* Felipe Balbi <balbi@xxxxxxxxxx> [171204 11:43]: > Roger Quadros <rogerq@xxxxxx> writes: > > > The metastability workaround causes Erratic errors [1] > > on the HighSpeed USB PHY which can cause upto 2 seconds > > delay in enumerating to a USB host while in Gadget mode. > > > > Disable the Run/Stop metastability workaround to avoid this > > ill effect. We are aware that this opens up the opportunity > > for Run/Stop metastability, however this issue has never been > > observed in TI releases so we think that Run/Stop metastability > > is a lesser evil than the PHY Erratic errors. So disable it. > > > > [1] USB controller trace during gadget enumeration > > irq/90-dwc3-969 [000] d... 52.323145: dwc3_event: event (00000901): Erratic Error [U0] > > irq/90-dwc3-969 [000] d... 52.560646: dwc3_event: event (00000901): Erratic Error [U0] > > irq/90-dwc3-969 [000] d... 52.798144: dwc3_event: event (00000901): Erratic Error [U0] > > > > Signed-off-by: Roger Quadros <rogerq@xxxxxx> > > FWIW: > > Acked-by: Felipe Balbi <felipe.balbi@linux/intel.com> > > I'm taking the dwc3 counterpart to v4.16 OK applying this into omap-for-v4.16/dt thanks. Tony -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
