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Message-Id: <20251024114845.2395166-3-pritam.sutar@samsung.com>
Date: Fri, 24 Oct 2025 17:18:44 +0530
From: Pritam Manohar Sutar <pritam.sutar@...sung.com>
To: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
alim.akhtar@...sung.com
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
rosa.pila@...sung.com, dev.tailor@...sung.com, faraz.ata@...sung.com,
muhammed.ali@...sung.com, selvarasu.g@...sung.com, pritam.sutar@...sung.com
Subject: [PATCH 2/3] arm64: dts: exynos: ExynosAutov920: Add regulators for
the USB
Add dummy regulator for USB and PHY supplies.
Add vbus regulator that is enabled by GPIO pin.
Signed-off-by: Pritam Manohar Sutar <pritam.sutar@...sung.com>
---
.../boot/dts/exynos/exynosautov920-sadk.dts | 139 ++++++++++++++++++
1 file changed, 139 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
index a397f068ed53..f90f7704597c 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
+++ b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
@@ -52,6 +52,76 @@ memory@...00000 {
<0x8 0x80000000 0x1 0xfba00000>,
<0xa 0x00000000 0x2 0x00000000>;
};
+
+ /* TODO: Remove this once PMIC is implemented */
+ dummy_regulator: regulator-0 {
+ compatible = "regulator-fixed";
+ regulator-name = "dummy_regulator";
+ };
+
+ usbdrd31_dwc3_vbus: usbdrd31_dwc3-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usbdrd31_dwc3-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ regulator-always-on;
+ gpio = <&gpp2 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ /* Use gpio for enabling vbus regulator */
+ usb_phy0: usb-phy0 {
+ compatible = "usb-nop-xceiv";
+ vbus-supply = <&usbdrd31_dwc3_vbus>;
+ };
+
+ usbdrd20_dwc3_0_vbus: usbdrd20_dwc3_0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usbdrd20_dwc3_0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ regulator-always-on;
+ gpio = <&gpp2 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ /* Use gpio for enabling vbus regulator */
+ usb_phy1: usb-phy1 {
+ compatible = "usb-nop-xceiv";
+ vbus-supply = <&usbdrd20_dwc3_0_vbus>;
+ };
+
+ usbdrd20_dwc3_1_vbus: usbdrd20_dwc3_1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usbdrd20_dwc3_1-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ regulator-always-on;
+ gpio = <&gpp2 2 GPIO_ACTIVE_HIGH>;
+ };
+
+ /* Use gpio for enabling vbus regulator */
+ usb_phy2: usb-phy2 {
+ compatible = "usb-nop-xceiv";
+ vbus-supply = <&usbdrd20_dwc3_1_vbus>;
+ };
+
+ usbdrd20_dwc3_2_vbus: usbdrd20_dwc3_2-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usbdrd20_dwc3_2-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ regulator-always-on;
+ gpio = <&gpp2 3 GPIO_ACTIVE_HIGH>;
+ };
+
+ /* Use gpio for enabling vbus regulator */
+ usb_phy3: usb-phy3 {
+ compatible = "usb-nop-xceiv";
+ vbus-supply = <&usbdrd20_dwc3_2_vbus>;
+ };
};
&pinctrl_alive {
@@ -86,3 +156,72 @@ &usi_0 {
&xtcxo {
clock-frequency = <38400000>;
};
+
+&usbdrd31_ssphy {
+ dvdd-supply = <&dummy_regulator>;
+ vdd18-supply = <&dummy_regulator>;
+};
+
+&usbdrd31_hsphy {
+ dvdd-supply = <&dummy_regulator>;
+ vdd18-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd31_dwc3 {
+ maximum-speed = "super-speed-plus";
+ usb-phy = <&usb_phy0>;
+};
+
+&usbdrd31 {
+ vdd10-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_phy0 {
+ dvdd-supply = <&dummy_regulator>;
+ vdd18-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_dwc3_0 {
+ maximum-speed = "high-speed";
+ usb-phy = <&usb_phy1>;
+};
+
+&usbdrd20_0 {
+ vdd10-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_phy1 {
+ dvdd-supply = <&dummy_regulator>;
+ vdd18-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_dwc3_1 {
+ maximum-speed = "high-speed";
+ usb-phy = <&usb_phy2>;
+};
+
+&usbdrd20_1 {
+ vdd10-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_phy2 {
+ dvdd-supply = <&dummy_regulator>;
+ vdd18-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
+
+&usbdrd20_dwc3_2 {
+ maximum-speed = "high-speed";
+ usb-phy = <&usb_phy3>;
+};
+
+&usbdrd20_2 {
+ vdd10-supply = <&dummy_regulator>;
+ vdd33-supply = <&dummy_regulator>;
+};
--
2.34.1
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