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 f5440ae..dbb0da0 100644 (file)
--- 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 1d83f2e..d3f16c1 100644 (file)
--- 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 998b129..cab0a6e 100644 (file)
--- 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 7985d1c..232c906 100644 (file)
--- 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>;
                        };