Based on USB2.0 Spec Section 11.24.2.7.2.5:
"This bit is set when the port transitions from the Resetting state (or,
if present, the Speed_eval state) to the Enabled state."
Also Section 11.24.2.13:
"Setting the reset feature PORT_RESET causes the hub to signal reset on
that port. When the reset signaling is complete, the hub sets the
C_PORT_RESET status change and immediately enables the port."
So let's also check C_PORT_RESET for reset completion.
Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
---
drivers/usb/core/hub.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7801bb30bdba..d96058372280 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2721,7 +2721,8 @@ static int hub_port_wait_reset(struct usb_hub *hub, int
port1,
* so also wait for the connection to be re-established.
*/
if (!(portstatus & USB_PORT_STAT_RESET) &&
- (portstatus & USB_PORT_STAT_CONNECTION))
+ (portstatus & USB_PORT_STAT_CONNECTION) &&
+ (portchange & USB_PORT_STAT_C_RESET))
break;
/* switch to the long delay after two short delay failures */
--
2.17.1
