linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: Enable USB controllers for QCS8300

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Message-ID: <xijjs445fzeuzbj2bg3ziwlzenrk4wo5zlyze4j5mldb444oj7@73ynic4xqfdj>
Date: Sat, 26 Oct 2024 20:36:08 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Krishna Kurapati <quic_kriskura@...cinc.com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Rob Herring <robh@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, quic_ppratap@...cinc.com, 
	quic_jackp@...cinc.com
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: Enable USB controllers for
 QCS8300

On Fri, Oct 11, 2024 at 01:16:19PM +0530, Krishna Kurapati wrote:
> Enable primary USB controller on QCS8300 Ride platform. The primary USB
> controller is made "peripheral", as this is intended to be connected to
> a host for debugging use cases.
> 
> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> index 7eed19a694c3..3e925228379c 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> @@ -265,3 +265,26 @@ &ufs_mem_phy {
>  	vdda-pll-supply = <&vreg_l5a>;
>  	status = "okay";
>  };
> +
> +&usb_1_hsphy {
> +	vdda-pll-supply = <&vreg_l7a>;
> +	vdda18-supply = <&vreg_l7c>;
> +	vdda33-supply = <&vreg_l9a>;
> +
> +	status = "okay";
> +};
> +
> +&usb_qmpphy {
> +	vdda-phy-supply = <&vreg_l7a>;
> +	vdda-pll-supply = <&vreg_l5a>;
> +
> +	status = "okay";
> +};
> +
> +&usb_1 {
> +	status = "okay";
> +};
> +
> +&usb_1_dwc3 {
> +	dr_mode = "peripheral";
> +};

So, can it be used as a USB host controller / connector? What needs to
be done in such a case?

-- 
With best wishes
Dmitry