As can be seen from OrangePi Lite 2 and One Plus schematics, VBUS pin on USB OTG port is directly connected to 5 V power supply. This mean that OTG port can safely operate only in host mode, even though these two boards have ID pin connected.
Signed-off-by: Jernej Skrabec <jernej.skra...@siol.net> --- arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi index f1be3dd558ca..ebc120a9232f 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi @@ -251,7 +251,12 @@ &uart0 { }; &usb2otg { - dr_mode = "otg"; + /* + * OrangePi Lite 2 and One Plus, where this DT is used, don't + * have a controllable VBUS even though they do have an ID pin. + * Using it as anything but a USB host is unsafe. + */ + dr_mode = "host"; status = "okay"; }; -- 2.26.0 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/20200413062433.1145043-3-jernej.skrabec%40siol.net.