USB: Increase reset timeout.

John's NEC 0.96 xHCI host controller needs a longer timeout for a warm reset to complete. The logs show it takes 650ms to complete the warm reset, so extend the hub reset timeout to 800ms to be on the safe side. This commit should be backported to kernels as old as 3.2, that contain the commit 75d7cf7 "usbcore: refine warm reset logic". Signed-off-by: Sarah Sharp <[email protected]> Acked-by: Alan Stern <[email protected]> Reported-by: John Covici <[email protected]> Cc: [email protected]
josf · Jan 3, 2013 · 77c7f07 · 77c7f07
1 parent 41e7e05
commit 77c7f07
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
@@ -2499,7 +2499,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
 #define HUB_SHORT_RESET_TIME	10
 #define HUB_BH_RESET_TIME	50
 #define HUB_LONG_RESET_TIME	200
-#define HUB_RESET_TIMEOUT	500
+#define HUB_RESET_TIMEOUT	800
 
 static int hub_port_reset(struct usb_hub *hub, int port1,
 			struct usb_device *udev, unsigned int delay, bool warm);