diff mbox series

[5/5] arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB role switching

Message ID 20240322-fp4-tcpm-v1-5-c5644099d57b@fairphone.com (mailing list archive)
State Superseded
Headers show
Series Add TCPM support for PM7250B and Fairphone 4 | expand

Commit Message

Luca Weiss March 22, 2024, 8:01 a.m. UTC
Configure the Type-C and VBUS regulator on PM7250B and wire it up to the
USB PHY, so that USB role and orientation switching works.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
---
With this patch I'm not quite sure if the 'ports' are connected
correctly, though functionally everything appears to work fine.

On some other SoCs port@1 in qmpphy and a second port in dwc3 are
connected together also - one port of USB 2.0 HS, one for USB 3.0 SS.

Here I'm following sm8250's solution. Also checking the binding doc
doesn't reveal anything useful.
---
 arch/arm64/boot/dts/qcom/sm6350.dtsi              | 25 ++++++++++
 arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 57 ++++++++++++++++++++++-
 2 files changed, 81 insertions(+), 1 deletion(-)

Comments

Dmitry Baryshkov March 22, 2024, 10:54 a.m. UTC | #1
On Fri, 22 Mar 2024 at 10:03, Luca Weiss <luca.weiss@fairphone.com> wrote:
>
> Configure the Type-C and VBUS regulator on PM7250B and wire it up to the
> USB PHY, so that USB role and orientation switching works.
>
> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
> ---
> With this patch I'm not quite sure if the 'ports' are connected
> correctly, though functionally everything appears to work fine.
>
> On some other SoCs port@1 in qmpphy and a second port in dwc3 are
> connected together also - one port of USB 2.0 HS, one for USB 3.0 SS.
>
> Here I'm following sm8250's solution. Also checking the binding doc
> doesn't reveal anything useful.

Thanks for pointing it out. The SM8250 / RB5 predated final DP
bindings / graphs. As such it didn't fully describe the signal chain
(the signals go from DWC3 and from DP controllers to the QMP PHY,
where they are muxed to the 4 output lanes).
I'll post an update for sm8250 / bindings doc.

I'd kindly ask to connect qmp / port@1 and dwc / port@1

> ---
>  arch/arm64/boot/dts/qcom/sm6350.dtsi              | 25 ++++++++++
>  arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 57 ++++++++++++++++++++++-
>  2 files changed, 81 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> index 24bcec3366ef..b267500467f0 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> @@ -1686,6 +1686,27 @@ usb_1_qmpphy: phy@88e8000 {
>                         #phy-cells = <1>;
>
>                         status = "disabled";
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               port@0 {
> +                                       reg = <0>;
> +
> +                                       usb_1_qmpphy_out: endpoint {};
> +                               };
> +
> +                               port@1 {
> +                                       reg = <1>;
> +                               };
> +
> +                               port@2 {
> +                                       reg = <2>;
> +
> +                                       usb_1_qmpphy_dp_in: endpoint {};
> +                               };
> +                       };
>                 };
>
>                 dc_noc: interconnect@9160000 {
> @@ -1861,6 +1882,10 @@ usb_1_dwc3: usb@a600000 {
>                                 snps,hird-threshold = /bits/ 8 <0x10>;
>                                 phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
>                                 phy-names = "usb2-phy", "usb3-phy";
> +
> +                               port {
> +                                       usb_1_role_switch_out: endpoint {};
> +                               };
>                         };
>                 };
>
> diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> index bc67e8c1fe4d..104f23ec322d 100644
> --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> @@ -19,6 +19,7 @@
>  #include <dt-bindings/leds/common.h>
>  #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/usb/pd.h>
>  #include "sm7225.dtsi"
>  #include "pm6150l.dtsi"
>  #include "pm6350.dtsi"
> @@ -543,6 +544,50 @@ conn-therm@1 {
>         };
>  };
>
> +&pm7250b_typec {
> +       vdd-pdphy-supply = <&vreg_l3a>;
> +
> +       status = "okay";
> +
> +       connector {
> +               compatible = "usb-c-connector";
> +
> +               power-role = "source";
> +               data-role = "dual";
> +               self-powered;
> +
> +               source-pdos = <PDO_FIXED(5000, 1500,
> +                                        PDO_FIXED_DUAL_ROLE |
> +                                        PDO_FIXED_USB_COMM |
> +                                        PDO_FIXED_DATA_SWAP)>;
> +
> +               ports {
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +
> +                       port@0 {
> +                               reg = <0>;
> +                               pm7250b_role_switch_in: endpoint {
> +                                       remote-endpoint = <&usb_1_role_switch_out>;
> +                               };
> +                       };
> +
> +                       port@1 {
> +                               reg = <1>;
> +                               pm7250b_typec_mux_in: endpoint {
> +                                       remote-endpoint = <&usb_1_qmpphy_out>;
> +                               };
> +                       };
> +               };
> +       };
> +};
> +
> +&pm7250b_vbus {
> +       regulator-min-microamp = <500000>;
> +       regulator-max-microamp = <1500000>;
> +       status = "okay";
> +};
> +
>  &pmk8350_rtc {
>         status = "okay";
>  };
> @@ -726,7 +771,12 @@ &usb_1 {
>
>  &usb_1_dwc3 {
>         maximum-speed = "super-speed";
> -       dr_mode = "peripheral";
> +       dr_mode = "otg";
> +       usb-role-switch;
> +};
> +
> +&usb_1_role_switch_out {
> +       remote-endpoint = <&pm7250b_role_switch_in>;
>  };
>
>  &usb_1_hsphy {
> @@ -740,10 +790,15 @@ &usb_1_hsphy {
>  &usb_1_qmpphy {
>         vdda-phy-supply = <&vreg_l22a>;
>         vdda-pll-supply = <&vreg_l16a>;
> +       orientation-switch;
>
>         status = "okay";
>  };
>
> +&usb_1_qmpphy_out {
> +       remote-endpoint = <&pm7250b_typec_mux_in>;
> +};
> +
>  &wifi {
>         vdd-0.8-cx-mx-supply = <&vreg_l4a>;
>         vdd-1.8-xo-supply = <&vreg_l7a>;
>
> --
> 2.44.0
>
>
Bryan O'Donoghue March 22, 2024, 10:58 a.m. UTC | #2
On 22/03/2024 08:01, Luca Weiss wrote:
> Configure the Type-C and VBUS regulator on PM7250B and wire it up to the
> USB PHY, so that USB role and orientation switching works.
> 
> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
> ---
> With this patch I'm not quite sure if the 'ports' are connected
> correctly, though functionally everything appears to work fine.
> 
> On some other SoCs port@1 in qmpphy and a second port in dwc3 are
> connected together also - one port of USB 2.0 HS, one for USB 3.0 SS.
> 
> Here I'm following sm8250's solution. Also checking the binding doc
> doesn't reveal anything useful.

