linux-kernel - Re: [PATCH 1/2] dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu support

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Message-ID: <41cbab99441c9475197cacd71a4b204b17f024f3.camel@mediatek.com>
Date:   Mon, 9 Jan 2023 07:56:10 +0000
From:   Allen-KH Cheng (程冠勳) 
        <Allen-KH.Cheng@...iatek.com>
To:     "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "krzysztof.kozlowski@...aro.org" <krzysztof.kozlowski@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/2] dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu
 support

Hi Krzysztof,

On Fri, 2023-01-06 at 13:30 +0100, Krzysztof Kozlowski wrote:
> On 06/01/2023 12:53, Allen-KH Cheng wrote:
> > In some applications, the mtk-wdt requires the toprgu (TOP Reset
> > Generation Unit) to reset counter after wdt resets. Add optional
> > mediatek,reset-by-toprgu property to enable it.
> > 
> > Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
> > ---
> >  .../devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml        | 4
> > ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
> > b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
> > index b3605608410c..bf06dcd0c12c 100644
> > --- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-
> > wdt.yaml
> > +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-
> > wdt.yaml
> > @@ -52,6 +52,10 @@ properties:
> >      description: Disable sending output reset signal
> >      type: boolean
> >  
> > +  mediatek,reset-by-toprgu:
> > +    description: Reset counter by toprgu
> 
> Do not copy the property name in description but actually describe
> it.
> 
> Also "toprgu" is a bit cryptic.
> 
> Best regards,
> Krzysztof
> 

Sorry for being unclear.

We name toprgu for "TOP Reset Generation Unit" in the mtk SoC, which is
used to reset the system.

mediatek,reset-by-toprgu:
   description: If present, means the watchdog timer will reset by
toprgu after system resets.

What do you think?



Thanks,
Allen