linux-kernel - Re: [PATCH v4 1/9] drivers/of: Introduce of_node

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Message-ID: <20150929090128.4647f27a@arm.com>
Date:	Tue, 29 Sep 2015 09:01:28 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	Frank Rowand <frowand.list@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Jason Cooper <jason@...edaemon.net>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mark Rutland <mark.rutland@....com>,
	"Rob Herring" <robh+dt@...nel.org>, <linux-acpi@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Tomasz Nowicki <tomasz.nowicki@...aro.org>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>,
	Graeme Gregory <graeme@...a.org.uk>,
	"Jake Oshins" <jakeo@...rosoft.com>
Subject: Re: [PATCH v4 1/9] drivers/of: Introduce of_node_alloc

On Mon, 28 Sep 2015 15:50:38 -0700
Frank Rowand <frowand.list@...il.com> wrote:

> On 9/28/2015 9:42 AM, Marc Zyngier wrote:
> > We want to be able to generate "fake" device nodes that can be
> > used as an identifier for irq domains. For that, we reuse the
> > dynamic DT layer in order to generate DT nodes in a detached state
> > (so that it doesn't interfere with the rest of the tree).
> > 
> > Signed-off-by: Marc Zyngier <marc.zyngier@....com>
> > ---
> >  drivers/of/dynamic.c | 22 ++++++++++++++++++++++
> >  include/linux/of.h   |  5 +++++
> >  2 files changed, 27 insertions(+)
> > 
> > diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
> > index 53826b8..709d363 100644
> > --- a/drivers/of/dynamic.c
> > +++ b/drivers/of/dynamic.c
> > @@ -445,6 +445,28 @@ struct device_node *__of_node_dup(const struct device_node *np, const char *fmt,
> >  	return NULL;
> >  }
> >  
> > +/**
> > + * of_node_alloc() - Allocate an empty device node dynamically.
> > + * @fmt: Format string (plus vargs) for new full name of the device node
> > + *
> > + * Create an device tree node, either by by allocating an empty one
> 
>       Create a device tree node by allocating an empty one

Ah! Thanks!

	M.
-- 
Jazz is not dead. It just smells funny.
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