linux-kernel - Re: [PATCH 6/9] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB role switching

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Date: Thu, 22 Feb 2024 21:41:20 +0530
From: Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>
To: Bjorn Andersson <quic_bjorande@...cinc.com>,
        Rob Clark
	<robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        "Dmitry
 Baryshkov" <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        "Marijn Suijten" <marijn.suijten@...ainline.org>,
        David Airlie
	<airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        <cros-qcom-dts-watchers@...omium.org>,
        "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>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH 6/9] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB role
 switching



On 2/22/2024 4:49 AM, Bjorn Andersson wrote:
> With the ADSP remoteproc loaded pmic_glink can be introduced and wired
> up to provide role and orientation switching signals.
> 
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---
>   arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 48 +++++++++++++++++++++++++++-
>   1 file changed, 47 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index ab498494caea..079bf43b14cc 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -121,6 +121,41 @@ debug_vm_mem: debug-vm@...00000 {
>   		};
>   	};
>   
> +	pmic-glink {
> +		compatible = "qcom,qcm6490-pmic-glink", "qcom,pmic-glink";
> +
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		connector@0 {
> +			compatible = "usb-c-connector";
> +			reg = <0>;
> +			power-role = "dual";
> +			data-role = "dual";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +
> +					pmic_glink_hs_in: endpoint {
> +						remote-endpoint = <&usb_1_dwc3_hs>;
> +					};
> +				};
> +
> +				port@1 {
> +					reg = <1>;
> +
> +					pmic_glink_ss_in: endpoint {
> +						remote-endpoint = <&usb_1_dwc3_ss>;
> +					};
> +				};

For the role switching part:
Tested-By: Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>

Regards,
Krishna,