I don't see a redriver on your schematics which appears to be the only 
big difference to the qrb5165 reference.

https://www.fairphone.com/wp-content/uploads/2022/09/FP4_Information-for-repairers-and-recyclers.pdf


> ---
>   arch/arm64/boot/dts/qcom/sm6350.dtsi              | 25 ++++++++++
>   arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 57 ++++++++++++++++++++++-
>   2 files changed, 81 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> index 24bcec3366ef..b267500467f0 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> @@ -1686,6 +1686,27 @@ usb_1_qmpphy: phy@88e8000 {
>   			#phy-cells = <1>;
>   
>   			status = "disabled";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +
> +					usb_1_qmpphy_out: endpoint {};
> +				};
> +
> +				port@1 {
> +					reg = <1>;
> +				};
> +
> +				port@2 {
> +					reg = <2>;
> +
> +					usb_1_qmpphy_dp_in: endpoint {};
> +				};
> +			};
>   		};
>   
>   		dc_noc: interconnect@9160000 {
> @@ -1861,6 +1882,10 @@ usb_1_dwc3: usb@a600000 {
>   				snps,hird-threshold = /bits/ 8 <0x10>;
>   				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
>   				phy-names = "usb2-phy", "usb3-phy";
> +
> +				port {
> +					usb_1_role_switch_out: endpoint {};
> +				};
>   			};
>   		};
>   
> diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> index bc67e8c1fe4d..104f23ec322d 100644
> --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> @@ -19,6 +19,7 @@
>   #include <dt-bindings/leds/common.h>
>   #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>   #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/usb/pd.h>
>   #include "sm7225.dtsi"
>   #include "pm6150l.dtsi"
>   #include "pm6350.dtsi"
> @@ -543,6 +544,50 @@ conn-therm@1 {
>   	};
>   };
>   
> +&pm7250b_typec {
> +	vdd-pdphy-supply = <&vreg_l3a>;
> +
> +	status = "okay";
> +
> +	connector {
> +		compatible = "usb-c-connector";
> +
> +		power-role = "source";
> +		data-role = "dual";
> +		self-powered;
> +
> +		source-pdos = <PDO_FIXED(5000, 1500,
> +					 PDO_FIXED_DUAL_ROLE |
> +					 PDO_FIXED_USB_COMM |
> +					 PDO_FIXED_DATA_SWAP)>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				pm7250b_role_switch_in: endpoint {
> +					remote-endpoint = <&usb_1_role_switch_out>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				pm7250b_typec_mux_in: endpoint {
> +					remote-endpoint = <&usb_1_qmpphy_out>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&pm7250b_vbus {
> +	regulator-min-microamp = <500000>;
> +	regulator-max-microamp = <1500000>;
> +	status = "okay";
> +};
> +
>   &pmk8350_rtc {
>   	status = "okay";
>   };
> @@ -726,7 +771,12 @@ &usb_1 {
>   
>   &usb_1_dwc3 {
>   	maximum-speed = "super-speed";
> -	dr_mode = "peripheral";
> +	dr_mode = "otg";
> +	usb-role-switch;
> +};
> +
> +&usb_1_role_switch_out {
> +	remote-endpoint = <&pm7250b_role_switch_in>;
>   };
>   
>   &usb_1_hsphy {
> @@ -740,10 +790,15 @@ &usb_1_hsphy {
>   &usb_1_qmpphy {
>   	vdda-phy-supply = <&vreg_l22a>;
>   	vdda-pll-supply = <&vreg_l16a>;
> +	orientation-switch;
>   
>   	status = "okay";
>   };
>   
> +&usb_1_qmpphy_out {
> +	remote-endpoint = <&pm7250b_typec_mux_in>;
> +};
> +
>   &wifi {
>   	vdd-0.8-cx-mx-supply = <&vreg_l4a>;
>   	vdd-1.8-xo-supply = <&vreg_l7a>;
> 

