diff options
Diffstat (limited to 'drivers/usb/host/dwc2.c')
| -rw-r--r-- | drivers/usb/host/dwc2.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index 30b51b3d7f..d08879dc67 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -1088,6 +1088,15 @@ static int dwc2_init_common(struct dwc2_priv *priv) } } + /* + * Add a 1 second delay here. This gives the host controller + * a bit time before the comminucation with the USB devices + * is started (the bus is scanned) and fixes the USB detection + * problems with some problematic USB keys. + */ + if (readl(®s->gintsts) & DWC2_GINTSTS_CURMODE_HOST) + mdelay(1000); + return 0; } |