netdev - Re: [PATCH v5 25/31] dt-bindings: net: Add the Lantiq PEF2256 E1/T1/J1 framer

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Date: Tue, 12 Sep 2023 13:54:05 -0500
From: Rob Herring <robh@...nel.org>
To: Conor Dooley <conor@...nel.org>
Cc: Herve Codina <herve.codina@...tlin.com>,
	"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-@....codeaurora.org,
	devel@...a-project.org, Simon Horman <horms@...nel.org>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v5 25/31] dt-bindings: net: Add the Lantiq PEF2256
 E1/T1/J1 framer

On Tue, Sep 12, 2023 at 07:13:32PM +0100, Conor Dooley wrote:
> Yo,
> 
> I'm not au fait enough with this to leave particularly meaningful
> comments, so just some minor ones for you.
> 
> On Tue, Sep 12, 2023 at 12:14:44PM +0200, Herve Codina wrote:
> > The Lantiq PEF2256 is a framer and line interface component designed to
> > fulfill all required interfacing between an analog E1/T1/J1 line and the
> > digital PCM system highway/H.100 bus.
> > 
> > Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> > Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> 
> Missing a co-developed-by?

Whomever sends the patch should have the last Sob.

> 
> > ---
> >  .../bindings/net/lantiq,pef2256.yaml          | 214 ++++++++++++++++++
> >  1 file changed, 214 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/net/lantiq,pef2256.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml b/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml
> > new file mode 100644
> > index 000000000000..c4f21678bf6a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/lantiq,pef2256.yaml
> > @@ -0,0 +1,214 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/lantiq,pef2256.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Lantiq PEF2256
> > +
> > +maintainers:
> > +  - Herve Codina <herve.codina@...tlin.com>
> > +
> > +description:
> > +  The Lantiq PEF2256, also known as Infineon PEF2256 or FALC56, is a framer and
> > +  line interface component designed to fulfill all required interfacing between
> > +  an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - const: lantiq,pef2256
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: Master clock
> 
> My OCD is rather upset by the inconsistent capitalisation used here :/
> 
> > +      - description: System Clock Receive
> > +      - description: System Clock Transmit
> > +
> > +  clock-names:
> > +    items:
> > +      - const: mclk
> > +      - const: sclkr
> > +      - const: sclkx
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  reset-gpios:
> > +    description:
> > +      GPIO used to reset the device.
> > +    maxItems: 1
> > +
> > +  pinctrl:
> > +    $ref: /schemas/pinctrl/pinctrl.yaml#
> > +    additionalProperties: false
> > +
> > +    patternProperties:
> > +      '-pins$':
> > +        type: object
> > +        $ref: /schemas/pinctrl/pinmux-node.yaml#
> > +        additionalProperties: false
> > +
> > +        properties:
> > +          pins:
> > +            enum: [ RPA, RPB, RPC, RPD, XPA, XPB, XPC, XPD ]
> > +
> > +          function:
> > +            enum: [ SYPR, RFM, RFMB, RSIGM, RSIG, DLR, FREEZE, RFSP, LOS,
> > +                    SYPX, XFMS, XSIG, TCLK, XMFB, XSIGM, DLX, XCLK, XLT,
> > +                    GPI, GPOH, GPOL ]
> > +
> > +        required:
> > +          - pins
> > +          - function
> > +
> > +  lantiq,data-rate-bps:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    enum: [2048000, 4096000, 8192000, 16384000]
> 
> -kBps is a standard suffix, would it be worth using that instead here?
> What you have would fit as even multiples.
> Otherwise Rob, should dt-schema grow -bps as a standard suffix?

Yeah, I think that makes sense. I've added it now.

Rob