[PATCH 1/1] ARM: dts: dra7x-evm: Enable dual-role mode for USB1

From: Roger Quadros
Date: Tue Apr 11 2017 - 09:17:00 EST


USB1 port is micro-AB type and can function as peripheral
as well as host. Enable dual-role mode for USB1.

We don't want to use the OTG controller block on this
platform as it limits host mode to high-speed. Instead
we rely on extcon framework to give us ID events for
dual-role mode detection.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>
---
arch/arm/boot/dts/dra7-evm.dts | 3 ++-
arch/arm/boot/dts/dra72-evm-common.dtsi | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 4bc4b57..c408aaa 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -527,7 +527,8 @@
};

&usb1 {
- dr_mode = "peripheral";
+ dr_mode = "otg";
+ extcon = <&extcon_usb1>;
};

&usb2 {
diff --git a/arch/arm/boot/dts/dra72-evm-common.dtsi b/arch/arm/boot/dts/dra72-evm-common.dtsi
index ad24544..8578054 100644
--- a/arch/arm/boot/dts/dra72-evm-common.dtsi
+++ b/arch/arm/boot/dts/dra72-evm-common.dtsi
@@ -392,7 +392,8 @@
};

&usb1 {
- dr_mode = "peripheral";
+ dr_mode = "otg";
+ extcon = <&extcon_usb1>;
};

&usb2 {
--
2.7.4