linux-kernel - Re: [PATCH 2/3] riscv: dts: renesas: r9a07g043f/rzfive-smarc-som: Enable ADC/OPP/Thermal Zones/TSU

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Message-ID: <CAMuHMdWQ1UAYsdOKpSbi8wUWBouT1z_W7Ko1ep2mkcq7iQm8jw@mail.gmail.com>
Date:   Wed, 16 Nov 2022 10:06:43 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Prabhakar <prabhakar.csengg@...il.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Magnus Damm <magnus.damm@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
        Biju Das <biju.das.jz@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH 2/3] riscv: dts: renesas: r9a07g043f/rzfive-smarc-som:
 Enable ADC/OPP/Thermal Zones/TSU

Hi Prabhakar,

On Wed, Nov 16, 2022 at 10:03 AM Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> On Tue, Nov 15, 2022 at 11:51 AM Prabhakar <prabhakar.csengg@...il.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Enable support for below blocks found on RZ/Five SMARC EVK SoC/SoM:
> > - ADC
> > - OPP
> > - Thermal Zones
> > - TSU
> >
> > Note, these blocks are enabled in RZ/G2UL SMARC SoM DTSI [0] hence
> > deleting these disabled nodes from RZ/Five SMARC SoM DTSI enables them
> > here too as we include [0] in RZ/Five SMARC SoM DTSI.
> >
> > [0] arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> Thanks for your patch!
>
> > --- a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
> > +++ b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
> > @@ -16,13 +16,6 @@ aliases {
> >         chosen {
> >                 bootargs = "ignore_loglevel";
> >         };
> > -
> > -       /delete-node/opp-table-0;
> > -       /delete-node/thermal-zones;
> > -};
> > -
> > -&adc {
> > -       status = "disabled";
>
> I believe this is not sufficient to enable the ADC, as it is disabled
> by default?
> So this needs to set the status to "okay" and configure pin
> control, depending on SW_SW0_DEV_SEL, just like in
> arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi?

Sorry, scrap that. grabbing my morning coffee *now*.

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

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