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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/arm/boot/dts/mt2701-evb.dts
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@@ -6,6 +6,7 @@
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  */
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 /dts-v1/;
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+#include <dt-bindings/gpio/gpio.h>
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 #include "mt2701.dtsi"
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 / {
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@@ -13,6 +14,7 @@
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 	compatible = "mediatek,mt2701-evb", "mediatek,mt2701";
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 	memory {
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+		device_type = "memory";
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 		reg = <0 0x80000000 0 0x40000000>;
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 	};
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@@ -59,6 +61,15 @@
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 			255
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 		>;
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 		default-brightness-level = <9>;
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+	};
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+
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+	usb_vbus: regulator@0 {
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+		compatible = "regulator-fixed";
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+		regulator-name = "usb_vbus";
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+		regulator-min-microvolt = <5000000>;
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+		regulator-max-microvolt = <5000000>;
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+		gpio = <&pio 45 GPIO_ACTIVE_HIGH>;
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+		enable-active-high;
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 	};
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 };
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@@ -229,3 +240,14 @@
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 &uart0 {
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 	status = "okay";
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 };
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+
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+&usb2 {
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+	status = "okay";
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+	usb-role-switch;
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+	connector{
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+		compatible = "gpio-usb-b-connector", "usb-b-connector";
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+		type = "micro";
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+		id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
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+		vbus-supply = <&usb_vbus>;
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+	};
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+};