[PATCH 0/2] arm64: dts: qcom: x1e80100: Add external DP support to CRD and T14s

[PATCH 0/2] arm64: dts: qcom: x1e80100: Add external DP support to CRD and T14s

[Abel Vesa]

Both the CRD and T14s support altmode for external DisplayPort over the
USB Type-C connectors. The CRD has 3 such connectors while the T14s has
only 2.

Enabling DP altmode requires the support for the Parade PS8830 USB Type-C
retimer. [1]

Currently, only the DP 4lanes and USB3 modes have been successfully
tested on both CRD and T14s. The DP 2lanes + USB3 mode seems to suggest
that changes are further needed in the QMP PHY driver.

[1]
https://lore.kernel.org/all/20240829-x1e80100-ps8830-v1-0-bcc4790b1d45@linaro.org/

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Abel Vesa (2):
      arm64: dts: qcom: x1e80100-crd: Enable external DP support
      arm64: dts: qcom: x1e80100-t14s: Add external DP support

 .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts     | 278 +++++++++++++-
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts          | 414 ++++++++++++++++++++-
 2 files changed, 682 insertions(+), 10 deletions(-)
---
base-commit: ecc768a84f0b8e631986f9ade3118fa37852fef0
change-id: 20240829-x1e80100-crd-dts-add-external-dp-support-8daf3a516823

Best regards,
-- 
Abel Vesa <abel.vesa@linaro.org>

[PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Abel Vesa]

The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
all of them supporting external DP altmode. Between each QMP
combo PHY and the corresponding Type-C port, sits one Parade PS8830
retimer which handles both orientation and SBU muxing. Add nodes for
each retimer, fix the graphs between connectors and the PHYs accordingly,
add the voltage regulators needed by each retimer and then enable all
3 remaining DPUs.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
 1 file changed, 408 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
index 10b28d870f08..6dfc85eda354 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
@@ -99,7 +99,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss0_ss_in: endpoint {
-						remote-endpoint = <&usb_1_ss0_qmpphy_out>;
+						remote-endpoint = <&retimer_ss0_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss0_con_sbu_in: endpoint {
+						remote-endpoint = <&retimer_ss0_con_sbu_out>;
 					};
 				};
 			};
@@ -128,7 +136,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss1_ss_in: endpoint {
-						remote-endpoint = <&usb_1_ss1_qmpphy_out>;
+						remote-endpoint = <&retimer_ss1_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss1_con_sbu_in: endpoint {
+						remote-endpoint = <&retimer_ss1_con_sbu_out>;
 					};
 				};
 			};
@@ -157,7 +173,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss2_ss_in: endpoint {
-						remote-endpoint = <&usb_1_ss2_qmpphy_out>;
+						remote-endpoint = <&retimer_ss2_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss2_con_sbu_in: endpoint {
+						remote-endpoint = <&retimer_ss2_con_sbu_out>;
 					};
 				};
 			};
@@ -288,6 +312,134 @@ vreg_edp_3p3: regulator-edp-3p3 {
 		regulator-boot-on;
 	};
 
+	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_1P15";
+		regulator-min-microvolt = <1150000>;
+		regulator-max-microvolt = <1150000>;
+
+		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_1p15_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr0_1p8: regulator-rtmr0-1p8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_1P8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&pm8550ve_9_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_1p8_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr0_3p3: regulator-rtmr0-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pm8550_gpios 11 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_3p3_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr1_1p15: regulator-rtmr1-1p15 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_1P15";
+		regulator-min-microvolt = <1150000>;
+		regulator-max-microvolt = <1150000>;
+
+		gpio = <&tlmm 188 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_1p15_reg_en>;
+	};
+
+	vreg_rtmr1_1p8: regulator-rtmr1-1p8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_1P8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 175 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_1p8_reg_en>;
+	};
+
+	vreg_rtmr1_3p3: regulator-rtmr1-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 186 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_3p3_reg_en>;
+	};
+
+	vreg_rtmr2_1p15: regulator-rtmr2-1p15 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR2_1P15";
+		regulator-min-microvolt = <1150000>;
+		regulator-max-microvolt = <1150000>;
+
+		gpio = <&tlmm 189 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr2_1p15_reg_en>;
+	};
+
+	vreg_rtmr2_1p8: regulator-rtmr2-1p8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR2_1P8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 126 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr2_1p8_reg_en>;
+	};
+
+	vreg_rtmr2_3p3: regulator-rtmr2-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR2_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 187 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr2_3p3_reg_en>;
+	};
+
+
+
 	vreg_nvme: regulator-nvme {
 		compatible = "regulator-fixed";
 
@@ -709,6 +861,163 @@ keyboard@3a {
 	};
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	typec-mux@8 {
+		compatible = "parade,ps8830";
+		reg = <0x08>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK5>;
+		clock-names = "xo";
+
+		vdd15-supply = <&vreg_rtmr2_1p15>;
+		vdd18-supply = <&vreg_rtmr2_1p8>;
+		vdd33-supply = <&vreg_rtmr2_3p3>;
+
+		reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;
+
+		orientation-switch;
+		retimer-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				retimer_ss2_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss2_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				retimer_ss2_ss_in: endpoint {
+					remote-endpoint = <&usb_1_ss2_qmpphy_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				retimer_ss2_con_sbu_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss2_con_sbu_in>;
+				};
+			};
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	typec-mux@8 {
+		compatible = "parade,ps8830";
+		reg = <0x08>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK3>;
+		clock-names = "xo";
+
+		vdd15-supply = <&vreg_rtmr0_1p15>;
+		vdd18-supply = <&vreg_rtmr0_1p8>;
+		vdd33-supply = <&vreg_rtmr0_3p3>;
+
+		reset-gpios = <&pm8550_gpios 10 GPIO_ACTIVE_HIGH>;
+
+		retimer-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				retimer_ss0_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss0_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				retimer_ss0_ss_in: endpoint {
+					remote-endpoint = <&usb_1_ss0_qmpphy_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				retimer_ss0_con_sbu_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss0_con_sbu_in>;
+				};
+			};
+		};
+	};
+};
+
+&i2c7 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	typec-mux@8 {
+		compatible = "parade,ps8830";
+		reg = <0x8>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK4>;
+		clock-names = "xo";
+
+		vdd15-supply = <&vreg_rtmr1_1p15>;
+		vdd18-supply = <&vreg_rtmr1_1p8>;
+		vdd33-supply = <&vreg_rtmr1_3p3>;
+
+		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
+
+		retimer-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				retimer_ss1_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss1_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				retimer_ss1_ss_in: endpoint {
+					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				retimer_ss1_con_sbu_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
+				};
+			};
+
+		};
+	};
+};
+
 &i2c8 {
 	clock-frequency = <400000>;
 
