[PATCH v3 2/4] usb: aspeed-vhub: fix remote wakeup failure in iKVM use case

[Neal Liu]

Signaling remote wakeup if an emulated USB device has any activity
if the device is allowed by host.

Signed-off-by: Neal Liu <neal_liu@xxxxxxxxxxxxxx>
---
 drivers/usb/gadget/udc/aspeed-vhub/epn.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/gadget/udc/aspeed-vhub/epn.c b/drivers/usb/gadget/udc/aspeed-vhub/epn.c
index 917892ca8753..ccc239b5cc17 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/epn.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/epn.c
@@ -381,6 +381,11 @@ static int ast_vhub_epn_queue(struct usb_ep* u_ep, struct usb_request *u_req,
 	} else
 		u_req->dma = 0;
 
+	if (ep->dev->wakeup_en) {
+		EPVDBG(ep, "Wakeup host first\n");
+		ast_vhub_hub_wake_all(vhub);
+	}
+
 	EPVDBG(ep, "enqueue req @%p\n", req);
 	EPVDBG(ep, " l=%d dma=0x%x zero=%d noshort=%d noirq=%d is_in=%d\n",
 	       u_req->length, (u32)u_req->dma, u_req->zero,
-- 
2.25.1