linux-kernel - Re: [PATCH] arm/arm64: dts: renesas: Drop unused .dtsi

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Message-ID: <CAMuHMdUkCJ6=gchr28XYoKMLZytnGnPUdq7WPRTfMUtfLm4ROg@mail.gmail.com>
Date: Mon, 15 Dec 2025 10:09:59 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Chris Paterson <Chris.Paterson2@...esas.com>
Cc: "Rob Herring (Arm)" <robh@...nel.org>, "magnus.damm" <magnus.damm@...il.com>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>, 
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm/arm64: dts: renesas: Drop unused .dtsi

Hi Chris,

On Sun, 14 Dec 2025 at 08:04, Chris Paterson
<Chris.Paterson2@...esas.com> wrote:
> > From: Rob Herring (Arm) <robh@...nel.org>
> > These .dtsi files are not included anywhere in the tree and can't be
> > tested.
> >
> > Signed-off-by: Rob Herring (Arm) <robh@...nel.org>

> >  delete mode 100644 arch/arm64/boot/dts/renesas/r9a07g044c1.dtsi
> >  delete mode 100644 arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
> >  delete mode 100644 arch/arm64/boot/dts/renesas/r9a07g054l1.dtsi
> >  delete mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e37.dtsi
>
> The lot of the above are for SoCs that exist and there could well be users using them who haven't upstreamed a dts.
> I'd convert them to overlays but they all make use of /delete-node/ which as far as I understand isn't supported in overlays.

Converting to overlays is not suitable here, as these do represent base
SoC functionality, not an add-on.

Besides, overlays also have the "must have at least one user" rule.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds