usb: gadget: dwc2_udc_otg: modified the check condition for max packe…

…t size of ep_in in high speed In current high speed fastboot, fs_ep_in.wMaxPacketSize is configured 64 bytes as default, as a result, it failed to match the size at initialization stage in usb controller. Actually, hardware can support less than or equal to 512 bytes in high speed mode, so I changed the condition from '!=' to '>' to fix this issue. Signed-off-by: Frank Wang <[email protected]> Tested-by: Steve Rae <[email protected]>
lukasauer · Feb 4, 2016 · 8c9b4d5 · 8c9b4d5
1 parent 44189a0
commit 8c9b4d5
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -557,8 +557,8 @@ static int dwc2_ep_enable(struct usb_ep *_ep,
 	}
 
 	/* hardware _could_ do smaller, but driver doesn't */
-	if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
-	     && le16_to_cpu(get_unaligned(&desc->wMaxPacketSize)) !=
+	if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK &&
+	     le16_to_cpu(get_unaligned(&desc->wMaxPacketSize)) >
 	     ep_maxpacket(ep)) || !get_unaligned(&desc->wMaxPacketSize)) {
 
 		debug("%s: bad %s maxpacket\n", __func__, _ep->name);