linux-kernel - [PATCH 10/12] ARM: dts: exynos: add fake USB DWC3 supplies to SMDK5410

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Date:   Sun, 23 Jan 2022 12:16:42 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 10/12] ARM: dts: exynos: add fake USB DWC3 supplies to SMDK5410

Add dummy/fake voltage regulators for USB DWC3 block on Exynos5410
SMDK5410 board.  These regulators are required by dtschema, however the
SMDK5410 board does not define the PMIC providing regulators.  Use dummy
fixed-regulators just to satisfy the dtschema checks.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 arch/arm/boot/dts/exynos5410-smdk5410.dts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5410-smdk5410.dts b/arch/arm/boot/dts/exynos5410-smdk5410.dts
index 2a3ade77a2de..eae69e857247 100644
--- a/arch/arm/boot/dts/exynos5410-smdk5410.dts
+++ b/arch/arm/boot/dts/exynos5410-smdk5410.dts
@@ -41,6 +41,19 @@ firmware@...7000 {
 		reg = <0x02037000 0x1000>;
 	};
 
+	vdd10_usb3: voltage-regulator-0 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD10_USB3";
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <1000000>;
+	};
+
+	vdd33_usb3: voltage-regulator-0 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD33_USB3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &mmc_0 {
@@ -121,3 +134,13 @@ &serial_1 {
 &serial_2 {
 	status = "okay";
 };
+
+&usbdrd3_0 {
+	vdd10-supply = <&vdd10_usb3>;
+	vdd33-supply = <&vdd33_usb3>;
+};
+
+&usbdrd3_1 {
+	vdd10-supply = <&vdd10_usb3>;
+	vdd33-supply = <&vdd33_usb3>;
+};
-- 
2.32.0