On Tue, Oct 15, 2024 at 4:01 PM Chris Packham
<Chris.Packham@xxxxxxxxxxxxxxxxxxx> wrote:
>
>
> On 16/10/24 09:16, Chris Packham wrote:
> > (resend without HTML part)
> >
> > Hi,
> >
> > I just noticed with the latest 6.12-rc I'm no longer able to build an
> > out of tree dtb by just copying it into arch/$ARCH/boot/dts (at least
> > for ARCH=mips and ARCH=arm64) and running `make my-board.dtb`. I
> > believe buildroot relies on this as well[1].
>
> A simple repro is
>
> make ARCH=arm mvebu_v7_defconfig
> cp arch/arm/boot/dts/marvell/armada-385-db-ap.dts
> arch/arm/boot/dts/myboard.dts
> make ARCH=arm myboard.dtb
>
> >
> > Is this an intentional change? Is it too late to undo it (or provide
> > an alternative way of having out of tree dts that make use of in-tree
> > dtsi).
> Looks like this is caused by commit e7e2941300d2 ("kbuild: split device
> tree build rules into scripts/Makefile.dtbs"). The conditional include
> of Makefile.dtbs isn't satisfied when building an out of tree dtb.
News to me that used to work. That's not supported behavior. Only
targets listed in 'dtbs-' are supported.
Rob