@@ -756,6 +1065,30 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp0 {
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dp1 {
+	status = "okay";
+};
+
+&mdss_dp1_out {
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dp2 {
+	status = "okay";
+};
+
+&mdss_dp2_out {
+	data-lanes = <0 1 2 3>;
+};
+
 &mdss_dp3 {
 	compatible = "qcom,x1e80100-dp";
 	/delete-property/ #sound-dai-cells;
@@ -854,6 +1187,33 @@ &pcie6a_phy {
 	status = "okay";
 };
 
+&pm8550_gpios {
+	rtmr0_3p3_reg_en: rtmr0-3p3-reg-en-state {
+		pins = "gpio11";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
+&pm8550ve_8_gpios {
+	rtmr0_1p15_reg_en: rtmr0-1p15-reg-en-state {
+		pins = "gpio8";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
+&pm8550ve_9_gpios {
+	rtmr0_1p8_reg_en: rtmr0-1p8-reg-en-state {
+		pins = "gpio8";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
 &pmc8380_3_gpios {
 	edp_bl_en: edp-bl-en-state {
 		pins = "gpio4";
@@ -1093,6 +1453,48 @@ wake-n-pins {
 		};
 	};
 
+	rtmr1_1p15_reg_en: rtmr1-1p15-reg-en-state {
+		pins = "gpio188";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr1_1p8_reg_en: rtmr1-1p8-reg-en-state {
+		pins = "gpio175";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr1_3p3_reg_en: rtmr1-3p3-reg-en-state {
+		pins = "gpio186";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr2_1p15_reg_en: rtmr2-1p15-reg-en-state {
+		pins = "gpio189";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr2_1p8_reg_en: rtmr2-1p8-reg-en-state {
+		pins = "gpio126";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr2_3p3_reg_en: rtmr2-3p3-reg-en-state {
+		pins = "gpio187";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	tpad_default: tpad-default-state {
 		pins = "gpio3";
 		function = "gpio";
@@ -1164,7 +1566,7 @@ &usb_1_ss0_dwc3_hs {
 };
 
 &usb_1_ss0_qmpphy_out {
-	remote-endpoint = <&pmic_glink_ss0_ss_in>;
+	remote-endpoint = <&retimer_ss0_ss_in>;
 };
 
 &usb_1_ss1_hsphy {
@@ -1196,7 +1598,7 @@ &usb_1_ss1_dwc3_hs {
 };
 
 &usb_1_ss1_qmpphy_out {
-	remote-endpoint = <&pmic_glink_ss1_ss_in>;
+	remote-endpoint = <&retimer_ss1_ss_in>;
 };
 
 &usb_1_ss2_hsphy {
@@ -1228,5 +1630,5 @@ &usb_1_ss2_dwc3_hs {
 };
 
 &usb_1_ss2_qmpphy_out {
-	remote-endpoint = <&pmic_glink_ss2_ss_in>;
+	remote-endpoint = <&retimer_ss2_ss_in>;
 };

-- 
2.34.1

[PATCH 2/2] arm64: dts: qcom: x1e80100-t14s: Add external DP support

[Abel Vesa]

The Lenovo Thinkpad T14s has only 2 USB Type-C ports, both of them
supporting external DP altmode. Between each QMP combo PHY and the
corresponding Type-C port, sits one Parade PS8830 retimer which handles
both orientation and SBU muxing. Add nodes for each retimer, fix the
graphs between connectors and the PHYs accordingly add the voltage
regulators needed by each retimer and then enable DP 0 and 1.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts     | 278 ++++++++++++++++++++-
 1 file changed, 274 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
index 941dfddd6713..08ec2419f95f 100644
--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
@@ -66,7 +66,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss0_ss_in: endpoint {
-						remote-endpoint = <&usb_1_ss0_qmpphy_out>;
+						remote-endpoint = <&retimer_ss0_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss0_con_sbu_in: endpoint {
+						remote-endpoint = <&retimer_ss0_con_sbu_out>;
 					};
 				};
 			};
@@ -95,7 +103,15 @@ port@1 {
 					reg = <1>;
 
 					pmic_glink_ss1_ss_in: endpoint {
-						remote-endpoint = <&usb_1_ss1_qmpphy_out>;
+						remote-endpoint = <&retimer_ss1_ss_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss1_con_sbu_in: endpoint {
+						remote-endpoint = <&retimer_ss1_con_sbu_out>;
 					};
 				};
 			};
@@ -127,6 +143,90 @@ vreg_edp_3p3: regulator-edp-3p3 {
 		regulator-boot-on;
 	};
 
+	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_1P15";
+		regulator-min-microvolt = <1150000>;
+		regulator-max-microvolt = <1150000>;
+
+		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_1p15_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr0_1p8: regulator-rtmr0-1p8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_1P8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&pm8550ve_9_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_1p8_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr0_3p3: regulator-rtmr0-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR0_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pm8550_gpios 11 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&rtmr0_3p3_reg_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_rtmr1_1p15: regulator-rtmr1-1p15 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_1P15";
+		regulator-min-microvolt = <1150000>;
+		regulator-max-microvolt = <1150000>;
+
+		gpio = <&tlmm 188 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_1p15_reg_en>;
+	};
+
+	vreg_rtmr1_1p8: regulator-rtmr1-1p8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_1P8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 175 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_1p8_reg_en>;
+	};
+
+	vreg_rtmr1_3p3: regulator-rtmr1-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_RTMR1_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 186 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtmr1_3p3_reg_en>;
+	};
+
 	vreg_nvme: regulator-nvme {
 		compatible = "regulator-fixed";
 
