In case the optional dr_mode property isn't set in the dwc3 nodes the
the controller will go into OTG mode iff both USB host and USB gadget
functionality are enabled in the kernel configuration. Unfortunately this
results in USB not working on exynos5420-peach-pit and
exynos5800-peach-pi with such a kernel configuration unless manually
change the mode. To resolve that explicitly configure the dual role
mode as host
Signed-off-by: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx>
Reviewed-by: Andreas Färber <afaerber@xxxxxxx>
---
Changes in v2: alphabetically sort the dts entries
Changes in v3: Fix typo in commit message
arch/arm/boot/dts/exynos5420-peach-pit.dts | 8 ++++++++
arch/arm/boot/dts/exynos5420.dtsi | 4 ++--
arch/arm/boot/dts/exynos5800-peach-pi.dts | 8 ++++++++
3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 228a6b1..29d3a59 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -427,6 +427,14 @@
status = "okay";
};
+&usbdrd_dwc3_0 {
+ dr_mode = "host";
+};
+
+&usbdrd_dwc3_1 {
+ dr_mode = "host";
+};
+
&usbdrd_phy0 {
vbus-supply = <&usb300_vbus_reg>;
};
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index bfe056d..8617a03 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -815,7 +815,7 @@
#size-cells = <1>;
ranges;
- dwc3 {
+ usbdrd_dwc3_0: dwc3 {
compatible = "snps,dwc3";
reg = <0x12000000 0x10000>;
interrupts = <0 72 0>;
@@ -841,7 +841,7 @@
#size-cells = <1>;
ranges;
- dwc3 {
+ usbdrd_dwc3_1: dwc3 {
compatible = "snps,dwc3";
reg = <0x12400000 0x10000>;
interrupts = <0 73 0>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index f3ee48b..2064550 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -425,6 +425,14 @@
status = "okay";
};
+&usbdrd_dwc3_0 {
+ dr_mode = "host";
+};
+
+&usbdrd_dwc3_1 {
+ dr_mode = "host";
+};
+
&usbdrd_phy0 {
vbus-supply = <&usb300_vbus_reg>;
};
--
2.1.0
--
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