On 9/4/25 6:39 PM, Wasim Nazir wrote: > From: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx> > > Enable the first USB controller in device mode on the Lemans EVK > board and configure the associated LDO regulators to power > the PHYs accordingly. > > The USB port is a Type-C port controlled by HD3SS3320 port controller. > The role switch notifications would need to be routed to glue driver by > adding an appropriate usb-c-connector node in DT. However in the design, > the vbus supply that is to be provided to connected peripherals when > port is configured as an DFP, is controlled by a GPIO. > > There is also one ID line going from Port controller chip to GPIO-50 of > the SoC. As per the datasheet of HD3SS3320: > > "Upon detecting a UFP device, HD3SS3220 will keep ID pin high if VBUS is > not at VSafe0V. Once VBUS is at VSafe0V, the HD3SS3220 will assert ID > pin low. This is done to enforce Type-C requirement that VBUS must be > at VSafe0V before re-enabling VBUS." > > The current HD3SS3220 driver doesn't have this functionality present. So, > putting the first USB controller in device mode for now. Once the vbus > control based on ID pin is implemented in hd3ss3220.c, the > usb-c-connector will be implemented and dr mode would be made OTG. Hopefully that's somewhere on our todo list Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx> Konrad
