linux-kernel - Re: [PATCH v2 7/9] ARM: bcm2835: Add devicetree for the Raspberry Pi 3.

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Date:	Fri, 03 Jun 2016 10:45:46 +0200
From:	Gerd Hoffmann <kraxel@...hat.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-rpi-kernel@...ts.infradead.org,
	Mark Rutland <mark.rutland@....com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@...r.kernel.org>,
	Florian Fainelli <f.fainelli@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Scott Branden <sbranden@...adcom.com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Ray Jui <rjui@...adcom.com>, Will Deacon <will.deacon@....com>,
	Russell King <linux@...linux.org.uk>,
	open list <linux-kernel@...r.kernel.org>,
	Eric Anholt <eric@...olt.net>,
	Rob Herring <robh+dt@...nel.org>,
	"open list:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..." 
	<bcm-kernel-feedback-list@...adcom.com>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v2 7/9] ARM: bcm2835: Add devicetree for the Raspberry
 Pi 3.

On Fr, 2016-06-03 at 09:38 +0200, Arnd Bergmann wrote:
> On Friday, June 3, 2016 8:18:26 AM CEST Gerd Hoffmann wrote:
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 06b6c2d..71e2d36 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -66,7 +66,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
> >         bcm2835-rpi-b-rev2.dtb \
> >         bcm2835-rpi-b-plus.dtb \
> >         bcm2835-rpi-a-plus.dtb \
> > -       bcm2836-rpi-2-b.dtb
> > +       bcm2836-rpi-2-b.dtb \
> > +       ../../../arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dtb
> >  dtb-$(CONFIG_ARCH_BCM_5301X) += \
> >         bcm4708-asus-rt-ac56u.dtb \
> >         bcm4708-asus-rt-ac68u.dtb \
> 
> Let's make this hunk a separate patch so we can discuss it on its
> own.

Hmm, I through we where in agreement to do it this way ...

> I'm not really happy about the way it looks (in general, using ../../../
> anywhere in the kernel looks hacky.
> 
> How about a separate
> 
> dtb-$(CONFIG_ARCH_BCM2835) +=
> 	../../../arm64/boot/dts/broadcom/

Not working.

Tried "subdir-$(CONFIG_ARCH_BCM) += ...".  Didn't work either.
Same for "dts-dirs += ...".

Running out of ideas.  Guess I have to leave this to someone who knows
kbuild better than me.

cheers,
  Gerd