linux-kernel - Re: [PATCH v2 05/28] dt-bindings: net: Add support for QMC HDLC

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Date:   Thu, 27 Jul 2023 10:53:15 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Herve Codina <herve.codina@...tlin.com>
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>,
        Rob Herring <robh+dt@...nel.org>,
        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 05/28] dt-bindings: net: Add support for QMC HDLC

On Thu, Jul 27, 2023 at 11:09:48AM +0200, Herve Codina wrote:
> On Thu, 27 Jul 2023 09:19:59 +0100
> Conor Dooley <conor@...nel.org> wrote:
> > On Wed, Jul 26, 2023 at 05:02:01PM +0200, Herve Codina wrote:

> If needed, I can change to:
>   title: QMC (QUICC Multichannel Controller) HDLC
> Let me known if it is better to you.

If it were me writing the binding, I'd probably use something like
"Freescale/NXP QUICC Multichannel Controller (QMC) HDLC", but it is not
a big deal, I just had a "wtf is this" moment :)



> > > +  fsl,qmc-chan:
> > 
> > Perhaps I am just showing my lack of knowledge in this area, but what is
> > fsl specific about wanting a reference to the channel of a "QMC"?
> > Is this something that hardware from other manufacturers would not also
> > want to do?
> 
> The QMC and the QMC channel are something specific to the SoC. This IP is only
> available on some Freescale/NXP SoCs.
> 
> When I upstreamed the 'fsl,qmc-audio.yaml', I first used a generic name for this
> property and Kristoff asked to change to a vendor prefixed name.
>   https://lore.kernel.org/linux-kernel/1dfade07-f8c4-2e16-00dc-c7d183708259@linaro.org/
> 
> Based on this, as the property 'fsl,qmc-chan' has the exact same meaning in
> fsl,qmc-audio.yaml and fsl,qmc-hdlc.yaml, I use the same name.

Okay, thanks for explaining!

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