linux-kernel - Re: [PATCH v3 2/4] mips: dts: ralink: mt7621: add phandle to system controller node for watchdog

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Date:   Sat, 11 Feb 2023 08:16:26 +0100
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Arınç ÜNAL <arinc.unal@...nc9.com>
Cc:     linux-watchdog@...r.kernel.org, wim@...ux-watchdog.org,
        linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        tsbogend@...ha.franken.de, p.zabel@...gutronix.de,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH v3 2/4] mips: dts: ralink: mt7621: add phandle to system
 controller node for watchdog

Hi Arınç,

On Fri, Feb 10, 2023 at 6:47 PM Arınç ÜNAL <arinc.unal@...nc9.com> wrote:
>
> Could you also change the node name to watchdog@...? make dtbs_check
> points it out:
>
> wdt@100: $nodename:0: 'wdt@...' does not match '^watchdog(@.*|-[0-9a-f])?$'

Sure, let me add a small patch fixing this warning in the series.

>
> Thanks.
> Arınç

Best regards,
    Sergio Paracuellos

>
> On 10.02.2023 20:38, Sergio Paracuellos wrote:
> > To allow to access system controller registers from watchdog driver code
> > add a phandle in the watchdog 'wdt' node. This avoid using arch dependent
> > operations in driver code.
> >
> > Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> > ---
> >   arch/mips/boot/dts/ralink/mt7621.dtsi | 1 +
> >   1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/mips/boot/dts/ralink/mt7621.dtsi b/arch/mips/boot/dts/ralink/mt7621.dtsi
> > index 5ca40fd21..764916eaf 100644
> > --- a/arch/mips/boot/dts/ralink/mt7621.dtsi
> > +++ b/arch/mips/boot/dts/ralink/mt7621.dtsi
> > @@ -73,6 +73,7 @@ sysc: syscon@0 {
> >               wdt: wdt@100 {
> >                       compatible = "mediatek,mt7621-wdt";
> >                       reg = <0x100 0x100>;
> > +                     mediatek,sysctl = <&sysc>;
> >               };
> >
> >               gpio: gpio@600 {