linux-kernel - Re: [PATCH v9 6/7] arm64: dts: qcom: qrb5165-rb5: Switch on TCPM usb-role-switching for usb

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Message-ID: <b65c8621-35c1-496a-bc4b-3e3f284ab0c5@linaro.org>
Date:   Sat, 26 Aug 2023 12:54:35 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>, agross@...nel.org,
        andersson@...nel.org, lee@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        sboyd@...nel.org, luca.weiss@...rphone.com
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 6/7] arm64: dts: qcom: qrb5165-rb5: Switch on TCPM
 usb-role-switching for usb_1

On 16.08.2023 13:51, Bryan O'Donoghue wrote:
> Switch on usb-role-switching for usb_1 via TCPM. We need to declare
> usb-role-switch in &usb_1 and associate with the remote-endpoint in TCPM
> which provides the necessary signal.
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 19 ++++++++++++++++++-
>  arch/arm64/boot/dts/qcom/sm8250.dtsi     |  4 ++++
>  2 files changed, 22 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index 55389f8903b5c..3e34f4e2af14a 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -1269,7 +1269,12 @@ &usb_1 {
>  };
>  
>  &usb_1_dwc3 {
> -	dr_mode = "peripheral";
> +	dr_mode = "otg";
> +	usb-role-switch;
> +};
> +
> +&usb_1_role_switch_out {
> +	remote-endpoint = <&pm8150b_role_switch_in>;
>  };
>  
>  &usb_1_hsphy {
> @@ -1358,5 +1363,17 @@ connector {
>  					 PDO_FIXED_DUAL_ROLE |
>  					 PDO_FIXED_USB_COMM |
>  					 PDO_FIXED_DATA_SWAP)>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				pm8150b_role_switch_in: endpoint {
I'd rather this be moved to the pmic dt as well, under the tcpm
definition

Konrad