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

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Message-ID: <20190326141243.g2x44v65npw4yhw5@paasikivi.fi.intel.com>
Date:   Tue, 26 Mar 2019 16:12:43 +0200
From:   Sakari Ailus <sakari.ailus@...ux.intel.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Petr Mladek <pmladek@...e.com>, linux-kernel@...r.kernel.org,
        rafael@...nel.org, linux-acpi@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 5/5] lib/vsprintf: Add %pfw conversion specifier for
 printing fwnode names

Moi,

On Tue, Mar 26, 2019 at 04:06:33PM +0200, Heikki Krogerus wrote:
> Hi,
> 
> On Tue, Mar 26, 2019 at 03:13:53PM +0200, Andy Shevchenko wrote:
> > > > > On ACPI based systems the resulting strings look like
> > > > > 
> > > > > 	\_SB.PCI0.CIO2.port@...ndpoint@0
> > > > > 
> > > > > where the nodes are separated by a dot (".") and the first three are
> > > > > ACPI device nodes and the latter two ACPI data nodes.
> > > > 
> > > > 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.

-- 
Terveisin,

Sakari Ailus
sakari.ailus@...ux.intel.com