linux-kernel - [PATCH 5/5] arm64: dts: exynos990-r8s: Enable USB

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Message-Id: <20250217-exynos990-dt-changes-febuary-v1-5-99935218cbf4@mentallysanemainliners.org>
Date: Mon, 17 Feb 2025 22:32:07 +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 5/5] arm64: dts: exynos990-r8s: 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-r8s.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos990-r8s.dts b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
index 6bae3c0ecc1caae31d2c6b6e81bbd76a4ccd6f5f..55342db61979bc28e65f68c9ba7d6b452dbf6c07 100644
--- a/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
+++ b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
@@ -44,6 +44,12 @@ memory@...00000 {
 		      <0x8 0x80000000 0x0 0xc0000000>;
 	};
 
+	/* 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