linux-kernel - Re: [PATCH v2 27/28] dt-bindings: net: fsl,qmc-hdlc: Add framer support

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Date:   Thu, 3 Aug 2023 10:23:47 +0200
From:   Herve Codina <herve.codina@...tlin.com>
To:     Rob Herring <robh@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Randy Dunlap <rdunlap@...radead.org>, netdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, alsa-devel@...a-project.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 27/28] dt-bindings: net: fsl,qmc-hdlc: Add framer
 support

Hi Rob,

On Wed, 2 Aug 2023 18:42:59 -0600
Rob Herring <robh@...nel.org> wrote:

> On Wed, Jul 26, 2023 at 05:02:23PM +0200, Herve Codina wrote:
> > A framer can be connected to the QMC HDLC.
> > If present, this framer is the interface between the TDM used by the QMC
> > HDLC and the E1/T1 line.
> > The QMC HDLC can use this framer to get information about the line and
> > configure the line.
> > 
> > Add an optional framer property to reference the framer itself.
> > 
> > Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> > ---
> >  Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml b/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml
> > index 8bb6f34602d9..bf29863ab419 100644
> > --- a/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml
> > +++ b/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml
> > @@ -27,6 +27,11 @@ properties:
> >        Should be a phandle/number pair. The phandle to QMC node and the QMC
> >        channel to use.
> >  
> > +  framer:
> > +    $ref: /schemas/types.yaml#/definitions/phandle  
> 
> Now you've defined this property twice. Please avoid doing that.

I don't see what you mean.

I previously defined the framer property at the framer-codec node as it is
a framer consumer (it was a mistake because this framer-codec node is a child of
the framer node but that's an other story).

Here, at the qmc-hdlc node, I define this property in order to use the framer as a
consumer too.

What is wrong ?

Best regards,
Hervé

> 
> > +    description:
> > +      phandle to the framer node
> > +
> >  required:
> >    - compatible
> >    - fsl,qmc-chan
> > -- 
> > 2.41.0
> >