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[PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB2 controller Micro-USB OTG

Akash Kumar posted 1 patch 1 month, 2 weeks ago
There is a newer version of this series
arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 68 ++++++++++++++++++++
1 file changed, 68 insertions(+)
[PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB2 controller Micro-USB OTG
Posted by Akash Kumar 1 month, 2 weeks ago 
Enable the secondary USB controller (USB2) and its High-Speed PHY to
support OTG functionality via a Micro-USB connector.

Define a dedicated 'usb2-connector' node using the 'gpio-usb-b-connector'
compatible to handle ID and VBUS detection. Link this connector to the
DWC3 controller via OF graph ports to satisfy schema requirements and
enable role switching.

Specific hardware configuration:
- ID pin: TLMM 61
- VBUS detection: PM7325 GPIO 9
- VBUS supply: Fixed regulator controlled by TLMM 63
- Configure &usb_2 in OTG mode with role switching enabled.
- Define a gpio-usb-b-connector node for Micro-USB support, mapping the
  ID pin to TLMM 61 and VBUS detection to PM7325 GPIO 9.
- Add the 'vdd_micro_usb_vbus' fixed regulator (controlled by TLMM 63) to
  supply VBUS to the connector.
- Add the 'usb2_id_detect' pinctrl state to configure GPIO 61 for ID
  detection.
- Enable &usb_2_hsphy and populate necessary voltage supplies (VDDA PLL,
  VDDA 1.8V, VDDA 3.3V).

Signed-off-by: Akash Kumar <akash.kumar@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 68 ++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index f29a352b0288..ee472d8b2db1 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -217,6 +217,16 @@ pmic_glink_sbu_in: endpoint {
 		};
 	};
 
+	vdd_micro_usb_vbus: regulator-micro-usb-vbus {
+	       compatible = "regulator-fixed";
+	       regulator-name = "MICRO_USB_VBUS";
+	       gpio = <&tlmm 63 GPIO_ACTIVE_HIGH>;
+	       regulator-min-microvolt = <5000000>;
+	       regulator-max-microvolt = <5000000>;
+	       regulator-boot-on;
+	       enable-active-high;
+	};
+
 	vph_pwr: regulator-vph-pwr {
 		compatible = "regulator-fixed";
 		regulator-name = "vph_pwr";
@@ -262,6 +272,30 @@ active-config0 {
 		};
 	};
 
+	usb2-connector {
+		compatible = "gpio-usb-b-connector",
+			     "usb-b-connector";
+		label = "micro-USB";
+		type = "micro";
+		id-gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
+		vbus-gpios = <&pm7325_gpios 9 GPIO_ACTIVE_HIGH>;
+		vbus-supply = <&vdd_micro_usb_vbus>;
+		pinctrl-0 = <&usb2_id_detect>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				usb2_connector_ep: endpoint {
+					remote-endpoint = <&usb2_controller_ep>;
+				};
+			};
+		};
+	};
+
 	wcn6750-pmu {
 		compatible = "qcom,wcn6750-pmu";
 		pinctrl-0 = <&bt_en>;
@@ -606,6 +640,7 @@ vreg_bob_3p296: bob {
 			regulator-max-microvolt = <3960000>;
 		};
 	};
+
 };
 
 &gcc {
@@ -1137,6 +1172,12 @@ qup_uart7_sleep_tx: qup-uart7-sleep-tx-state {
 		 */
 		bias-pull-up;
 	};
+
+	usb2_id_detect: usb2-id-detect-state {
+		pins = "gpio61";
+		function = "gpio";
+		bias-pull-up;
+	};
 };
 
 &uart5 {
@@ -1200,6 +1241,33 @@ &usb_1_qmpphy {
 	status = "okay";
 };
 
