linux-kernel - Re: [PATCH v1 03/10] dt-bindings: phy: add rockchip usbdp combo phy document

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Date: Sun, 11 Feb 2024 17:36:40 +0000
From: Conor Dooley <conor@...nel.org>
To: Heiko Stübner <heiko@...ech.de>
Cc: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	linux-rockchip@...ts.infradead.org, linux-phy@...ts.infradead.org,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Frank Wang <frank.wang@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCH v1 03/10] dt-bindings: phy: add rockchip usbdp combo phy
 document

On Fri, Feb 09, 2024 at 11:17:40PM +0100, Heiko Stübner wrote:
> Am Freitag, 9. Februar 2024, 19:17:19 CET schrieb Sebastian Reichel:

> > +  rockchip,dp-lane-mux:

Why "mux" and not "map"?

> > +    $ref: /schemas/types.yaml#/definitions/uint32-array
> > +    minItems: 2
> > +    maxItems: 4
> > +    description:
> > +      An array of physical Tyep-C lanes indexes. Position of an entry determines
> 
> nit: Type-C lane indexes
> 
> > +      the dp lane index, while the value of an entry indicater physical Type-C lane.
> 
> nit: indicates instead of indicater?

If we are talking nits, the first use of "dp" should be "DisplayPort (DP)"
and s/dp/DP/ elsewhere.

> 
> > +      The support dp lanes number are 2 or 4. e.g. for 2 lanes dp lanes map, we could
> 
> nit: The supported dp lane numbers ... ?
> 
> 
> > +      have "rockchip,dp-lane-mux = <2, 3>;", assuming dp lane0 on Type-C phy lane2,
> > +      dp lane1 on Type-C phy lane3. For 4 lanes dp lanes map, we could have
> > +      "rockchip,dp-lane-mux = <0, 1, 2, 3>;", assuming dp lane0 on Type-C phy lane0,
> > +      dp lane1 on Type-C phy lane1, dp lane2 on Type-C phy lane2, dp lane3 on Type-C
> > +      phy lane3.

And

> If dp lane map by DisplayPort Alt mode, this property is not need.

"If DP lanes are mapped by" "not needed."

Cheers,
Conor.

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