On 9/15/2021 11:54 AM, Fabrice Gasnier wrote: > Currently the dwc2 doesn't fill in the 'otg_caps' of usb_gadget structure. > When registering a gadget device (e.g. via configfs), the > usb_otg_descriptor_init() checks the 'otg_caps' and 'otg_rev'. It defaults > to HNP and SRP bmAttributes if unspecified. There may be a mismatch with > what's being set in dwc2 params structure. This result in the descriptors > to be miss-configured in this case. > > So add an option to setup 'otg_caps' and 'otg_rev' in the params. It's > then provided to the gadget struct. These parameters can then be tuned > for each platform. In case it's not set, it will default to current > behavior. > Also add option to setup these from the device tree by calling > of_usb_update_otg_caps(). This provides support for standard properties > such as "otg-rev", "hnp-disable" and "srp-disable" (see usb-drd.yaml). > > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx> Acked-by: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
