linux-kernel - Re: [PATCH v2 1/1] dt-bindings: watchdog: starfive,jh7100-wdt: Add compatible for JH8100

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Date:   Wed, 13 Dec 2023 16:35:39 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>
Cc:     conor+dt@...nel.org, devicetree@...r.kernel.org,
        krzysztof.kozlowski+dt@...aro.org, leyfoon.tan@...rfivetech.com,
        linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux@...ck-us.net, robh+dt@...nel.org, samin.guo@...rfivetech.com,
        wim@...ux-watchdog.org, xingyu.wu@...rfivetech.com
Subject: Re: [PATCH v2 1/1] dt-bindings: watchdog: starfive,jh7100-wdt: Add
 compatible for JH8100

On Wed, Dec 13, 2023 at 10:57:59AM +0800, Ji Sheng Teoh wrote:
> On Tue, 12 Dec 2023 16:47:59 +0000
> Conor Dooley <conor@...nel.org> wrote:
> 
> > On Tue, Dec 12, 2023 at 04:46:00PM +0000, Conor Dooley wrote:
> > > On Tue, Dec 12, 2023 at 11:17:31AM +0800, Ji Sheng Teoh wrote:  
> > > > Add "starfive,jh8100-wdt" compatible string for StarFive's JH8100
> > > > watchdog.
> > > > Since JH8100 watchdog only has 1 reset signal, update binding
> > > > document to support one reset for "starfive,jh8100-wdt"
> > > > compatible.
> > > > 
> > > > Signed-off-by: Ley Foon Tan <leyfoon.tan@...rfivetech.com>
> > > > Signed-off-by: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>
> > > > ---
> > > >  .../devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
> > > > | 2 ++ 1 file changed, 2 insertions(+)
> > > > 
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
> > > > b/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
> > > > index 68f3f6fd08a6..02572b16ac08 100644 ---
> > > > a/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
> > > > +++
> > > > b/Documentation/devicetree/bindings/watchdog/starfive,jh7100-wdt.yaml
> > > > @@ -27,6 +27,7 @@ properties: enum:
> > > >        - starfive,jh7100-wdt
> > > >        - starfive,jh7110-wdt
> > > > +      - starfive,jh8100-wdt
> > > >  
> > > >    reg:
> > > >      maxItems: 1
> > > > @@ -45,6 +46,7 @@ properties:
> > > >        - const: core
> > > >  
> > > >    resets:
> > > > +    minItems: 1
> > > >      items:
> > > >        - description: APB reset
> > > >        - description: Core reset  
> > > 
> > > This relaxes the constraints for the existing devices, please add
> > > per compatible constraints to avoid doing so.  
> > 
> Thanks Conor. Just to clarify, are you suggesting to add what was done
> in v1?
> v1:
> https://lore.kernel.org/all/20231209142723.2060196-3-jisheng.teoh@starfivetech.com/

No, but similar. Add numerical constraints that vary per SoC without
changing the names of the resets on a per-SoC basis.:wq

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