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usb: dwc2: Init desc_before_addr

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Initialize desc_before_addr, otherwise the USB core won't send the
first 64B Get Device Descriptor request in common/usb.c function
usb_setup_descriptor() . There are some USB devices which expect
this sequence and otherwise can misbehave.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2016-04-26 03:02:35 +02:00
parent b4fbd089e4
commit e96e064f51
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/host/dwc2.c
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@ -1201,6 +1201,9 @@ static int dwc2_usb_ofdata_to_platdata(struct udevice *dev)
static int dwc2_usb_probe(struct udevice *dev)
{
struct dwc2_priv *priv = dev_get_priv(dev);
struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev);
bus_priv->desc_before_addr = true;
return dwc2_init_common(priv);
}