@@ -484,6 +584,111 @@ keyboard@3a {
 	};
 };
 
+&i2c3 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	typec-mux@8 {
+		compatible = "parade,ps8830";
+		reg = <0x08>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK3>;
+		clock-names = "xo";
+
+		vdd15-supply = <&vreg_rtmr0_1p15>;
+		vdd18-supply = <&vreg_rtmr0_1p8>;
+		vdd33-supply = <&vreg_rtmr0_3p3>;
+
+		reset-gpios = <&pm8550_gpios 10 GPIO_ACTIVE_HIGH>;
+
+		retimer-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				retimer_ss0_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss0_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				retimer_ss0_ss_in: endpoint {
+					remote-endpoint = <&usb_1_ss0_qmpphy_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				retimer_ss0_con_sbu_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss0_con_sbu_in>;
+				};
+			};
+		};
+	};
+};
+
+&i2c7 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	typec-mux@8 {
+		compatible = "parade,ps8830";
+		reg = <0x8>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK4>;
+		clock-names = "xo";
+
+		vdd15-supply = <&vreg_rtmr1_1p15>;
+		vdd18-supply = <&vreg_rtmr1_1p8>;
+		vdd33-supply = <&vreg_rtmr1_3p3>;
+
+		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
+
+		retimer-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				retimer_ss1_ss_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss1_ss_in>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				retimer_ss1_ss_in: endpoint {
+					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				retimer_ss1_con_sbu_out: endpoint {
+					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
+				};
+			};
+
+		};
+	};
+};
+
 &i2c8 {
 	clock-frequency = <400000>;
 
@@ -508,6 +713,22 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp0 {
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dp1 {
+	status = "okay";
+};
+
+&mdss_dp1_out {
+	data-lanes = <0 1 2 3>;
+};
+
 &mdss_dp3 {
 	compatible = "qcom,x1e80100-dp";
 	/delete-property/ #sound-dai-cells;
@@ -588,6 +809,33 @@ &pcie6a_phy {
 	status = "okay";
 };
 
+&pm8550_gpios {
+	rtmr0_3p3_reg_en: rtmr0-3p3-reg-en-state {
+		pins = "gpio11";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
+&pm8550ve_8_gpios {
+	rtmr0_1p15_reg_en: rtmr0-1p15-reg-en-state {
+		pins = "gpio8";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
+&pm8550ve_9_gpios {
+	rtmr0_1p8_reg_en: rtmr0-1p8-reg-en-state {
+		pins = "gpio8";
+		function = "func1";
+		input-disable;
+		output-enable;
+	};
+};
+
 &pmc8380_3_gpios {
 	edp_bl_en: edp-bl-en-state {
 		pins = "gpio4";
@@ -733,6 +981,28 @@ wake-n-pins {
 		};
 	};
 
+	rtmr1_1p15_reg_en: rtmr1-1p15-reg-en-state {
+		pins = "gpio188";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr1_1p8_reg_en: rtmr1-1p8-reg-en-state {
+		pins = "gpio175";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rtmr1_3p3_reg_en: rtmr1-3p3-reg-en-state {
+		pins = "gpio186";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+
 	wcd_default: wcd-reset-n-active-state {
 		pins = "gpio191";
 		function = "gpio";
@@ -771,7 +1041,7 @@ &usb_1_ss0_dwc3_hs {
 };
 
 &usb_1_ss0_qmpphy_out {
-	remote-endpoint = <&pmic_glink_ss0_ss_in>;
+	remote-endpoint = <&retimer_ss0_ss_in>;
 };
 
 &usb_1_ss1_hsphy {
@@ -803,5 +1073,5 @@ &usb_1_ss1_dwc3_hs {
 };
 
 &usb_1_ss1_qmpphy_out {
-	remote-endpoint = <&pmic_glink_ss1_ss_in>;
+	remote-endpoint = <&retimer_ss1_ss_in>;
 };

-- 
2.34.1

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Dmitry Baryshkov]

On Mon, Sep 02, 2024 at 06:01:35PM GMT, Abel Vesa wrote:
> The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> all of them supporting external DP altmode. Between each QMP
> combo PHY and the corresponding Type-C port, sits one Parade PS8830
> retimer which handles both orientation and SBU muxing. Add nodes for
> each retimer, fix the graphs between connectors and the PHYs accordingly,
> add the voltage regulators needed by each retimer and then enable all
> 3 remaining DPUs.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
>  1 file changed, 408 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> index 10b28d870f08..6dfc85eda354 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts

[skipped]


> @@ -709,6 +861,163 @@ keyboard@3a {
>  	};
>  };
>  
> +&i2c1 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x08>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK5>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr2_1p15>;
> +		vdd18-supply = <&vreg_rtmr2_1p8>;
> +		vdd33-supply = <&vreg_rtmr2_3p3>;
> +
> +		reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;
> +
> +		orientation-switch;
> +		retimer-switch;

Doesn't it need to listen to mode switching events? 4-lane DP vs
2/2-lane DP + USB3 requires propagating of the altmode events to the QMP
PHY, see the original 4-lane series.

> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				retimer_ss2_ss_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss2_ss_in>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				retimer_ss2_ss_in: endpoint {
> +					remote-endpoint = <&usb_1_ss2_qmpphy_out>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				retimer_ss2_con_sbu_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss2_con_sbu_in>;
> +				};
> +			};
> +		};
> +	};
> +};
> +


> @@ -1164,7 +1566,7 @@ &usb_1_ss0_dwc3_hs {
>  };
>  
>  &usb_1_ss0_qmpphy_out {
> -	remote-endpoint = <&pmic_glink_ss0_ss_in>;
> +	remote-endpoint = <&retimer_ss0_ss_in>;
>  };

orientation-switch and mode-switch for the QMP PHY?

