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Message-ID: <CABqG17hB_GvQ56ZB+wjhSrDtZLreZ4vPc+3AfUj6AdA3Btd1+Q@mail.gmail.com>
Date:   Thu, 31 Aug 2023 15:15:08 +0530
From:   Naresh Solanki <naresh.solanki@...ements.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Peter Rosin <peda@...ntia.se>, Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Patrick Rudolph <patrick.rudolph@...ements.com>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-binding: Add custom property for MAX7357

Hi

On Wed, 30 Aug 2023 at 20:08, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 30/08/2023 13:57, Naresh Solanki wrote:
> > From: Patrick Rudolph <patrick.rudolph@...ements.com>
> >
> > Add a custom property "maxim,bus-lockup-fix" to enable proprietary
> > features on MAX7357. The driver configures MAX7357 to isolate the
> > failing channel and trigger a flush-out sequence for bus lock-up
> > resolution.
>
> Please use subject prefixes matching the subsystem. You can get them for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching.
Ack
>
> It is "dt-bindings" not binding and several other fields are needed.
Ack
>
> Also "add custom property" is quite generic. When you add next custom
> property you are going to have two commits with the same subject. Just
> make it descriptive - "Add foobar for MAX7357"
Missed Properties in this Patch Series, Will Be Addressed in V2.
So in that case I guess the below title should be fine?
dt-bindings: i2c: Add custom properties for MAX7357/MAX7358

>
>
>
> >
> > Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
> > Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
> > ---
> >  .../devicetree/bindings/i2c/i2c-mux-pca954x.yaml  | 15 +++++++++++++++
> >  1 file changed, 15 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> > index 2d7bb998b0e9..984d4614a270 100644
> > --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> > +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> > @@ -71,6 +71,11 @@ properties:
> >      description: A voltage regulator supplying power to the chip. On PCA9846
> >        the regulator supplies power to VDD2 (core logic) and optionally to VDD1.
> >
> > +  maxim,bus-lockup-fix:
> > +    type: boolean
> > +    description: Isolates only the stuck channel and generates a flush-out sequence
> > +      to attempt to clear the bus lock-up.
>
> Why wouldn't you want it to be enabled all the time? Why should it be
> configurable per-board?
The chip doesn't enable these features by default & it is left to
discretion of board designer to enable the same.

Regards,
Naresh
>
> Best regards,
> Krzysztof
>

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