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From:   "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date:   Mon, 18 May 2020 14:23:15 +0100
Message-ID: <CA+V-a8uuP9d6dNeRpn3O0_aOc15CqWoh0bbAfYze1_hn0dCh8g@mail.gmail.com>
Subject: Re: [PATCH 17/17] ARM: dts: r8a7742: Add RWDT node
To:     Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc:     Geert Uytterhoeven <geert@linux-m68k.org>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
        Jens Axboe <axboe@kernel.dk>, Rob Herring <robh+dt@kernel.org>,
        Wolfram Sang <wsa+renesas@sang-engineering.com>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        "David S. Miller" <davem@davemloft.net>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        Guenter Roeck <linux@roeck-us.net>, linux-ide@vger.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux I2C <linux-i2c@vger.kernel.org>,
        Linux MMC List <linux-mmc@vger.kernel.org>,
        netdev <netdev@vger.kernel.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        Linux Watchdog Mailing List <linux-watchdog@vger.kernel.org>
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Hi Sergei,

On Mon, May 18, 2020 at 2:17 PM Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
>
> Hello!
>
> 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@bp.renesas.com>
> >>> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.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@e6020000 {
> >>> +                       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.
>
Agreed will add, I had followed it on similar lines of r8a7743/44.

Cheers,
--Prabhakar