[PATCH v3 0/3] Enable tertiary USB controller in OTG mode

[PATCH v3 0/3] Enable tertiary USB controller in OTG mode

[Swati Agarwal]

Enable tertiary USB controller in OTG mode on lemans EVK platform.

Changes in v3:
Separate patches for lemans and lemans-evk.
Minor formatting changes.

Changes in v2:
Added interrupts for all expanders.
Minor formatting changes.

Link to v2:
https://lore.kernel.org/all/20260210125348.2800846-1-swati.agarwal@oss.qualcomm.com/

Link to v1:
https://lore.kernel.org/all/20260206104642.1038381-1-swati.agarwal@oss.qualcomm.com/

Swati Agarwal (3):
  arm64: dts: qcom: lemans-evk: Enable GPIO expander interrupt for
    Lemans EVK
  arm64: dts: qcom: lemans: Add role-switch support and HS endpoint for
    tertiary USB controller
  arm64: dts: qcom: lemans-evk: Enable the tertiary USB controller

 arch/arm64/boot/dts/qcom/lemans-evk.dts | 96 +++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/lemans.dtsi    |  7 ++
 2 files changed, 103 insertions(+)

-- 
2.34.1

[PATCH v3 1/3] arm64: dts: qcom: lemans-evk: Enable GPIO expander interrupt for Lemans EVK

[Swati Agarwal]

Enable PCA9538 expander as interrupt controller on Lemans EVK and configure
the corresponding TLMM pins via pinctrl to operate as GPIO inputs with
internal pull-ups.

Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 44 +++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 90fce947ca7e..397052394930 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -546,6 +546,11 @@ expander0: gpio@38 {
 		reg = <0x38>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 138 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander0_int>;
+		pinctrl-names = "default";
 	};
 
 	expander1: gpio@39 {
@@ -553,6 +558,11 @@ expander1: gpio@39 {
 		reg = <0x39>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 19 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander1_int>;
+		pinctrl-names = "default";
 	};
 
 	expander2: gpio@3a {
@@ -560,6 +570,11 @@ expander2: gpio@3a {
 		reg = <0x3a>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 139 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander2_int>;
+		pinctrl-names = "default";
 	};
 
 	expander3: gpio@3b {
@@ -567,6 +582,11 @@ expander3: gpio@3b {
 		reg = <0x3b>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 39 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander3_int>;
+		pinctrl-names = "default";
 	};
 
 	eeprom@50 {
@@ -804,6 +824,30 @@ ethernet0_mdio: ethernet0-mdio-pins {
 		};
 	};
 
+	expander0_int: expander0-int-state {
+		pins = "gpio138";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander1_int: expander1-int-state {
+		pins = "gpio19";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander2_int: expander2-int-state {
+		pins = "gpio139";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander3_int: expander3-int-state {
+		pins = "gpio39";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	pcie0_default_state: pcie0-default-state {
 		clkreq-pins {
 			pins = "gpio1";
-- 
2.34.1

[PATCH v3 2/3] arm64: dts: qcom: lemans: Add role-switch support and HS endpoint for tertiary USB controller

[Swati Agarwal]

Enable usb-role-switch for the tertiary USB controller on Lemans.

Additionally, add a port node with an HS endpoint so the controller can be
linked through the DT graph to the corresponding connector.

Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 808827b83553..d0e63336be6b 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -4270,7 +4270,14 @@ usb_2: usb@a400000 {
 			snps,dis-u1-entry-quirk;
 			snps,dis-u2-entry-quirk;
 
+			usb-role-switch;
+
 			status = "disabled";
+
+			port {
+				usb_2_dwc3_hs: endpoint {
+				};
+			};
 		};
 
 		tcsr_mutex: hwlock@1f40000 {
-- 
2.34.1

Re: [PATCH v3 2/3] arm64: dts: qcom: lemans: Add role-switch support and HS endpoint for tertiary USB controller

[Konrad Dybcio]

On 2/25/26 10:31 AM, Swati Agarwal wrote:
> Enable usb-role-switch for the tertiary USB controller on Lemans.
> 
> Additionally, add a port node with an HS endpoint so the controller can be
> linked through the DT graph to the corresponding connector.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v3 2/3] arm64: dts: qcom: lemans: Add role-switch support and HS endpoint for tertiary USB controller

[Dmitry Baryshkov]

On Wed, Feb 25, 2026 at 03:01:54PM +0530, Swati Agarwal wrote:
> Enable usb-role-switch for the tertiary USB controller on Lemans.
> 
> Additionally, add a port node with an HS endpoint so the controller can be
> linked through the DT graph to the corresponding connector.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

[PATCH v3 3/3] arm64: dts: qcom: lemans-evk: Enable the tertiary USB controller

[Swati Agarwal]

Enable the tertiary usb controller connected to micro usb port in OTG mode
on Lemans EVK platform.

Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 52 +++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 397052394930..9e1e8b6f13dc 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -68,6 +68,25 @@ usb0_con_ss_ep: endpoint {
 		};
 	};
 
+	connector-2 {
+		compatible = "gpio-usb-b-connector", "usb-b-connector";
+		label = "micro-USB";
+		type = "micro";
+
+		id-gpios = <&pmm8654au_2_gpios 11 GPIO_ACTIVE_HIGH>;
+		vbus-gpios = <&expander3 3 GPIO_ACTIVE_HIGH>;
+		vbus-supply = <&vbus_supply_regulator_2>;
+
+		pinctrl-0 = <&usb2_id>;
+		pinctrl-names = "default";
+
+		port {
+			usb2_con_hs_ep: endpoint {
+				remote-endpoint = <&usb_2_dwc3_hs>;
+			};
+		};
+	};
+
 	edp0-connector {
 		compatible = "dp-connector";
 		label = "EDP0";
@@ -141,6 +160,15 @@ vbus_supply_regulator_0: regulator-vbus-supply-0 {
 		enable-active-high;
 	};
 
+	vbus_supply_regulator_2: vbus-supply-regulator-2 {
+		compatible = "regulator-fixed";
+		regulator-name = "USB2_VBUS";
+		gpio = <&pmm8654au_1_gpios 9 GPIO_ACTIVE_HIGH>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		enable-active-high;
+	};
+
 	vmmc_sdc: regulator-vmmc-sdc {
 		compatible = "regulator-fixed";
 
@@ -719,6 +747,14 @@ usb0_intr_state: usb0-intr-state {
 		bias-pull-up;
 		power-source = <0>;
 	};
+
+	usb2_id: usb2-id-state {
+		pins = "gpio11";
+		function = "normal";
+		input-enable;
+		bias-pull-up;
+		power-source = <0>;
+	};
 };
 
 &qup_i2c19_default {
@@ -966,6 +1002,22 @@ &usb_0_qmpphy {
 	status = "okay";
 };
 
+&usb_2 {
+	status = "okay";
+};
+
+&usb_2_dwc3_hs {
+	remote-endpoint = <&usb2_con_hs_ep>;
+};
+
+&usb_2_hsphy {
+	vdda-pll-supply = <&vreg_l7a>;
+	vdda18-supply = <&vreg_l6c>;
+	vdda33-supply = <&vreg_l9a>;
+
+	status = "okay";
+};
+
 &xo_board_clk {
 	clock-frequency = <38400000>;
 };
-- 
2.34.1

Re: [PATCH v3 3/3] arm64: dts: qcom: lemans-evk: Enable the tertiary USB controller

[Konrad Dybcio]

On 2/25/26 10:31 AM, Swati Agarwal wrote:
> Enable the tertiary usb controller connected to micro usb port in OTG mode
> on Lemans EVK platform.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v3 3/3] arm64: dts: qcom: lemans-evk: Enable the tertiary USB controller

[Dmitry Baryshkov]

On Wed, Feb 25, 2026 at 03:01:55PM +0530, Swati Agarwal wrote:
> Enable the tertiary usb controller connected to micro usb port in OTG mode
> on Lemans EVK platform.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans-evk.dts | 52 +++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
> 
> @@ -141,6 +160,15 @@ vbus_supply_regulator_0: regulator-vbus-supply-0 {
>  		enable-active-high;
>  	};
>  
> +	vbus_supply_regulator_2: vbus-supply-regulator-2 {

The regulator nodes in this file are named regulator-foo. Why are you
deviating from that?

> +		compatible = "regulator-fixed";
> +		regulator-name = "USB2_VBUS";
> +		gpio = <&pmm8654au_1_gpios 9 GPIO_ACTIVE_HIGH>;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		enable-active-high;
> +	};
> +
>  	vmmc_sdc: regulator-vmmc-sdc {
>  		compatible = "regulator-fixed";
>  

-- 
With best wishes
Dmitry