[PATCH v2 0/3] Enable secondary USB controller in OTG mode

[PATCH v2 0/3] Enable secondary USB controller in OTG mode

[Swati Agarwal]

Enable secondary USB controller in OTG mode on monaco EVK platform.

Changes in v2:
Separate patches for Monaco and Monaco-evk.
Minor formatting changes.

Link to v1:
https://lore.kernel.org/all/20260210155329.3044455-1-swati.agarwal@oss.qualcomm.com/

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

 arch/arm64/boot/dts/qcom/monaco-evk.dts | 131 ++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/monaco.dtsi    |   7 ++
 2 files changed, 138 insertions(+)

-- 
2.34.1

[PATCH v2 1/3] arm64: dts: qcom: monaco-evk: Enable GPIO expander interrupt for Monaco EVK

[Swati Agarwal]

Enable PCA9538 expander as interrupt controller on Monaco 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>
---
 arch/arm64/boot/dts/qcom/monaco-evk.dts | 77 +++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 565418b86b2a..03af9bbcacc9 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -362,6 +362,11 @@ expander0: gpio@38 {
 		reg = <0x38>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 56 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander0_int>;
+		pinctrl-names = "default";
 	};
 
 	expander1: gpio@39 {
@@ -369,6 +374,11 @@ expander1: gpio@39 {
 		reg = <0x39>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 16 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander1_int>;
+		pinctrl-names = "default";
 	};
 
 	expander2: gpio@3a {
@@ -376,6 +386,11 @@ expander2: gpio@3a {
 		reg = <0x3a>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 95 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander2_int>;
+		pinctrl-names = "default";
 	};
 
 	expander3: gpio@3b {
@@ -383,6 +398,11 @@ expander3: gpio@3b {
 		reg = <0x3b>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 24 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander3_int>;
+		pinctrl-names = "default";
 	};
 
 	expander4: gpio@3c {
@@ -390,6 +410,11 @@ expander4: gpio@3c {
 		reg = <0x3c>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 96 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander4_int>;
+		pinctrl-names = "default";
 	};
 
 	expander5: gpio@3d {
@@ -397,6 +422,11 @@ expander5: gpio@3d {
 		reg = <0x3d>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 3 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander5_int>;
+		pinctrl-names = "default";
 	};
 
 	expander6: gpio@3e {
@@ -404,6 +434,11 @@ expander6: gpio@3e {
 		reg = <0x3e>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 52 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander6_int>;
+		pinctrl-names = "default";
 	};
 };
 
@@ -495,6 +530,48 @@ tpm@0 {
 
 &tlmm {
 
+	expander0_int: expander0-int-state {
+		pins = "gpio56";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander1_int: expander1-int-state {
+		pins = "gpio16";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander2_int: expander2-int-state {
+		pins = "gpio95";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander3_int: expander3-int-state {
+		pins = "gpio24";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander4_int: expander4-int-state {
+		pins = "gpio96";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander5_int: expander5-int-state {
+		pins = "gpio3";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander6_int:  expander6-int-state {
+		pins = "gpio52";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	pcie0_default_state: pcie0-default-state {
 		wake-pins {
 			pins = "gpio0";
-- 
2.34.1

[PATCH v2 2/3] arm64: dts: qcom: monaco: Add role-switch support and HS endpoint for secondary USB controller

[Swati Agarwal]

Enable usb-role-switch for the secondary HS USB controller on Monaco.

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/monaco.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/monaco.dtsi b/arch/arm64/boot/dts/qcom/monaco.dtsi
index 5d2df4305d1c..59dfacbae4f6 100644
--- a/arch/arm64/boot/dts/qcom/monaco.dtsi
+++ b/arch/arm64/boot/dts/qcom/monaco.dtsi
@@ -5232,7 +5232,14 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 			qcom,select-utmi-as-pipe-clk;
 			wakeup-source;
 
+			usb-role-switch;
+
 			status = "disabled";
+
+			port {
+				usb_2_dwc3_hs: endpoint {
+				};
+			};
 		};
 
 		iris: video-codec@aa00000 {
-- 
2.34.1

[PATCH v2 3/3] arm64: dts: qcom: monaco-evk: Enable the secondary USB controller

[Swati Agarwal]

Enable the secondary USB controller connected to micro usb port in OTG mode
on Monaco EVK platform.

Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/monaco-evk.dts | 54 +++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 03af9bbcacc9..bc75bdd1281b 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -27,6 +27,25 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	connector-2 {
+		compatible = "gpio-usb-b-connector", "usb-b-connector";
+		label = "micro-USB";
+		type = "micro";
+
+		id-gpios = <&pmm8620au_0_gpios 9 GPIO_ACTIVE_HIGH>;
+		vbus-gpios = <&expander6 7 GPIO_ACTIVE_HIGH>;
+		vbus-supply = <&usb2_vbus>;
+
+		pinctrl-0 = <&usb2_id>;
+		pinctrl-names = "default";
+
+		port {
+			usb2_con_hs_ep: endpoint {
+				remote-endpoint = <&usb_2_dwc3_hs>;
+			};
+		};
+	};
+
 	dmic: audio-codec-0 {
 		compatible = "dmic-codec";
 		#sound-dai-cells = <0>;
@@ -77,6 +96,15 @@ platform {
 			};
 		};
 	};
+
+	usb2_vbus: regulator-usb2-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb2_vbus";
+		gpio = <&pmm8650au_1_gpios 7 GPIO_ACTIVE_HIGH>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		enable-active-high;
+	};
 };
 
