From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Date: Sat, 11 Dec 2021 21:13:59 +0000 (+0300)
Subject: ARM: tegra: Add usb-role-switch property to USB OTG ports
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=e6fd5c1e9fc5b35ad855cf748cc18b86776b6389;p=uclinux-h8%2Flinux.git

ARM: tegra: Add usb-role-switch property to USB OTG ports

If an USB port is an OTG port, then we should add the usb-role-switch
property. Otherwise XUSB setup fails and therefore padctl is unable to
set up the ports. This leads to broken USB and PCIe ports. Add the
usb-role-switch properties to Tegra124 device-trees to fix the problem.

The error message shown without this patch is e.g:
usb2-0: usb-role-switch not found for otg mode

[digetx@gmail.com: improved commit message]

Tested-by: Thomas Graichen <thomas.graichen@gmail.com> # T124 Nyan Big
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
index f5440ae14cb4..dbb0da08cb95 100644
--- a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
+++ b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
@@ -1888,6 +1888,7 @@
 			usb2-0 {
 				status = "okay";
 				mode = "otg";
+				usb-role-switch;
 				vbus-supply = <&reg_usbo1_vbus>;
 			};
 
diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi b/arch/arm/boot/dts/tegra124-apalis.dtsi
index 1d83f2e254c5..d3f16c117b0c 100644
--- a/arch/arm/boot/dts/tegra124-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
@@ -1880,6 +1880,7 @@
 			usb2-0 {
 				status = "okay";
 				mode = "otg";
+				usb-role-switch;
 				vbus-supply = <&reg_usbo1_vbus>;
 			};
 
diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index 998b129321f8..cab0a6e95b7e 100644
--- a/arch/arm/boot/dts/tegra124-nyan.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
@@ -466,6 +466,7 @@
 				vbus-supply = <&vdd_usb1_vbus>;
 				status = "okay";
 				mode = "otg";
+				usb-role-switch;
 			};
 
 			usb2-1 {
diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index 7985d1cbc1c0..232c90604df9 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -973,7 +973,7 @@
 			usb2-0 {
 				status = "okay";
 				mode = "otg";
-
+				usb-role-switch;
 				vbus-supply = <&vdd_usb1_vbus>;
 			};