linux-kernel - Re: [PATCH 2/3] arm64: dts: qcom: qdu1000-idp: enable USB nodes

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Message-ID: <Zgs7Yau1/jYvys4i@hu-bjorande-lv.qualcomm.com>
Date: Mon, 1 Apr 2024 15:55:29 -0700
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: Komal Bajaj <quic_kbajaj@...cinc.com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring
	<robh+dt@...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>,
        Amrit Anand <quic_amrianan@...cinc.com>
Subject: Re: [PATCH 2/3] arm64: dts: qcom: qdu1000-idp: enable USB nodes

On Tue, Mar 19, 2024 at 11:52:15AM +0200, Dmitry Baryshkov wrote:
> On Tue, 19 Mar 2024 at 11:11, Komal Bajaj <quic_kbajaj@...cinc.com> wrote:
> >
> > Enable both USB controllers and associated hsphy and qmp phy
> > nodes on QDU1000 IDP. Add the usb type B port linked with the
> > DWC3 USB controller switched to OTG mode and tagged with
> > usb-role-switch.
> >
> > Co-developed-by: Amrit Anand <quic_amrianan@...cinc.com>
> > Signed-off-by: Amrit Anand <quic_amrianan@...cinc.com>
> > Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
> > ---
> >  arch/arm64/boot/dts/qcom/qdu1000-idp.dts | 65 ++++++++++++++++++++++++
> >  1 file changed, 65 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
> > index 89b84fb0f70a..26442e707b5e 100644
> > --- a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
> > +++ b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
> > @@ -46,6 +46,33 @@ ppvar_sys: ppvar-sys-regulator {
> >                 regulator-boot-on;
> >         };
> >
> > +       usb_conn_gpio: usb-conn-gpio {
> > +               compatible = "gpio-usb-b-connector";
> 
> If this board has only a USB-B connector, can it really handle USB 3.0?
> 

Here's a USB 3.0 Type-B cable, so no problem there:
https://en.wikipedia.org/wiki/USB_hardware#/media/File:USB_3.0_plug,_type_B_-_1709.jpg


@Komal, please confirm that this is the connector you have on the IDP?

Regards,
Bjorn