 &apps_rsc {
@@ -484,6 +512,16 @@ &pcieport1 {
 	wake-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
 };
 
+&pmm8620au_0_gpios {
+	usb2_id: usb2-id-state {
+		pins = "gpio9";
+		function = "normal";
+		input-enable;
+		bias-pull-up;
+		power-source = <0>;
+	};
+};
+
 &qupv3_id_0 {
 	firmware-name = "qcom/qcs8300/qupv3fw.elf";
 	status = "okay";
@@ -690,3 +728,19 @@ &usb_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_l7c>;
+	vdda33-supply = <&vreg_l9a>;
+
+	status = "okay";
+};
-- 
2.34.1

Re: [PATCH v2 1/3] arm64: dts: qcom: monaco-evk: Enable GPIO expander interrupt for Monaco EVK

[Konrad Dybcio]

On 3/3/26 9:21 AM, Swati Agarwal wrote:
> Enable PCA9538 expander as interrupt controller on Monaco 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>
> ---

[...]

>  &tlmm {
>  
> +
Stray \n above

	expander0_int: expander0-int-state {
> +		pins = "gpio56";

The TLMM entries are currently ordered by the pin index - please retain
that.

Otherwise, this looks good

Konrad

Re: [PATCH v2 2/3] arm64: dts: qcom: monaco: Add role-switch support and HS endpoint for secondary USB controller

[Konrad Dybcio]

On 3/3/26 9:21 AM, Swati Agarwal wrote:
> Enable usb-role-switch for the secondary HS USB controller on Monaco.
> 
> 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 v2 3/3] arm64: dts: qcom: monaco-evk: Enable the secondary USB controller

[Konrad Dybcio]

On 3/3/26 9:21 AM, Swati Agarwal wrote:
> Enable the secondary USB controller connected to micro usb port in OTG mode
> on Monaco EVK platform.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---

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

Konrad

Re: [PATCH v2 2/3] arm64: dts: qcom: monaco: Add role-switch support and HS endpoint for secondary USB controller

[Dmitry Baryshkov]

On Tue, Mar 03, 2026 at 01:51:56PM +0530, Swati Agarwal wrote:
> Enable usb-role-switch for the secondary HS USB controller on Monaco.
> 
> 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/monaco.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

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


-- 
With best wishes
Dmitry

Re: [PATCH v2 3/3] arm64: dts: qcom: monaco-evk: Enable the secondary USB controller

[Dmitry Baryshkov]

On Tue, Mar 03, 2026 at 01:51:57PM +0530, Swati Agarwal wrote:
> Enable the secondary USB controller connected to micro usb port in OTG mode
> on Monaco EVK platform.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/monaco-evk.dts | 54 +++++++++++++++++++++++++
>  1 file changed, 54 insertions(+)
> 

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


-- 
With best wishes
Dmitry

Re: [PATCH v2 1/3] arm64: dts: qcom: monaco-evk: Enable GPIO expander interrupt for Monaco EVK

[Swati Agarwal]

On Tue, Mar 3, 2026 at 3:29 PM Konrad Dybcio
<konrad.dybcio@oss.qualcomm.com> wrote:
>
> On 3/3/26 9:21 AM, Swati Agarwal wrote:
> > Enable PCA9538 expander as interrupt controller on Monaco 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>
> > ---
>
> [...]
>
> >  &tlmm {
> >
> > +
> Stray \n above
>
>         expander0_int: expander0-int-state {
> > +             pins = "gpio56";
>
> The TLMM entries are currently ordered by the pin index - please retain
> that.
Hi Konrad,
Do you want me to sort expander_int as per pin number and not as per
expander0_int and expander1_int.
For eg:- expander5-int-state(gpio3) followed by expander1_int(gpio16).

Regards,
Swati
>
> Otherwise, this looks good
>
> Konrad

Re: [PATCH v2 0/3] Enable secondary USB controller in OTG mode

[Bjorn Andersson]

On Tue, 03 Mar 2026 13:51:54 +0530, Swati Agarwal wrote:
> Enable secondary USB controller in OTG mode on monaco EVK platform.
> 
> Changes in v2:
> Separate patches for Monaco and Monaco-evk.
> Minor formatting changes.
> 
> Link to v1:
> https://lore.kernel.org/all/20260210155329.3044455-1-swati.agarwal@oss.qualcomm.com/
> 
> [...]

Applied, thanks!

[1/3] arm64: dts: qcom: monaco-evk: Enable GPIO expander interrupt for Monaco EVK
      commit: d99862e7103986b98ed0b79e3527af0e7bc516ef
[2/3] arm64: dts: qcom: monaco: Add role-switch support and HS endpoint for secondary USB controller
      commit: d2b1f221088d3ba1c365ea9af1e7ebe20c34a3a5
[3/3] arm64: dts: qcom: monaco-evk: Enable the secondary USB controller
      commit: 8eb46e0a7a1074342b3aab75a48783cd488f56e1

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>