Re: [PATCH v2 15/15] arm64: dts: qcom: qrb4210-rb2: enable USB-C port handling

["Luca Weiss" <luca.weiss@fairphone.com>]

On Sat Jan 13, 2024 at 9:55 PM CET, Dmitry Baryshkov wrote:
> Plug in USB-C related bits and pieces to enable USB role switching and
> USB-C orientation handling for the Qualcomm RB2 board.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 50 ++++++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/sm6115.dtsi     | 43 +++++++++++++++++++++++++++
>  2 files changed, 93 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> index 52f31f3166c2..696d6d43c56b 100644
> --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> @@ -6,8 +6,10 @@
>  /dts-v1/;
>  
>  #include <dt-bindings/leds/common.h>
> +#include <dt-bindings/usb/pd.h>
>  #include "sm4250.dtsi"
>  #include "pm6125.dtsi"
> +#include "pmi632.dtsi"
>  
>  / {
>  	model = "Qualcomm Technologies, Inc. QRB4210 RB2";
> @@ -256,6 +258,46 @@ kypd_vol_up_n: kypd-vol-up-n-state {
>  	};
>  };
>  
> +&pmi632_typec {
> +	status = "okay";
> +
> +	connector {
> +		compatible = "usb-c-connector";
> +
> +		power-role = "dual";
> +		data-role = "dual";
> +		self-powered;
> +
> +		typec-power-opmode = "default";
> +		pd-disable;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				pmi632_hs_in: endpoint {
> +					remote-endpoint = <&usb_dwc3_hs>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				pmi632_ss_in: endpoint {
> +					remote-endpoint = <&usb_qmpphy_out>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&pmi632_vbus {
> +	regulator-min-microamp = <500000>;
> +	regulator-max-microamp = <3000000>;

Hi Dmitry,

Are you sure vbus can supply 3000mA?

In Qualcomm's document 80-PF208-77 I see 1000mA is the maximum it can
provide, and I see the same value looking into downstream smb5 driver
in sdm632 sources.

https://gerrit-public.fairphone.software/plugins/gitiles/kernel/msm-4.9/+/refs/heads/int/13/fp3/drivers/power/supply/qcom/qpnp-smb5.c#414

Regards
Luca

> +	status = "okay";
> +};
> +
>  &pon_pwrkey {
>  	status = "okay";
>  };
> @@ -607,6 +649,10 @@ &usb {
>  	status = "okay";
>  };
>  
> +&usb_dwc3_hs {
> +	remote-endpoint = <&pmi632_hs_in>;
> +};
> +
>  &usb_hsphy {
>  	vdd-supply = <&vreg_l4a_0p9>;
>  	vdda-pll-supply = <&vreg_l12a_1p8>;
> @@ -622,6 +668,10 @@ &usb_qmpphy {
>  	status = "okay";
>  };
>  
> +&usb_qmpphy_out {
> +	remote-endpoint = <&pmi632_ss_in>;
> +};
> +
>  &wifi {
>  	vdd-0.8-cx-mx-supply = <&vreg_l8a_0p664>;
>  	vdd-1.8-xo-supply = <&vreg_l16a_1p3>;
> diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> index 76c429e8ebab..01dff6641280 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> @@ -878,8 +878,29 @@ usb_qmpphy: phy@1615000 {
>  			clock-output-names = "usb3_phy_pipe_clk_src";
>  
>  			#phy-cells = <0>;
> +			orientation-switch;
>  
>  			status = "disabled";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +
> +					usb_qmpphy_out: endpoint {
> +					};
> +				};
> +
> +				port@1 {
> +					reg = <1>;
> +
> +					usb_qmpphy_usb_ss_in: endpoint {
> +						remote-endpoint = <&usb_dwc3_ss>;
> +					};
> +				};
> +			};
>  		};
>  
>  		system_noc: interconnect@1880000 {
> @@ -1614,6 +1635,28 @@ usb_dwc3: usb@4e00000 {
>  				snps,has-lpm-erratum;
>  				snps,hird-threshold = /bits/ 8 <0x10>;
>  				snps,usb3_lpm_capable;
> +
> +				usb-role-switch;
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +
> +						usb_dwc3_hs: endpoint {
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +
> +						usb_dwc3_ss: endpoint {
> +							remote-endpoint = <&usb_qmpphy_usb_ss_in>;
> +						};
> +					};
> +				};
>  			};
>  		};
>