On Mon, Apr 15, 2013 at 2:38 PM, Andreas Larson <[email protected]> wrote: > On 2013-04-10 20:50, Linus Walleij wrote:
>>> +Required properties: >>> + >>> +- name : Should be "GAISLER_GPIO" or "01_01a" >> >> What is this? Don't we usually use a .compatible string for this? >> Name? Que? Is that something legacy? > > Regarding using name, this is standard for SPARC. The names in the > device tree originates from the PROM. > > The name field is the actually the first field checked for a match in > of_match_node, followed by type then compatible. See > http://lxr.free-electrons.com/source/drivers/of/base.c#L572 > (...) > As for the "01_01a", the LEON SPARC systems uses a plug&play to identify > different IP cores in the system. When the PROM is unaware of the name > of a certain core, the name field presented from the prom will be on > this form. This is standard handling for LEON SPARC drivers. Thanks for detailing this! There is such a big world out there sometimes. I'm sort of wondering why we do things the way we do in the ARM DT world sometimes. Specifically I suspect that we should be using name or type rather than compatible for the ARM PrimeCells, which are a sort of plug-n-play type devices, but I guess it's too late to change that now... Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
