DT case sensitivity

[Rob Herring]

On Wed, Aug 22, 2018 at 8:14 PM Benjamin Herrenschmidt
<benh at kernel.crashing.org> wrote:
>
> On Wed, 2018-08-22 at 19:47 -0500, Rob Herring wrote:
> > The default DT string handling in the kernel is node names and
> > compatibles are case insensitive and property names are case sensitive
> > (Sparc is the the only variation and is opposite). It seems only PPC
> > (and perhaps only Power Macs?) needs to support case insensitive
> > comparisons. It was probably a mistake to follow PPC for new arches
> > and we should have made everything case sensitive from the start. So I
> > have a few questions for the DT historians. :)
>
> Open Firmware itself is insensitive.

Doesn't it depend on the implementation? Otherwise, how is Sparc different?

> > What PPC systems are case insensitive? Can we limit that to certain systems?
>
> All PowerMacs at least, the problem is that I don't have DT images or
> access to all the historical systems (and yes some people occasionally
> still use them) to properly test a change in that area.

I'm temped to break them so I can find folks to provide me with DT dumps. :)

Rob