linux-kernel - Re: [PATCH 05/13] ARM: ux500: Apply a ste-* prefix onto snowball.dts

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Date:	Thu, 22 Aug 2013 08:18:43 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Olof Johansson <olof@...om.net>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...ricsson.com>
Subject: Re: [PATCH 05/13] ARM: ux500: Apply a ste-* prefix onto snowball.dts

On Wed, 21 Aug 2013, Olof Johansson wrote:

> On Wed, Aug 21, 2013 at 3:37 PM, Linus Walleij <linus.walleij@...aro.org> wrote:
> > On Wed, Aug 21, 2013 at 2:31 AM, Olof Johansson <olof@...om.net> wrote:
> >
> >>> diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
> >>> similarity index 100%
> >>> rename from arch/arm/boot/dts/snowball.dts
> >>> rename to arch/arm/boot/dts/ste-snowball.dts
> >>
> >> Grmbl, grmbl, grmbl. This now breaks any script that knows to use
> >> snowball.dtb. :(
> >>
> >> It's good to get the prefixes added, but it's annoying to have to deal
> >> with both during an overlap period. Maybe generate both dtb filenames
> >> for a while but rename the source?
> >
> > Hm I had the same problem but changed my Makefile
> > (scripts are too simple for me) like this:
> >
> >  dtb            := $(build_dir)/arch/arm/boot/dts/ste-hrefv60plus.dtb
> > +fallbackdtb    := $(build_dir)/arch/arm/boot/dts/hrefv60plus.dtb
> > (...)
> > -       cat $(dtb) >> $(output_dir)/zImage
> > +       if [ -f arch/arm/boot/dts/hrefv60plus.dts ] ; then \
> > +           cat $(fallbackdtb) >> $(output_dir)/zImage ; echo "fallback" ; \
> > +       else \
> > +           cat $(dtb) >> $(output_dir)/zImage ; \
> > +       fi
> 
> Sure, working around it is trivial. I just did a:
>    -@cp $</arch/arm/boot/dts/ste-snowball.dtb $</arch/arm/boot/dts/snowball.dtb
> 
> But the point is that everybody needs to do something like that now,
> which is unfortunate.

Well with only ~5 active users it's probably not that much of a big
deal anyway, but I'm still interested to know what the alternative is?

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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