usb: gadget: aspeed: Implement dummy hub TT requests

We just accept them instead of stalling and return
zeros on GetTTState.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/udc/aspeed-vhub/hub.c b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
index 0755115fd90df3b4359d6f5c4f02eb13be896ff9..19b3517e04c0abc9f0b300f64a0e6972ecb57d2e 100644 (file)
--- a/drivers/usb/gadget/udc/aspeed-vhub/hub.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
@@ -730,6 +730,12 @@ enum std_req_rc ast_vhub_class_hub_request(struct ast_vhub_ep *ep,
        case ClearPortFeature:
                EPDBG(ep, "ClearPortFeature(%d,%d)\n", wIndex & 0xf, wValue);
                return ast_vhub_clr_port_feature(ep, wIndex & 0xf, wValue);
+       case ClearTTBuffer:
+       case ResetTT:
+       case StopTT:
+               return std_req_complete;
+       case GetTTState:
+               return ast_vhub_simple_reply(ep, 0, 0, 0, 0);
        default:
                EPDBG(ep, "Unknown class request\n");
        }