[PATCH 5.10 096/135] arm64: dts: rockchip: use USB host by default on rk3399-rock-pi-4

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vicente Bergas <vicencb@xxxxxxxxx>

[ Upstream commit e12f67fe83446432ef16704c22ec23bd1dbcd094 ]

Based on the board schematics at
https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi_4c_v12_sch_20200620.pdf
on page 19 there is an USB Type-A receptacle being used as an USB-OTG port.

But the Type-A connector is not valid for OTG operation, for this reason
there is a switch to select host or device role.
This is non-compliant and error prone because switching is manual.
So, use host mode as it corresponds for a Type-A receptacle.

Signed-off-by: Vicente Bergas <vicencb@xxxxxxxxx>
Link: https://lore.kernel.org/r/20201201154132.1286-4-vicencb@xxxxxxxxx
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Stable-dep-of: cee572756aa2 ("arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index 98f52fac13535..6dc6dee6c13e2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -671,7 +671,7 @@
 
 &usbdrd_dwc3_0 {
 	status = "okay";
-	dr_mode = "otg";
+	dr_mode = "host";
 };
 
 &usbdrd3_1 {
-- 
2.40.1






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