On 2025-12-16 11:13, Marek Vasut wrote: > On 10/17/25 5:30 PM, Kaustabh Chakraborty wrote: >> Documentation [1] states that the default value of the dr_mode property >> is "otg". In this driver however, this case is not handled. Add simple >> logic to fall back to USB_DR_MODE_OTG if its reported to be >> USB_DR_MODE_UNKNOWN. >> >> Link: >> https://elixir.bootlin.com/u-boot/v2025.10/source/dts/upstream/Bindings/usb/usb-drd.yaml#L23 >> [1] >> Signed-off-by: Kaustabh Chakraborty <[email protected]> > How does the driver end up with "unknown" state in the first place ? What is > triggering this problem ? (this should be in the commit message)
When dr_mode is not defined in the device tree node. It isn't marked as a mandatory node, and defaults to OTG. That's the reason in the commit. I will add this info in the commit message then.
