linux-kernel - Re: [PATCH 15/16] arm64: dts: renesas: Add initial DTSI for RZ/G2{L,LC} SoC's

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Date:   Thu, 27 May 2021 12:51:46 +0100
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Rob Herring <robh+dt@...nel.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [PATCH 15/16] arm64: dts: renesas: Add initial DTSI for
 RZ/G2{L,LC} SoC's

Hi Geert,

On Thu, May 27, 2021 at 12:17 PM Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Fri, May 14, 2021 at 9:24 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> > Add initial DTSI for RZ/G2{L,LC} SoC's.
> >
> > File structure:
> > r9a07g044.dtsi  => RZ/G2L family SoC common parts
> > r9a07g044l.dtsi => Specific to RZ/G2L (R9A07G044L) SoC
> > r9a07g044l1.dtsi => Specific to RZ/G2L (R9A07G044L single cortex A55) SoC
> > r9a07g044l2.dtsi => Specific to RZ/G2L (R9A07G044L dual cortex A55) SoC
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
>
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
> > @@ -0,0 +1,70 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Device Tree Source for the RZ/G2L and RZ/G2LC common SoC parts
> > + *
> > + * Copyright (C) 2021 Renesas Electronics Corp.
> > + */
> > +
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +#include <dt-bindings/clock/r9a07g044l-cpg.h>
> > +
> > +/ {
> > +       compatible = "renesas,r9a07g044";
>
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
> > @@ -0,0 +1,43 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Device Tree Source for the RZ/G2L R9A07G044L1 common parts
> > + *
> > + * Copyright (C) 2021 Renesas Electronics Corp.
> > + */
> > +
> > +/dts-v1/;
> > +#include "r9a07g044l.dtsi"
> > +
> > +/ {
> > +       compatible = "renesas,r9a07g044l1";
>
> This overwrites the main compatible value set by r9a07g044.dtsi before.
> As per your bindings, you want both:
>
>     compatible = "renesas,r9a07g044l1", "renesas,r9a07g044".
>
Agreed will fix that in next respin.

Cheers,
Prabhakar