+&usb_2 {
+	dr_mode = "otg";
+	usb-role-switch;
+
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			usb2_controller_ep: endpoint {
+				remote-endpoint = <&usb2_connector_ep>;
+			};
+		};
+	};
+};
+
+&usb_2_hsphy {
+	vdda-pll-supply = <&vreg_l10c_0p88>;
+	vdda18-supply = <&vreg_l1c_1p8>;
+	vdda33-supply = <&vreg_l2b_3p072>;
+
+	status = "okay";
+};
+
 &usb_dp_qmpphy_out {
 	remote-endpoint = <&redriver_phy_con_ss>;
 };
-- 
2.43.0
Re: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB2 controller Micro-USB OTG
Posted by Dmitry Baryshkov 1 month, 2 weeks ago 
On Tue, Feb 10, 2026 at 08:09:26PM +0530, Akash Kumar wrote:
> Enable the secondary USB controller (USB2) and its High-Speed PHY to
> support OTG functionality via a Micro-USB connector.
> 
> Define a dedicated 'usb2-connector' node using the 'gpio-usb-b-connector'
> compatible to handle ID and VBUS detection. Link this connector to the
> DWC3 controller via OF graph ports to satisfy schema requirements and
> enable role switching.
> 
> Specific hardware configuration:
> - ID pin: TLMM 61
> - VBUS detection: PM7325 GPIO 9
> - VBUS supply: Fixed regulator controlled by TLMM 63
> - Configure &usb_2 in OTG mode with role switching enabled.
> - Define a gpio-usb-b-connector node for Micro-USB support, mapping the
>   ID pin to TLMM 61 and VBUS detection to PM7325 GPIO 9.
> - Add the 'vdd_micro_usb_vbus' fixed regulator (controlled by TLMM 63) to
>   supply VBUS to the connector.
> - Add the 'usb2_id_detect' pinctrl state to configure GPIO 61 for ID
>   detection.
> - Enable &usb_2_hsphy and populate necessary voltage supplies (VDDA PLL,
>   VDDA 1.8V, VDDA 3.3V).
> 
> Signed-off-by: Akash Kumar <akash.kumar@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 68 ++++++++++++++++++++
>  1 file changed, 68 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index f29a352b0288..ee472d8b2db1 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -217,6 +217,16 @@ pmic_glink_sbu_in: endpoint {
>  		};
>  	};
>  
> +	vdd_micro_usb_vbus: regulator-micro-usb-vbus {
> +	       compatible = "regulator-fixed";
> +	       regulator-name = "MICRO_USB_VBUS";
> +	       gpio = <&tlmm 63 GPIO_ACTIVE_HIGH>;
> +	       regulator-min-microvolt = <5000000>;
> +	       regulator-max-microvolt = <5000000>;
> +	       regulator-boot-on;
> +	       enable-active-high;
> +	};
> +
>  	vph_pwr: regulator-vph-pwr {
>  		compatible = "regulator-fixed";
>  		regulator-name = "vph_pwr";
> @@ -262,6 +272,30 @@ active-config0 {
>  		};
>  	};
>  
> +	usb2-connector {
> +		compatible = "gpio-usb-b-connector",
> +			     "usb-b-connector";
> +		label = "micro-USB";
> +		type = "micro";
> +		id-gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
> +		vbus-gpios = <&pm7325_gpios 9 GPIO_ACTIVE_HIGH>;
> +		vbus-supply = <&vdd_micro_usb_vbus>;
> +		pinctrl-0 = <&usb2_id_detect>;
> +		pinctrl-names = "default";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				usb2_connector_ep: endpoint {
> +					remote-endpoint = <&usb2_controller_ep>;
> +				};
> +			};
> +		};
> +	};
> +
>  	wcn6750-pmu {
>  		compatible = "qcom,wcn6750-pmu";
>  		pinctrl-0 = <&bt_en>;
> @@ -606,6 +640,7 @@ vreg_bob_3p296: bob {
>  			regulator-max-microvolt = <3960000>;
>  		};
>  	};
> +

Stray empty line

>  };
>  
>  &gcc {
> @@ -1137,6 +1172,12 @@ qup_uart7_sleep_tx: qup-uart7-sleep-tx-state {
>  		 */
>  		bias-pull-up;
>  	};
> +
> +	usb2_id_detect: usb2-id-detect-state {
> +		pins = "gpio61";
> +		function = "gpio";
> +		bias-pull-up;
> +	};
>  };
>  
>  &uart5 {
> @@ -1200,6 +1241,33 @@ &usb_1_qmpphy {
>  	status = "okay";
>  };
>  
> +&usb_2 {
> +	dr_mode = "otg";

This is default and can be dropped

> +	usb-role-switch;

THis should be moved to the kodiak.dtsi.

> +
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port@0 {
> +			reg = <0>;
> +			usb2_controller_ep: endpoint {
> +				remote-endpoint = <&usb2_connector_ep>;
> +			};
> +		};
> +	};
> +};
> +
> +&usb_2_hsphy {
> +	vdda-pll-supply = <&vreg_l10c_0p88>;
> +	vdda18-supply = <&vreg_l1c_1p8>;
> +	vdda33-supply = <&vreg_l2b_3p072>;
> +
> +	status = "okay";
> +};
> +
>  &usb_dp_qmpphy_out {
>  	remote-endpoint = <&redriver_phy_con_ss>;
>  };
> -- 
> 2.43.0
> 

-- 
With best wishes
Dmitry
Re: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB2 controller Micro-USB OTG
Posted by Akash Kumar 1 month, 2 weeks ago 
Hi,

