Re: [PATCH 5/5] lib/vsprintf: Add %pfw conversion specifier for printing fwnode names

Petr Mladek
2019-03-26T15:50:20Z

On Tue 2019-03-26 16:30:21, Andy Shevchenko wrote:
> On Tue, Mar 26, 2019 at 04:12:43PM +0200, Sakari Ailus wrote:
> > On Tue, Mar 26, 2019 at 04:06:33PM +0200, Heikki Krogerus wrote:
> > > On Tue, Mar 26, 2019 at 03:13:53PM +0200, Andy Shevchenko wrote:
>
> > > > > > Do we support swnode here?
> > > > >
> > > > > Good question. The swnodes have no hierarchy at the moment (they're only
> > > > > created for a struct device as a parent) and they do not have human-readable
> > > > > names. So I'd say it's not relevant right now. Should these two change,
> > > > > support for swnode could (and should) be added later on.
> > > >
> > > > Heikki, what do you think about this?
> > >
> > > Well, the swnodes do have hierarchy. That was kind of the whole point
> > > of introducing them. They now can also be named using "name" property.
> > > See commit 344798206f171c5abea7ab1f9762fa526d7f539d.
> >
> > Right; I saw the function after initially replying to Andy but I missed
> > where the node name came from. :-) Now I know...
> >
> > I can add support for swnode, too, if you like.
>
> Definitely!

It might really make sense to obsolete %pOF and handle all three
(OF, ACPI, Software) nodes using the same %pfw modifiers.

If I get it correctly, we could distinguish them by
fwnode->ops, see is_of_node(), is_acpi_static_node(),
is_software_node().

Best Regards,
Petr