>  
>  &usb_1_ss1_hsphy {
> @@ -1196,7 +1598,7 @@ &usb_1_ss1_dwc3_hs {
>  };
>  
>  &usb_1_ss1_qmpphy_out {
> -	remote-endpoint = <&pmic_glink_ss1_ss_in>;
> +	remote-endpoint = <&retimer_ss1_ss_in>;
>  };
>  
>  &usb_1_ss2_hsphy {
> @@ -1228,5 +1630,5 @@ &usb_1_ss2_dwc3_hs {
>  };
>  
>  &usb_1_ss2_qmpphy_out {
> -	remote-endpoint = <&pmic_glink_ss2_ss_in>;
> +	remote-endpoint = <&retimer_ss2_ss_in>;
>  };
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Konrad Dybcio]

On 2.09.2024 8:54 PM, Dmitry Baryshkov wrote:
> On Mon, Sep 02, 2024 at 06:01:35PM GMT, Abel Vesa wrote:
>> The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
>> all of them supporting external DP altmode. Between each QMP
>> combo PHY and the corresponding Type-C port, sits one Parade PS8830
>> retimer which handles both orientation and SBU muxing. Add nodes for
>> each retimer, fix the graphs between connectors and the PHYs accordingly,
>> add the voltage regulators needed by each retimer and then enable all
>> 3 remaining DPUs.
>>
>> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
>> ---

[...]

> 
>> @@ -1164,7 +1566,7 @@ &usb_1_ss0_dwc3_hs {
>>  };
>>  
>>  &usb_1_ss0_qmpphy_out {
>> -	remote-endpoint = <&pmic_glink_ss0_ss_in>;
>> +	remote-endpoint = <&retimer_ss0_ss_in>;
>>  };
> 
> orientation-switch

https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git/commit/?h=for-next&id=17c5909f53e01c151c91f66949a9c4f191756bae

> and mode-switch for the QMP PHY?

Oops! Looks like adding it and fixing some bugs in the qmpphy driver makes
usb+dp work every now and then..

Konrad

Re: [PATCH 2/2] arm64: dts: qcom: x1e80100-t14s: Add external DP support

[Johan Hovold]

On Mon, Sep 02, 2024 at 06:01:36PM +0300, Abel Vesa wrote:
> The Lenovo Thinkpad T14s has only 2 USB Type-C ports, both of them
> supporting external DP altmode. Between each QMP combo PHY and the
> corresponding Type-C port, sits one Parade PS8830 retimer which handles
> both orientation and SBU muxing. Add nodes for each retimer, fix the
> graphs between connectors and the PHYs accordingly add the voltage
> regulators needed by each retimer and then enable DP 0 and 1.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
>  .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts     | 278 ++++++++++++++++++++-
>  1 file changed, 274 insertions(+), 4 deletions(-)
 			};
> @@ -127,6 +143,90 @@ vreg_edp_3p3: regulator-edp-3p3 {
>  		regulator-boot-on;
>  	};
>  
> +	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {

Please consider spelling out "retimer". It seems it's mostly you that
use "rtmr" in the kernel currently, and not sure saving those three
chars is worth the cost in readability.

But if this is what these rails are called in the (CRD) schematics (I
didn't check), then just ignore this comment.

> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "VREG_RTMR0_1P15";
> +		regulator-min-microvolt = <1150000>;
> +		regulator-max-microvolt = <1150000>;
> +
> +		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		pinctrl-0 = <&rtmr0_1p15_reg_en>;
> +		pinctrl-names = "default";
> +	};

Please keep the nodes sorted by name (by moving the retimer nodes below
the nvme regulator.

>  	vreg_nvme: regulator-nvme {
>  		compatible = "regulator-fixed";
>  
> @@ -484,6 +584,111 @@ keyboard@3a {
>  	};
>  };
>  
> +&i2c3 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x08>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK3>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr0_1p15>;

As Konrad already pointed on the retimer patch, this one should be name
vdd115 or similar.

> +		vdd18-supply = <&vreg_rtmr0_1p8>;
> +		vdd33-supply = <&vreg_rtmr0_3p3>;

> +&i2c7 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x8>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK4>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr1_1p15>;
> +		vdd18-supply = <&vreg_rtmr1_1p8>;
> +		vdd33-supply = <&vreg_rtmr1_3p3>;
> +
> +		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
> +
> +		retimer-switch;
> +		orientation-switch;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				retimer_ss1_ss_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss1_ss_in>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				retimer_ss1_ss_in: endpoint {
> +					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				retimer_ss1_con_sbu_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
> +				};
> +			};
> +

Stray newline.

> +		};
> +	};
> +};

> +	rtmr1_3p3_reg_en: rtmr1-3p3-reg-en-state {
> +		pins = "gpio186";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +
> +

Stray newline.

>  	wcd_default: wcd-reset-n-active-state {
>  		pins = "gpio191";
>  		function = "gpio";

Johan

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Johan Hovold]

On Mon, Sep 02, 2024 at 06:01:35PM +0300, Abel Vesa wrote:
> The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> all of them supporting external DP altmode. Between each QMP
> combo PHY and the corresponding Type-C port, sits one Parade PS8830
> retimer which handles both orientation and SBU muxing. Add nodes for
> each retimer, fix the graphs between connectors and the PHYs accordingly,
> add the voltage regulators needed by each retimer and then enable all
> 3 remaining DPUs.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
>  1 file changed, 408 insertions(+), 6 deletions(-)

> @@ -288,6 +312,134 @@ vreg_edp_3p3: regulator-edp-3p3 {
>  		regulator-boot-on;
>  	};
>  
> +	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "VREG_RTMR0_1P15";
> +		regulator-min-microvolt = <1150000>;
> +		regulator-max-microvolt = <1150000>;
> +
> +		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		pinctrl-0 = <&rtmr0_1p15_reg_en>;
> +		pinctrl-names = "default";
> +	};

> +	vreg_rtmr2_3p3: regulator-rtmr2-3p3 {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "VREG_RTMR2_3P3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +
> +		gpio = <&tlmm 187 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&rtmr2_3p3_reg_en>;
> +	};
> +
> +
> +

Double stray newline.

