[PATCH 2/2] usb: hub: Add missing reset recovery delay

[Hector Martin]

Some devices like YubiKeys need more time before SET_ADDRESS. The spec
says we need to wait 10ms.

Signed-off-by: Hector Martin <marcan at marcan.st>
---
 common/usb_hub.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/common/usb_hub.c b/common/usb_hub.c
index ba11a188ca64..858ada0f73be 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -391,6 +391,13 @@ int usb_hub_port_connect_change(struct usb_device *dev, int port)
 		break;
 	}
 
+	/*
+	 * USB 2.0 7.1.7.5: devices must be able to accept a SetAddress()
+	 * request (refer to Section 11.24.2 and Section 9.4 respectively)
+	 * after the reset recovery time 10 ms
+	 */
+	mdelay(10);
+
 #if CONFIG_IS_ENABLED(DM_USB)
 	struct udevice *child;
 

-- 
2.41.0