linux-kernel - Re: [PATCH v3 8/9] arm64: dts: renesas: r9a09g077: add TSU and thermal zones support

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Message-ID: <CAMuHMdX9zNBNtUNwLN4SgDbMpvyMOBYVhVwufgB4zC+F+OCgVw@mail.gmail.com>
Date: Thu, 8 Jan 2026 16:43:43 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
Cc: John Madieu <john.madieu.xa@...renesas.com>, "Rafael J . Wysocki" <rafael@...nel.org>, 
	Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
	Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, 
	Philipp Zabel <p.zabel@...gutronix.de>, linux-pm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v3 8/9] arm64: dts: renesas: r9a09g077: add TSU and
 thermal zones support

On Wed, 26 Nov 2025 at 14:05, Cosmin Tanislav
<cosmin-gabriel.tanislav.xa@...esas.com> wrote:
> The Renesas RZ/T2H (R9A09G077) SoC includes a Temperature Sensor Unit
> (TSU). The device provides real-time temperature measurements for
> thermal management, utilizing a single dedicated channel for temperature
> sensing.
>
> The TSU loads calibration data via SMC SIP.
>
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
i.e. will queue in renesas-devel for v6.20.

> --- a/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r9a09g077.dtsi

> @@ -952,6 +967,37 @@ sdhi1_vqmmc: vqmmc-regulator {
>                 };
>         };
>
> +       thermal-zones {

I will move this after stmmac-axi-config while applying, to preserve
sort order (alphabetical).

> +               cpu-thermal {

[...]

> +       };
> +
>         stmmac_axi_setup: stmmac-axi-config {
>                 snps,lpi_en;
>                 snps,wr_osr_lmt = <0xf>;

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