:04 PM, Marcel Ziswiler wrote:

quoted

Remove commas from unit addresses as suggested by Rob Herring upon me
posting initial Apalis TK1 support:

http://article.gmane.org/gmane.linux.ports.tegra/26608

Acked-by: Stephen Warren <redacted>

I'm confused now. I posted almost exactly the same patch a while ago and
we agreed that we couldn't do this because the node names were to be
considered part of the ABI.

Is it or is it not?

The particular case where it matters is the GPU node, which U-Boot
manipulates. This revised patch version no longer renames the GPU node and
so in practice avoids any issues that I'm aware of.

If there's a more general rule that node names are part of the ABI, then
indeed we shouldn't take this patch.

I'm somewhat uncomfortable with this notion. Just because we don't know
of any other cases doesn't mean there aren't any. My understanding is
that it's fairly common to look up device tree nodes by name, however
brittle that may be.

There's also the matter of consistency to consider here. I suspect that
if we make this change somebody will notice the odd one out and send
patches to "fix it up". So if we get confirmation about this change
being okay, I'd request that a comment be added to the GPU node as to
why it is not converted.

Thierry
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