linux-kernel - [PATCH 4/5] arm64: dts: exynos990-c1s: Enable USB

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Message-Id: <20250217-exynos990-dt-changes-febuary-v1-4-99935218cbf4@mentallysanemainliners.org>
Date: Mon, 17 Feb 2025 22:32:06 +0100
From: Igor Belwon <igor.belwon@...tallysanemainliners.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <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, 
 Igor Belwon <igor.belwon@...tallysanemainliners.org>
Subject: [PATCH 4/5] arm64: dts: exynos990-c1s: Enable USB

Enable both the USB PHY as well as the DWC3 controller nodes.

Since we do not have any PMIC for USB implemented yet, use dummy
regulators until we do.

Signed-off-by: Igor Belwon <igor.belwon@...tallysanemainliners.org>
---
 arch/arm64/boot/dts/exynos/exynos990-c1s.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos990-c1s.dts b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
index 36a6f1377e92b40716c606cceb752f642ae603e3..9f0ad4f9673a87b4d75f3c7d208c8c37bb51fe2d 100644
--- a/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
+++ b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
@@ -44,6 +44,12 @@ memory@...00000 {
 		      <0x8 0x80000000 0x1 0x7ec00000>;
 	};
 
+	/* TODO: Remove this once PMIC is implemented */
+	reg_dummy: regulator-0 {
+		compatible = "regulator-fixed";
+		regulator-name = "dummy_reg";
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -113,3 +119,13 @@ key_volup: key-volup-pins {
 		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
 	};
 };
+
+&usbdrd {
+	status = "okay";
+	vdd10-supply = <&reg_dummy>;
+	vdd33-supply = <&reg_dummy>;
+};
+
+&usbdrd_phy {
+	status = "okay";
+};

-- 
2.47.2