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Date:   Mon, 18 May 2020 17:45:40 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     "Lad, Prabhakar" <prabhakar.csengg@...il.com>
Cc:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Jens Axboe <axboe@...nel.dk>, Rob Herring <robh+dt@...nel.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "David S. Miller" <davem@...emloft.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>, linux-ide@...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>,
        Linux I2C <linux-i2c@...r.kernel.org>,
        Linux MMC List <linux-mmc@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Watchdog Mailing List <linux-watchdog@...r.kernel.org>
Subject: Re: [PATCH 17/17] ARM: dts: r8a7742: Add RWDT node

On Mon, May 18, 2020 at 3:23 PM Lad, Prabhakar
<prabhakar.csengg@...il.com> wrote:
> On Mon, May 18, 2020 at 2:17 PM Sergei Shtylyov
> <sergei.shtylyov@...entembedded.com> wrote:
> > On 18.05.2020 15:27, Lad, Prabhakar wrote:
> > >>> Add a device node for the Watchdog Timer (RWDT) controller on the Renesas
> > >>> RZ/G1H (r8a7742) SoC.
> > >>>
> > >>> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > >>> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@...renesas.com>
> > >>
> > >> Thanks for your patch!
> > >>
> > >>> --- a/arch/arm/boot/dts/r8a7742.dtsi
> > >>> +++ b/arch/arm/boot/dts/r8a7742.dtsi
> > >>> @@ -201,6 +201,16 @@
> > >>>                  #size-cells = <2>;
> > >>>                  ranges;
> > >>>
> > >>> +               rwdt: watchdog@...20000 {
> > >>> +                       compatible = "renesas,r8a7742-wdt",
> > >>> +                                    "renesas,rcar-gen2-wdt";
> > >>> +                       reg = <0 0xe6020000 0 0x0c>;
> > >>> +                       clocks = <&cpg CPG_MOD 402>;
> > >>> +                       power-domains = <&sysc R8A7742_PD_ALWAYS_ON>;
> > >>> +                       resets = <&cpg 402>;
> > >>> +                       status = "disabled";
> > >>
> > >> Missing "interrupts" property.
> > >>
> > > "interrupts" property isn't used by rwdt driver  and can be dropped
> > > from bindings file.
> >
> >     DT describes the hardware, not its driver's abilities.

Thanks for chiming in, Sergei!

> Agreed will add, I had followed it on similar lines of r8a7743/44.

Yeah. I know it's missing for a few other SoCs, too.

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

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