linux-kernel - Re: [PATCH v2 4/4] arm64: dts: renesas: r9a09g087: add ICU support

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Message-ID: <CAMuHMdUm-31eJyA38pN0Ou=_HwSPaRHntEOi7FSCVPDd8zSmxA@mail.gmail.com>
Date: Mon, 22 Dec 2025 14:16:02 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2 4/4] arm64: dts: renesas: r9a09g087: add ICU support

Hi Cosmin,

On Mon, 1 Dec 2025 at 12:30, Cosmin Tanislav
<cosmin-gabriel.tanislav.xa@...esas.com> wrote:
> The Renesas RZ/N2H (R9A09G087) SoC has an Interrupt Controller (ICU)
> block that routes external interrupts to the GIC's SPIs, with the
> ability of level-translation, and can also produce software
> and aggregate error interrupts.
>
> Add support for it.
>
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
> @@ -865,6 +865,79 @@ cpg: clock-controller@...80000 {
>                         #power-domain-cells = <0>;
>                 };
>
> +               icu: interrupt-controller@...a0000 {
> +                       compatible = "renesas,r9a09g087-icu", "renesas,r9a09g077-icu";
> +                       reg = <0 0x802a0000 0 0x10000>,
> +                             <0 0x812a0000 0 0x50>;

"<0 0x812a0000 0 0x10000>", as per Figure 5.1 ("Unified memory map").

The rest is OK, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
i.e. will queue in renesas-devel for v6.20, with the above fixed.

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