Also move these nodes below the nvme one to maintain sort order.

>  	vreg_nvme: regulator-nvme {
>  		compatible = "regulator-fixed";
>  
> @@ -709,6 +861,163 @@ keyboard@3a {
>  	};
>  };

> +&i2c7 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x8>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK4>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr1_1p15>;
> +		vdd18-supply = <&vreg_rtmr1_1p8>;
> +		vdd33-supply = <&vreg_rtmr1_3p3>;
> +
> +		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
> +
> +		retimer-switch;
> +		orientation-switch;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				retimer_ss1_ss_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss1_ss_in>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				retimer_ss1_ss_in: endpoint {
> +					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +
> +				retimer_ss1_con_sbu_out: endpoint {
> +					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
> +				};
> +			};
> +

Stray newline.

> +		};
> +	};
> +};
 
> +&pm8550_gpios {
> +	rtmr0_3p3_reg_en: rtmr0-3p3-reg-en-state {
> +		pins = "gpio11";
> +		function = "func1";
> +		input-disable;
> +		output-enable;
> +	};
> +};
> +
> +&pm8550ve_8_gpios {
> +	rtmr0_1p15_reg_en: rtmr0-1p15-reg-en-state {
> +		pins = "gpio8";
> +		function = "func1";
> +		input-disable;
> +		output-enable;
> +	};
> +};
> +
> +&pm8550ve_9_gpios {
> +	rtmr0_1p8_reg_en: rtmr0-1p8-reg-en-state {
> +		pins = "gpio8";
> +		function = "func1";
> +		input-disable;
> +		output-enable;
> +	};
> +};

Shouldn't you specify the drive strength here as well? (Same on T14s).

Johan

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Abel Vesa]

On 24-09-03 09:09:52, Johan Hovold wrote:
> On Mon, Sep 02, 2024 at 06:01:35PM +0300, Abel Vesa wrote:
> > The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> > all of them supporting external DP altmode. Between each QMP
> > combo PHY and the corresponding Type-C port, sits one Parade PS8830
> > retimer which handles both orientation and SBU muxing. Add nodes for
> > each retimer, fix the graphs between connectors and the PHYs accordingly,
> > add the voltage regulators needed by each retimer and then enable all
> > 3 remaining DPUs.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> >  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
> >  1 file changed, 408 insertions(+), 6 deletions(-)
> 
> > @@ -288,6 +312,134 @@ vreg_edp_3p3: regulator-edp-3p3 {
> >  		regulator-boot-on;
> >  	};
> >  
> > +	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
> > +		compatible = "regulator-fixed";
> > +
> > +		regulator-name = "VREG_RTMR0_1P15";
> > +		regulator-min-microvolt = <1150000>;
> > +		regulator-max-microvolt = <1150000>;
> > +
> > +		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
> > +		enable-active-high;
> > +
> > +		pinctrl-0 = <&rtmr0_1p15_reg_en>;
> > +		pinctrl-names = "default";
> > +	};
> 
> > +	vreg_rtmr2_3p3: regulator-rtmr2-3p3 {
> > +		compatible = "regulator-fixed";
> > +
> > +		regulator-name = "VREG_RTMR2_3P3";
> > +		regulator-min-microvolt = <3300000>;
> > +		regulator-max-microvolt = <3300000>;
> > +
> > +		gpio = <&tlmm 187 GPIO_ACTIVE_HIGH>;
> > +		enable-active-high;
> > +
> > +		pinctrl-names = "default";
> > +		pinctrl-0 = <&rtmr2_3p3_reg_en>;
> > +	};
> > +
> > +
> > +
> 
> Double stray newline.
> 
> Also move these nodes below the nvme one to maintain sort order.
> 

Will do.

> >  	vreg_nvme: regulator-nvme {
> >  		compatible = "regulator-fixed";
> >  
> > @@ -709,6 +861,163 @@ keyboard@3a {
> >  	};
> >  };
> 
> > +&i2c7 {
> > +	clock-frequency = <400000>;
> > +
> > +	status = "okay";
> > +
> > +	typec-mux@8 {
> > +		compatible = "parade,ps8830";
> > +		reg = <0x8>;
> > +
> > +		clocks = <&rpmhcc RPMH_RF_CLK4>;
> > +		clock-names = "xo";
> > +
> > +		vdd15-supply = <&vreg_rtmr1_1p15>;
> > +		vdd18-supply = <&vreg_rtmr1_1p8>;
> > +		vdd33-supply = <&vreg_rtmr1_3p3>;
> > +
> > +		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
> > +
> > +		retimer-switch;
> > +		orientation-switch;
> > +
> > +		ports {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			port@0 {
> > +				reg = <0>;
> > +
> > +				retimer_ss1_ss_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss1_ss_in>;
> > +				};
> > +			};
> > +
> > +			port@1 {
> > +				reg = <1>;
> > +
> > +				retimer_ss1_ss_in: endpoint {
> > +					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
> > +				};
> > +			};
> > +
> > +			port@2 {
> > +				reg = <2>;
> > +
> > +				retimer_ss1_con_sbu_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
> > +				};
> > +			};
> > +
> 
> Stray newline.
> 

Will drop.

