From 3a9bda9a3292fe63710361feb6d344f692a72f1e Mon Sep 17 00:00:00 2001
From: Dongwoo Lee <dwoo08.lee@samsung.com>
Date: Fri, 23 Jun 2017 15:50:36 +0900
Subject: [PATCH] ARM: dts: exynos: Add usb-gpio-extcon support for dual-role
 operation for OdroidXU3

This patch enables dual-role support of dwc3 by adding
usb-gpio-extcon driver.

Signed-off-by: Dongwoo Lee <dwoo08.lee@samsung.com>
[mszyprow: added XU3lite support, rephrased commit subject]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 22 ++++++++++++++++++++++
 arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts    |  3 ++-
 arch/arm/boot/dts/exynos5422-odroidxu3.dts         |  3 ++-
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 445c6c5..96489f0 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -339,6 +339,14 @@
 			};
 		};
 	};
+
+	extcon_usbdrd: extcon_usbdrd {
+		compatible = "linux,extcon-usb-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&usbdrd_id &usbdrd_vbus>;
+		id-gpios = <&gpx1 1 GPIO_ACTIVE_HIGH>;
+		vbus-gpios = <&gpx3 4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &adc {
@@ -407,6 +415,20 @@
 		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
 		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
 	};
+
+	usbdrd_id: usbdrd_id {
+		samsung,pins = "gpx1-1";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+	};
+
+	usbdrd_vbus: usbdrd_vbus {
+		samsung,pins = "gpx3-4";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+	};
 };
 
 &pinctrl_1 {
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts
index 03fa88c..b73cf3d 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts
@@ -34,5 +34,6 @@
 };
 
 &usbdrd_dwc3_1 {
-	dr_mode = "peripheral";
+	dr_mode = "otg";
+	extcon = <&extcon_usbdrd>;
 };
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
index 9ed6564..2df6af3 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
@@ -65,5 +65,6 @@
 };
 
 &usbdrd_dwc3_1 {
-	dr_mode = "peripheral";
+	dr_mode = "otg";
+	extcon = <&extcon_usbdrd>;
 };
-- 
2.7.4