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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 08:51:05 -0800
commit7bcaf3b265ae4d197d265916268bceed044d289c (patch)
treee83398e45fe22657204cc91503d9933436bfbe8c
parenta723a6cf79aa2e283d5134adf2787b8a35e0b8f3 (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 0e330a1de06a..12d2b4f5778f 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2168,7 +2168,7 @@ 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);