This looks consistent with 8250

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
index 24bcec3366ef..b267500467f0 100644
--- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
@@ -1686,6 +1686,27 @@  usb_1_qmpphy: phy@88e8000 {
 			#phy-cells = <1>;
 
 			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					usb_1_qmpphy_out: endpoint {};
+				};
+
+				port@1 {
+					reg = <1>;
+				};
+
+				port@2 {
+					reg = <2>;
+
+					usb_1_qmpphy_dp_in: endpoint {};
+				};
+			};
 		};
 
 		dc_noc: interconnect@9160000 {
@@ -1861,6 +1882,10 @@  usb_1_dwc3: usb@a600000 {
 				snps,hird-threshold = /bits/ 8 <0x10>;
 				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
 				phy-names = "usb2-phy", "usb3-phy";
+
+				port {
+					usb_1_role_switch_out: endpoint {};
+				};
 			};
 		};
 
diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
index bc67e8c1fe4d..104f23ec322d 100644
--- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
+++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
@@ -19,6 +19,7 @@ 
 #include <dt-bindings/leds/common.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/usb/pd.h>
 #include "sm7225.dtsi"
 #include "pm6150l.dtsi"
 #include "pm6350.dtsi"
@@ -543,6 +544,50 @@  conn-therm@1 {
 	};
 };
 
+&pm7250b_typec {
+	vdd-pdphy-supply = <&vreg_l3a>;
+
+	status = "okay";
+
+	connector {
+		compatible = "usb-c-connector";
+
+		power-role = "source";
+		data-role = "dual";
+		self-powered;
+
+		source-pdos = <PDO_FIXED(5000, 1500,
+					 PDO_FIXED_DUAL_ROLE |
+					 PDO_FIXED_USB_COMM |
+					 PDO_FIXED_DATA_SWAP)>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				pm7250b_role_switch_in: endpoint {
+					remote-endpoint = <&usb_1_role_switch_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				pm7250b_typec_mux_in: endpoint {
+					remote-endpoint = <&usb_1_qmpphy_out>;
+				};
+			};
+		};
+	};
+};
+
+&pm7250b_vbus {
+	regulator-min-microamp = <500000>;
+	regulator-max-microamp = <1500000>;
+	status = "okay";
+};
+
 &pmk8350_rtc {
 	status = "okay";
 };
@@ -726,7 +771,12 @@  &usb_1 {
 
 &usb_1_dwc3 {
 	maximum-speed = "super-speed";
-	dr_mode = "peripheral";
+	dr_mode = "otg";
+	usb-role-switch;
+};
+
+&usb_1_role_switch_out {
+	remote-endpoint = <&pm7250b_role_switch_in>;
 };
 
 &usb_1_hsphy {
@@ -740,10 +790,15 @@  &usb_1_hsphy {
 &usb_1_qmpphy {
 	vdda-phy-supply = <&vreg_l22a>;
 	vdda-pll-supply = <&vreg_l16a>;
+	orientation-switch;
 
 	status = "okay";
 };
 
+&usb_1_qmpphy_out {
+	remote-endpoint = <&pm7250b_typec_mux_in>;
+};
+
 &wifi {
 	vdd-0.8-cx-mx-supply = <&vreg_l4a>;
 	vdd-1.8-xo-supply = <&vreg_l7a>;