linux-kernel - Re: [PATCH v3 3/9] arm64: dts: qcom: sm8250: describe HS signals properly

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Message-ID: <CAA8EJpqdevzsN12m-EnxdFbCa5WgiSDMDhtjyf80th1NZwoD6Q@mail.gmail.com>
Date: Tue, 2 Apr 2024 13:33:44 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Luca Weiss <luca.weiss@...rphone.com>
Subject: Re: [PATCH v3 3/9] arm64: dts: qcom: sm8250: describe HS signals properly

On Tue, 2 Apr 2024 at 12:42, Bryan O'Donoghue
<bryan.odonoghue@...aro.org> wrote:
>
> On 01/04/2024 21:33, Dmitry Baryshkov wrote:
> > Instead
> > there is a HighSpeed signal lane between DWC3 controller and the USB-C
> > connector.
>
> I still don't think this is an accurate statement. The upstream names
> and labels should be followed for consistency but role-switching and the
> DP/DN lines on the type-c port are not related.

I fully agree with you. And that's why I'm replacing the labels. If
you open the bindings for usb-c-connector and for the snps,dwc3 host,
you will see that both bindings describe HS/SS ports. DWC3 also
describes a single port for usb-data-role switching, which can be used
instead of HS/SS ports, but usb-c-connector doesn't have this option.


-- 
With best wishes
Dmitry