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Message-ID: <3885625.kWfxlR3OJi@wuerfel>
Date: Fri, 03 Jun 2016 10:55:17 +0200
From: Arnd Bergmann <arnd@...db.de>
To: Gerd Hoffmann <kraxel@...hat.com>
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 Friday, June 3, 2016 10:45:46 AM CEST Gerd Hoffmann wrote:
> 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 think it's ok in principle, this is about the specific syntax.
> > 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.
I tried
subdir-y += ../../../arm64/boot/dts/broadcom
and it seemed to work fine, I got
DTC arch/arm/boot/dts/../../../arm64/boot/dts/broadcom/ns2-svk.dtb
in an allmodconfig build, which also includes CONFIG_ARCH_BCM_IPROC.
Arnd
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