linux-kernel - Re: [PATCH v6 4/7] dt-bindings: phy: armada-cp110-utmi: add optional swap-dx-lanes property

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Date: Wed, 5 Jun 2024 10:13:37 -0600
From: Rob Herring <robh@...nel.org>
To: Conor Dooley <conor@...nel.org>
Cc: Josua Mayer <josua@...id-run.com>, Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Daniel Baluta <daniel.baluta@....com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Konstantin Porotchkin <kostap@...vell.com>,
	Richard Cochran <richardcochran@...il.com>,
	Yazan Shhady <yazan.shhady@...id-run.com>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
	linux-phy@...ts.infradead.org, netdev@...r.kernel.org
Subject: Re: [PATCH v6 4/7] dt-bindings: phy: armada-cp110-utmi: add optional
 swap-dx-lanes property

On Tue, Jun 04, 2024 at 06:41:03PM +0100, Conor Dooley wrote:
> On Sun, Jun 02, 2024 at 05:49:39PM +0200, Josua Mayer wrote:
> > Armada CP110 UTMI supports swapping D+ and D- signals.
> > usb251xb.yaml already describes a suitable device-tree property for the
> > same purpose but as child usb controller node.
> > 
> > Add optional swap-dx-lanes device-tree property to armada cp110 utmi phy
> > with same semantics as usb251xb:
> > The property lists all ports that swap D+ and D-, unlisted ports are
> > considered correct.
> > 
> > Signed-off-by: Josua Mayer <josua@...id-run.com>
> > ---
> >  .../devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml      | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml b/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml
> > index 9ce7b4c6d208..2ef02aac042a 100644
> > --- a/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml
> > +++ b/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml
> > @@ -41,6 +41,12 @@ properties:
> >        Phandle to the system controller node
> >      $ref: /schemas/types.yaml#/definitions/phandle
> >  
> > +  swap-dx-lanes:
> 
> Missing a vendor prefix.
> Otherwise, to me naive eye, seems okay.

Already have the same property elsewhere, so it's fine.

> 
> > +    $ref: /schemas/types.yaml#/definitions/uint32-array
> > +    description: |
> 
> This | probably isn't needed though, there's not any format here that
> seems worth preserving.
> 
> Thanks,
> Conor.
> 
> > +      Specifies the ports which will swap the differential-pair (D+/D-),
> > +      default is not-swapped.
> > +
> >  # Required child nodes:
> >  
> >  patternProperties:
> > 
> > -- 
> > 2.35.3
> >