> > +		};
> > +	};
> > +};
>  
> > +&pm8550_gpios {
> > +	rtmr0_3p3_reg_en: rtmr0-3p3-reg-en-state {
> > +		pins = "gpio11";
> > +		function = "func1";
> > +		input-disable;
> > +		output-enable;
> > +	};
> > +};
> > +
> > +&pm8550ve_8_gpios {
> > +	rtmr0_1p15_reg_en: rtmr0-1p15-reg-en-state {
> > +		pins = "gpio8";
> > +		function = "func1";
> > +		input-disable;
> > +		output-enable;
> > +	};
> > +};
> > +
> > +&pm8550ve_9_gpios {
> > +	rtmr0_1p8_reg_en: rtmr0-1p8-reg-en-state {
> > +		pins = "gpio8";
> > +		function = "func1";
> > +		input-disable;
> > +		output-enable;
> > +	};
> > +};
> 
> Shouldn't you specify the drive strength here as well? (Same on T14s).
> 

Will do.

> Johan

Thanks for reviewing.

Abel

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Abel Vesa]

On 24-09-02 21:54:58, Dmitry Baryshkov wrote:
> On Mon, Sep 02, 2024 at 06:01:35PM GMT, Abel Vesa wrote:
> > The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> > all of them supporting external DP altmode. Between each QMP
> > combo PHY and the corresponding Type-C port, sits one Parade PS8830
> > retimer which handles both orientation and SBU muxing. Add nodes for
> > each retimer, fix the graphs between connectors and the PHYs accordingly,
> > add the voltage regulators needed by each retimer and then enable all
> > 3 remaining DPUs.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> >  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
> >  1 file changed, 408 insertions(+), 6 deletions(-)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > index 10b28d870f08..6dfc85eda354 100644
> > --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> 
> [skipped]
> 
> 
> > @@ -709,6 +861,163 @@ keyboard@3a {
> >  	};
> >  };
> >  
> > +&i2c1 {
> > +	clock-frequency = <400000>;
> > +
> > +	status = "okay";
> > +
> > +	typec-mux@8 {
> > +		compatible = "parade,ps8830";
> > +		reg = <0x08>;
> > +
> > +		clocks = <&rpmhcc RPMH_RF_CLK5>;
> > +		clock-names = "xo";
> > +
> > +		vdd15-supply = <&vreg_rtmr2_1p15>;
> > +		vdd18-supply = <&vreg_rtmr2_1p8>;
> > +		vdd33-supply = <&vreg_rtmr2_3p3>;
> > +
> > +		reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;
> > +
> > +		orientation-switch;
> > +		retimer-switch;
> 
> Doesn't it need to listen to mode switching events? 4-lane DP vs
> 2/2-lane DP + USB3 requires propagating of the altmode events to the QMP
> PHY, see the original 4-lane series.

The mode is passed through the retimer state as well, isn't it?

> 
> > +
> > +		ports {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			port@0 {
> > +				reg = <0>;
> > +
> > +				retimer_ss2_ss_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss2_ss_in>;
> > +				};
> > +			};
> > +
> > +			port@1 {
> > +				reg = <1>;
> > +
> > +				retimer_ss2_ss_in: endpoint {
> > +					remote-endpoint = <&usb_1_ss2_qmpphy_out>;
> > +				};
> > +			};
> > +
> > +			port@2 {
> > +				reg = <2>;
> > +
> > +				retimer_ss2_con_sbu_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss2_con_sbu_in>;
> > +				};
> > +			};
> > +		};
> > +	};
> > +};
> > +
> 
> 
> > @@ -1164,7 +1566,7 @@ &usb_1_ss0_dwc3_hs {
> >  };
> >  
> >  &usb_1_ss0_qmpphy_out {
> > -	remote-endpoint = <&pmic_glink_ss0_ss_in>;
> > +	remote-endpoint = <&retimer_ss0_ss_in>;
> >  };
> 
> orientation-switch and mode-switch for the QMP PHY?

orientation-switch is already in the SoC dtsi nodes.

But the qmp phy doesn't currently support mode switching. Right?

> 
> >  
> >  &usb_1_ss1_hsphy {
> > @@ -1196,7 +1598,7 @@ &usb_1_ss1_dwc3_hs {
> >  };
> >  
> >  &usb_1_ss1_qmpphy_out {
> > -	remote-endpoint = <&pmic_glink_ss1_ss_in>;
> > +	remote-endpoint = <&retimer_ss1_ss_in>;
> >  };
> >  
> >  &usb_1_ss2_hsphy {
> > @@ -1228,5 +1630,5 @@ &usb_1_ss2_dwc3_hs {
> >  };
> >  
> >  &usb_1_ss2_qmpphy_out {
> > -	remote-endpoint = <&pmic_glink_ss2_ss_in>;
> > +	remote-endpoint = <&retimer_ss2_ss_in>;
> >  };
> > 
> > -- 
> > 2.34.1
> > 
> 
> -- 
> With best wishes
> Dmitry

Thanks for reviewing.

Abel

Re: [PATCH 2/2] arm64: dts: qcom: x1e80100-t14s: Add external DP support

[Abel Vesa]

On 24-09-03 09:05:32, Johan Hovold wrote:
> On Mon, Sep 02, 2024 at 06:01:36PM +0300, Abel Vesa wrote:
> > The Lenovo Thinkpad T14s has only 2 USB Type-C ports, both of them
> > supporting external DP altmode. Between each QMP combo PHY and the
> > corresponding Type-C port, sits one Parade PS8830 retimer which handles
> > both orientation and SBU muxing. Add nodes for each retimer, fix the
> > graphs between connectors and the PHYs accordingly add the voltage
> > regulators needed by each retimer and then enable DP 0 and 1.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > ---
> >  .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts     | 278 ++++++++++++++++++++-
> >  1 file changed, 274 insertions(+), 4 deletions(-)
>  			};
> > @@ -127,6 +143,90 @@ vreg_edp_3p3: regulator-edp-3p3 {
> >  		regulator-boot-on;
> >  	};
> >  
> > +	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
> 
> Please consider spelling out "retimer". It seems it's mostly you that
> use "rtmr" in the kernel currently, and not sure saving those three
> chars is worth the cost in readability.
> 
> But if this is what these rails are called in the (CRD) schematics (I
> didn't check), then just ignore this comment.

According to schematics, they are called VREG_RTMRx_*. So will keep
that.