On 2/11/2026 2:45 AM, Dmitry Baryshkov wrote:
> On Tue, Feb 10, 2026 at 08:09:26PM +0530, Akash Kumar wrote:
>> Enable the secondary USB controller (USB2) and its High-Speed PHY to
>> support OTG functionality via a Micro-USB connector.
>>
>> Define a dedicated 'usb2-connector' node using the 'gpio-usb-b-connector'
>> compatible to handle ID and VBUS detection. Link this connector to the
>> DWC3 controller via OF graph ports to satisfy schema requirements and
>> enable role switching.
>>
>> Specific hardware configuration:
>> - ID pin: TLMM 61
>> - VBUS detection: PM7325 GPIO 9
>> - VBUS supply: Fixed regulator controlled by TLMM 63
>> - Configure &usb_2 in OTG mode with role switching enabled.
>> - Define a gpio-usb-b-connector node for Micro-USB support, mapping the
>>   ID pin to TLMM 61 and VBUS detection to PM7325 GPIO 9.
>> - Add the 'vdd_micro_usb_vbus' fixed regulator (controlled by TLMM 63) to
>>   supply VBUS to the connector.
>> - Add the 'usb2_id_detect' pinctrl state to configure GPIO 61 for ID
>>   detection.
>> - Enable &usb_2_hsphy and populate necessary voltage supplies (VDDA PLL,
>>   VDDA 1.8V, VDDA 3.3V).
>>
>> Signed-off-by: Akash Kumar <akash.kumar@oss.qualcomm.com>
>> ---
>>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 68 ++++++++++++++++++++
>>  1 file changed, 68 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> index f29a352b0288..ee472d8b2db1 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> @@ -217,6 +217,16 @@ pmic_glink_sbu_in: endpoint {
>>  		};
>>  	};
>>  
>> +	vdd_micro_usb_vbus: regulator-micro-usb-vbus {
>> +	       compatible = "regulator-fixed";
>> +	       regulator-name = "MICRO_USB_VBUS";
>> +	       gpio = <&tlmm 63 GPIO_ACTIVE_HIGH>;
>> +	       regulator-min-microvolt = <5000000>;
>> +	       regulator-max-microvolt = <5000000>;
>> +	       regulator-boot-on;
>> +	       enable-active-high;
>> +	};
>> +
>>  	vph_pwr: regulator-vph-pwr {
>>  		compatible = "regulator-fixed";
>>  		regulator-name = "vph_pwr";
>> @@ -262,6 +272,30 @@ active-config0 {
>>  		};
>>  	};
>>  
>> +	usb2-connector {
>> +		compatible = "gpio-usb-b-connector",
>> +			     "usb-b-connector";
>> +		label = "micro-USB";
>> +		type = "micro";
>> +		id-gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
>> +		vbus-gpios = <&pm7325_gpios 9 GPIO_ACTIVE_HIGH>;
>> +		vbus-supply = <&vdd_micro_usb_vbus>;
>> +		pinctrl-0 = <&usb2_id_detect>;
>> +		pinctrl-names = "default";
>> +
>> +		ports {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +
>> +			port@0 {
>> +				reg = <0>;
>> +				usb2_connector_ep: endpoint {
>> +					remote-endpoint = <&usb2_controller_ep>;
>> +				};
>> +			};
>> +		};
>> +	};
>> +
>>  	wcn6750-pmu {
>>  		compatible = "qcom,wcn6750-pmu";
>>  		pinctrl-0 = <&bt_en>;
>> @@ -606,6 +640,7 @@ vreg_bob_3p296: bob {
>>  			regulator-max-microvolt = <3960000>;
>>  		};
>>  	};
>> +
> Stray empty line
will remove.
>>  };
>>  
>>  &gcc {
>> @@ -1137,6 +1172,12 @@ qup_uart7_sleep_tx: qup-uart7-sleep-tx-state {
>>  		 */
>>  		bias-pull-up;
>>  	};
>> +
>> +	usb2_id_detect: usb2-id-detect-state {
>> +		pins = "gpio61";
>> +		function = "gpio";
>> +		bias-pull-up;
>> +	};
>>  };
>>  
>>  &uart5 {
>> @@ -1200,6 +1241,33 @@ &usb_1_qmpphy {
>>  	status = "okay";
>>  };
>>  
>> +&usb_2 {
>> +	dr_mode = "otg";
> This is default and can be dropped
Sure.
>> +	usb-role-switch;
> THis should be moved to the kodiak.dtsi.
Kodiak.dtsi already has this property, so will remove from here.
>> +
>> +	status = "okay";
>> +
>> +	ports {
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +
>> +		port@0 {
>> +			reg = <0>;
>> +			usb2_controller_ep: endpoint {
>> +				remote-endpoint = <&usb2_connector_ep>;
>> +			};
>> +		};
>> +	};
>> +};
>> +
>> +&usb_2_hsphy {
>> +	vdda-pll-supply = <&vreg_l10c_0p88>;
>> +	vdda18-supply = <&vreg_l1c_1p8>;
>> +	vdda33-supply = <&vreg_l2b_3p072>;
>> +
>> +	status = "okay";
>> +};
>> +
>>  &usb_dp_qmpphy_out {
>>  	remote-endpoint = <&redriver_phy_con_ss>;
>>  };
>> -- 
>> 2.43.0
>>
Thanks for review.

Will send v2 with these minor fixes.

Regards,
Akash.

Patchew 2.1-devel-ea86937

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