linux-kernel - Re: [PATCH v2 08/11] arm64: dts: qcom: sm8350-hdk: add pmic glink node

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Date:   Fri, 10 Feb 2023 16:21:24 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 08/11] arm64: dts: qcom: sm8350-hdk: add pmic glink
 node



On 10.02.2023 16:02, Neil Armstrong wrote:
> Add the pmic glink node linked with the DWC3 USB controller
> switched to OTG mode and tagged with usb-role-switch.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 77 ++++++++++++++++++++++++++++-----
>  1 file changed, 65 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> index 54654eb75c28..28fc9a835c5d 100644
> --- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> @@ -31,6 +31,40 @@ hdmi_con: endpoint {
>  		};
>  	};
>  
> +	pmic-glink {
> +		compatible = "qcom,sm8350-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>;
> +					};
> +				};
> +			};
> +		};
> +	};
> +
>  	vph_pwr: vph-pwr-regulator {
>  		compatible = "regulator-fixed";
>  		regulator-name = "vph_pwr";
> @@ -666,23 +700,42 @@ &usb_1 {
>  };
>  
>  &usb_1_dwc3 {
> -	/* TODO: Define USB-C connector properly */
> -	dr_mode = "peripheral";
> -};
> +	dr_mode = "otg";
> +	usb-role-switch;
>  
> -&usb_1_hsphy {
Are you removing the hsphy completely?

Konrad
> -	status = "okay";
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
>  
> -	vdda-pll-supply = <&vreg_l5b_0p88>;
> -	vdda18-supply = <&vreg_l1c_1p8>;
> -	vdda33-supply = <&vreg_l2b_3p07>;
> +		port@0 {
> +			reg = <0>;
> +
> +			usb_1_dwc3_hs: endpoint {
> +				remote-endpoint = <&pmic_glink_hs_in>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +
> +			usb_1_dwc3_ss: endpoint {
> +				remote-endpoint = <&pmic_glink_ss_in>;
> +			};
> +		};
> +	};
>  };
>  
> -&usb_1_qmpphy {
> -	status = "okay";
> +&usb_1_dwc3 {
> +	dr_mode = "otg";
> +	usb-role-switch;
> +};
>  
> -	vdda-phy-supply = <&vreg_l6b_1p2>;
> -	vdda-pll-supply = <&vreg_l1b_0p88>;
> +&usb_1_dwc3_hs {
> +	remote-endpoint = <&pmic_glink_hs_in>;
> +};
> +
> +&usb_1_dwc3_ss {
> +	remote-endpoint = <&pmic_glink_ss_in>;
>  };
>  
>  &usb_2 {
>