linux-kernel - RE: [PATCH] arm64: dts: renesas: rzg2ul-smarc-som: Drop enabling wdt2

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Date:   Mon, 19 Sep 2022 10:06:38 +0000
From:   Biju Das <biju.das.jz@...renesas.com>
To:     "Lad, Prabhakar" <prabhakar.csengg@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
CC:     Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: RE: [PATCH] arm64: dts: renesas: rzg2ul-smarc-som: Drop enabling wdt2

Hi Prabhakar,

> -----Original Message-----
> From: Lad, Prabhakar <prabhakar.csengg@...il.com>
> Sent: 19 September 2022 10:48
> To: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: Magnus Damm <magnus.damm@...il.com>; Rob Herring
> <robh+dt@...nel.org>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@...aro.org>; linux-renesas-
> soc@...r.kernel.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; Biju Das <biju.das.jz@...renesas.com>;
> Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
> Subject: Re: [PATCH] arm64: dts: renesas: rzg2ul-smarc-som: Drop
> enabling wdt2
> 
> Hi Geert,
> 
> Thank you for the review.
> 
> On Sun, Sep 18, 2022 at 10:04 AM Geert Uytterhoeven <geert@...ux-
> m68k.org> wrote:
> >
> > On Wed, Sep 14, 2022 at 3:43 PM Prabhakar
> <prabhakar.csengg@...il.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > >
> > > WDT CH2 is specifically to check the operation of Cortex-M33 CPU
> so
> > > don't enable WDT2 by default.
> > >
> For consistency I'll drop enabling WDT2 from the RZ/G2L{C} too.

Does remove unused clocks turn off WDT2 clock during late init??

If that is the case, we should remove entries from clock table as well?

Cheers,
Biju