> 
> > +		compatible = "regulator-fixed";
> > +
> > +		regulator-name = "VREG_RTMR0_1P15";
> > +		regulator-min-microvolt = <1150000>;
> > +		regulator-max-microvolt = <1150000>;
> > +
> > +		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
> > +		enable-active-high;
> > +
> > +		pinctrl-0 = <&rtmr0_1p15_reg_en>;
> > +		pinctrl-names = "default";
> > +	};
> 
> Please keep the nodes sorted by name (by moving the retimer nodes below
> the nvme regulator.

Will do.

> 
> >  	vreg_nvme: regulator-nvme {
> >  		compatible = "regulator-fixed";
> >  
> > @@ -484,6 +584,111 @@ keyboard@3a {
> >  	};
> >  };
> >  
> > +&i2c3 {
> > +	clock-frequency = <400000>;
> > +
> > +	status = "okay";
> > +
> > +	typec-mux@8 {
> > +		compatible = "parade,ps8830";
> > +		reg = <0x08>;
> > +
> > +		clocks = <&rpmhcc RPMH_RF_CLK3>;
> > +		clock-names = "xo";
> > +
> > +		vdd15-supply = <&vreg_rtmr0_1p15>;
> 
> As Konrad already pointed on the retimer patch, this one should be name
> vdd115 or similar.

Yes. Will fix.

> 
> > +		vdd18-supply = <&vreg_rtmr0_1p8>;
> > +		vdd33-supply = <&vreg_rtmr0_3p3>;
> 
> > +&i2c7 {
> > +	clock-frequency = <400000>;
> > +
> > +	status = "okay";
> > +
> > +	typec-mux@8 {
> > +		compatible = "parade,ps8830";
> > +		reg = <0x8>;
> > +
> > +		clocks = <&rpmhcc RPMH_RF_CLK4>;
> > +		clock-names = "xo";
> > +
> > +		vdd15-supply = <&vreg_rtmr1_1p15>;
> > +		vdd18-supply = <&vreg_rtmr1_1p8>;
> > +		vdd33-supply = <&vreg_rtmr1_3p3>;
> > +
> > +		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;
> > +
> > +		retimer-switch;
> > +		orientation-switch;
> > +
> > +		ports {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			port@0 {
> > +				reg = <0>;
> > +
> > +				retimer_ss1_ss_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss1_ss_in>;
> > +				};
> > +			};
> > +
> > +			port@1 {
> > +				reg = <1>;
> > +
> > +				retimer_ss1_ss_in: endpoint {
> > +					remote-endpoint = <&usb_1_ss1_qmpphy_out>;
> > +				};
> > +			};
> > +
> > +			port@2 {
> > +				reg = <2>;
> > +
> > +				retimer_ss1_con_sbu_out: endpoint {
> > +					remote-endpoint = <&pmic_glink_ss1_con_sbu_in>;
> > +				};
> > +			};
> > +
> 
> Stray newline.

Will drop.

> 
> > +		};
> > +	};
> > +};
> 
> > +	rtmr1_3p3_reg_en: rtmr1-3p3-reg-en-state {
> > +		pins = "gpio186";
> > +		function = "gpio";
> > +		drive-strength = <2>;
> > +		bias-disable;
> > +	};
> > +
> > +
> 
> Stray newline.

Will drop.

> 
> >  	wcd_default: wcd-reset-n-active-state {
> >  		pins = "gpio191";
> >  		function = "gpio";
> 
> Johan

Thanks for reviewing.

Abel

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Dmitry Baryshkov]

On Tue, 24 Sept 2024 at 13:08, Abel Vesa <abel.vesa@linaro.org> wrote:
>
> On 24-09-02 21:54:58, Dmitry Baryshkov wrote:
> > On Mon, Sep 02, 2024 at 06:01:35PM GMT, Abel Vesa wrote:
> > > The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> > > all of them supporting external DP altmode. Between each QMP
> > > combo PHY and the corresponding Type-C port, sits one Parade PS8830
> > > retimer which handles both orientation and SBU muxing. Add nodes for
> > > each retimer, fix the graphs between connectors and the PHYs accordingly,
> > > add the voltage regulators needed by each retimer and then enable all
> > > 3 remaining DPUs.
> > >
> > > Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> > > ---
> > >  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 414 +++++++++++++++++++++++++++++-
> > >  1 file changed, 408 insertions(+), 6 deletions(-)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > > index 10b28d870f08..6dfc85eda354 100644
> > > --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > > +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> >
> > [skipped]
> >
> >
> > > @@ -709,6 +861,163 @@ keyboard@3a {
> > >     };
> > >  };
> > >
> > > +&i2c1 {
> > > +   clock-frequency = <400000>;
> > > +
> > > +   status = "okay";
> > > +
> > > +   typec-mux@8 {
> > > +           compatible = "parade,ps8830";
> > > +           reg = <0x08>;
> > > +
> > > +           clocks = <&rpmhcc RPMH_RF_CLK5>;
> > > +           clock-names = "xo";
> > > +
> > > +           vdd15-supply = <&vreg_rtmr2_1p15>;
> > > +           vdd18-supply = <&vreg_rtmr2_1p8>;
> > > +           vdd33-supply = <&vreg_rtmr2_3p3>;
> > > +
> > > +           reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;
> > > +
> > > +           orientation-switch;
> > > +           retimer-switch;
> >
> > Doesn't it need to listen to mode switching events? 4-lane DP vs
> > 2/2-lane DP + USB3 requires propagating of the altmode events to the QMP
> > PHY, see the original 4-lane series.
>
> The mode is passed through the retimer state as well, isn't it?

ack.

