linux-kernel - Re: [PATCH 3/3] of: Handle memory@0 node on PPC32 only

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Message-ID: <20140423103536.GC30036@e106331-lin.cambridge.arm.com>
Date:	Wed, 23 Apr 2014 11:35:36 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Rob Herring <robherring2@...il.com>,
	Lee Jones <lee.jones@...aro.org>
Cc:	Leif Lindholm <leif.lindholm@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linaro Patches <patches@...aro.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 3/3] of: Handle memory@0 node on PPC32 only

Hi,

> > diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
> > index 889005f..230c747 100644
> > --- a/drivers/of/Kconfig
> > +++ b/drivers/of/Kconfig
> > @@ -77,4 +77,7 @@ config OF_RESERVED_MEM
> >         help
> >           Helpers to allow for reservation of memory regions
> >
> > +config OF_MEMORY_AT_0_QUIRK
> > +       def_bool n
> 
> I do not like this because it would not scale to many quirks. As I
> said,, my preference here would be to just add a WARN.

I would very much like to be able to remove the quirk entirely for arm64
if possible, which would require more than the addition of a WARN.

> The other option is get approval to break compatibility on the ST
> platform. It may not be a concern on certain platforms.

Lee, would you be able to provide an answer either way so we can get
the discussion moving?

Cheers,
Mark.
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