linux-kernel - Re: [PATCH] dt-bindings: thermal: rcar-gen3-thermal: Add r8a779f0 support

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Message-ID: <CAMuHMdX2qAMaejyEFCSNA1aZrMYQgQuf6mp0o_smKmdXUPkzwA@mail.gmail.com>
Date:   Thu, 9 Jun 2022 11:09:27 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: thermal: rcar-gen3-thermal: Add r8a779f0 support

Hi Wolfram,

On Wed, May 25, 2022 at 5:42 PM Wolfram Sang
<wsa+renesas@...g-engineering.com> wrote:
> Add support for R-Car S4. The S4 IP differs a bit from its siblings in
> such way that it has 3 out of 4 TSC nodes for Linux and the interrupts
> are not routed to the INTC-AP but to the ECM.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
> +++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
> @@ -8,9 +8,10 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
>  title: Renesas R-Car Gen3 Thermal Sensor
>
>  description:
> -  On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
> -  sensors (THS) which are the analog circuits for measuring temperature (Tj)
> -  inside the LSI.
> +
> +  On most R-Car Gen3 and later SoCs, the thermal sensor controllers (TSC)
> +  control the thermal sensors (THS) which are the analog circuits for
> +  measuring temperature (Tj) inside the LSI.
>
>  maintainers:
>    - Niklas Söderlund <niklas.soderlund@...natech.se>
> @@ -27,6 +28,7 @@ properties:
>        - renesas,r8a77965-thermal # R-Car M3-N
>        - renesas,r8a77980-thermal # R-Car V3H
>        - renesas,r8a779a0-thermal # R-Car V3U
> +      - renesas,r8a779f0-thermal # R-Car S4
>
>    reg: true

As the interrupt is routed to the ECM, like on R-Car V3U, the interrupts
property should not be required.  Else "make dtbs_check" complains:

    arch/arm64/boot/dts/renesas/r8a779f0-spider.dtb: thermal@...98000:
'interrupts' is a required property

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