>
> >
> > > +
> > > +           ports {
> > > +                   #address-cells = <1>;
> > > +                   #size-cells = <0>;
> > > +
> > > +                   port@0 {
> > > +                           reg = <0>;
> > > +
> > > +                           retimer_ss2_ss_out: endpoint {
> > > +                                   remote-endpoint = <&pmic_glink_ss2_ss_in>;
> > > +                           };
> > > +                   };
> > > +
> > > +                   port@1 {
> > > +                           reg = <1>;
> > > +
> > > +                           retimer_ss2_ss_in: endpoint {
> > > +                                   remote-endpoint = <&usb_1_ss2_qmpphy_out>;
> > > +                           };
> > > +                   };
> > > +
> > > +                   port@2 {
> > > +                           reg = <2>;
> > > +
> > > +                           retimer_ss2_con_sbu_out: endpoint {
> > > +                                   remote-endpoint = <&pmic_glink_ss2_con_sbu_in>;
> > > +                           };
> > > +                   };
> > > +           };
> > > +   };
> > > +};
> > > +
> >
> >
> > > @@ -1164,7 +1566,7 @@ &usb_1_ss0_dwc3_hs {
> > >  };
> > >
> > >  &usb_1_ss0_qmpphy_out {
> > > -   remote-endpoint = <&pmic_glink_ss0_ss_in>;
> > > +   remote-endpoint = <&retimer_ss0_ss_in>;
> > >  };
> >
> > orientation-switch and mode-switch for the QMP PHY?
>
> orientation-switch is already in the SoC dtsi nodes.
>
> But the qmp phy doesn't currently support mode switching. Right?

Yeah, we didn't land that patchset :-(

>
> >
> > >
> > >  &usb_1_ss1_hsphy {
> > > @@ -1196,7 +1598,7 @@ &usb_1_ss1_dwc3_hs {
> > >  };
> > >
> > >  &usb_1_ss1_qmpphy_out {
> > > -   remote-endpoint = <&pmic_glink_ss1_ss_in>;
> > > +   remote-endpoint = <&retimer_ss1_ss_in>;
> > >  };
> > >
> > >  &usb_1_ss2_hsphy {
> > > @@ -1228,5 +1630,5 @@ &usb_1_ss2_dwc3_hs {
> > >  };
> > >
> > >  &usb_1_ss2_qmpphy_out {
> > > -   remote-endpoint = <&pmic_glink_ss2_ss_in>;
> > > +   remote-endpoint = <&retimer_ss2_ss_in>;
> > >  };
> > >
> > > --
> > > 2.34.1
> > >
> >
> > --
> > With best wishes
> > Dmitry
>
> Thanks for reviewing.
>
> Abel



-- 
With best wishes
Dmitry

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Johan Hovold]

On Mon, Sep 02, 2024 at 06:01:35PM +0300, Abel Vesa wrote:
> The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> all of them supporting external DP altmode. Between each QMP
> combo PHY and the corresponding Type-C port, sits one Parade PS8830
> retimer which handles both orientation and SBU muxing. Add nodes for
> each retimer, fix the graphs between connectors and the PHYs accordingly,
> add the voltage regulators needed by each retimer and then enable all
> 3 remaining DPUs.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
 
> +	vreg_rtmr0_1p15: regulator-rtmr0-1p15 {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "VREG_RTMR0_1P15";
> +		regulator-min-microvolt = <1150000>;
> +		regulator-max-microvolt = <1150000>;
> +
> +		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;

When reviewing the schematics yesterday, I noticed that this is wrong
and that this enable GPIO comes from pmc8380_5_gpios.

Fortunately the above gpio is unused, but please double check the other
as well (I think the rest are correct).

You need to fix the pincfg as well.

> +		enable-active-high;
> +
> +		pinctrl-0 = <&rtmr0_1p15_reg_en>;

Please rename the enable pins according to the schematics too (e.g.
"usb0_pwr_1p15_en").

> +		pinctrl-names = "default";
> +	};

> +&i2c1 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x08>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK5>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr2_1p15>;
> +		vdd18-supply = <&vreg_rtmr2_1p8>;
> +		vdd33-supply = <&vreg_rtmr2_3p3>;
> +
> +		reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;

As I mentioned elsewhere, the reset lines are active low.

> +&pm8550_gpios {
> +	rtmr0_3p3_reg_en: rtmr0-3p3-reg-en-state {
> +		pins = "gpio11";
> +		function = "func1";

And this should be "normal" for gpio function, right? Same below.

> +		input-disable;
> +		output-enable;

And I don't think you need to provide these.

> +	};
> +};

Johan

Re: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Enable external DP support

[Johan Hovold]

On Mon, Sep 02, 2024 at 06:01:35PM +0300, Abel Vesa wrote:
> The Qualcomm Snapdragon X Elite CRD board has 3 USB Type-C ports,
> all of them supporting external DP altmode. Between each QMP
> combo PHY and the corresponding Type-C port, sits one Parade PS8830
> retimer which handles both orientation and SBU muxing. Add nodes for
> each retimer, fix the graphs between connectors and the PHYs accordingly,
> add the voltage regulators needed by each retimer and then enable all
> 3 remaining DPUs.

> +&i2c1 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x08>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK5>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr2_1p15>;
> +		vdd18-supply = <&vreg_rtmr2_1p8>;
> +		vdd33-supply = <&vreg_rtmr2_3p3>;
> +
> +		reset-gpios = <&tlmm 185 GPIO_ACTIVE_HIGH>;

pincfg missing

> +&i2c3 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x08>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK3>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr0_1p15>;
> +		vdd18-supply = <&vreg_rtmr0_1p8>;
> +		vdd33-supply = <&vreg_rtmr0_3p3>;
> +
> +		reset-gpios = <&pm8550_gpios 10 GPIO_ACTIVE_HIGH>;

Same here.

> +&i2c7 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	typec-mux@8 {
> +		compatible = "parade,ps8830";
> +		reg = <0x8>;
> +
> +		clocks = <&rpmhcc RPMH_RF_CLK4>;
> +		clock-names = "xo";
> +
> +		vdd15-supply = <&vreg_rtmr1_1p15>;
> +		vdd18-supply = <&vreg_rtmr1_1p8>;
> +		vdd33-supply = <&vreg_rtmr1_3p3>;
> +
> +		reset-gpios = <&tlmm 176 GPIO_ACTIVE_HIGH>;

And here.

Johan