linux-kernel - Re: [PATCH 2/3] mips: dts: ralink: mt7621: add phandle to system controller node for watchdog

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Date:   Fri, 10 Feb 2023 12:29:05 +0100
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
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,
        arinc.unal@...nc9.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 2/3] mips: dts: ralink: mt7621: add phandle to system
 controller node for watchdog

Hi Krzysztof,

On Fri, Feb 10, 2023 at 12:00 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 10/02/2023 07:56, 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
>
> ??? This does not make sense.

What do you mean? The commit message itself? I need the phandle to
'sysc' system controller node for accessing reset status registers
inside the watchdog driver code.

>
> > operations in driver code.
> >
> > Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> > ---
> >  arch/mips/boot/dts/ralink/mt7621.dtsi | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/mips/boot/dts/ralink/mt7621.dtsi b/arch/mips/boot/dts/ralink/mt7621.dtsi
> > index 5ca40fd21..ebee23a2b 100644
> > --- a/arch/mips/boot/dts/ralink/mt7621.dtsi
> > +++ b/arch/mips/boot/dts/ralink/mt7621.dtsi
> > @@ -71,8 +71,9 @@ sysc: syscon@0 {
> >               };
> >
> >               wdt: wdt@100 {
> > -                     compatible = "mediatek,mt7621-wdt";
> > +                     compatible = "mediatek,mt7621-wdt", "syscon";
>
> Why do you need syscon?

True, will drop, thanks!

>
> Best regards,
> Krzysztof
>

Best regards,
    Sergio Paracuellos