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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2012-11-14 17:16:52 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-17 08:46:38 -0800
commit7462d1bd2e5e5d5d993aa815f89afd4e4d1dd35a (patch)
treedfeba09fa044cb0f1de4fac5e97426beede8218f
parent17722a0806c1033edcc564958a929f836bc4050b (diff)
USB: Increase reset timeout.
commit 77c7f072c87fa951e9a74805febf26466f31170c upstream. 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 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic". Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: John Covici <covici@ccs.covici.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/core/hub.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 4293d0376e5d..6182168cbc05 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2460,7 +2460,7 @@ 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);