From: Bryan Paluch <bryanpaluch@gmail.com>
Date: Mon, 17 Oct 2016 12:54:46 +0000 (-0400)
Subject: usb: increase ohci watchdog delay to 275 msec
X-Git-Tag: firefly_0821_release~176^2~4^2~19^2~45
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ce423aca01262faadcaf127f986fa219ec9021eb;p=firefly-linux-kernel-4.4.55.git

usb: increase ohci watchdog delay to 275 msec

commit ed6d6f8f42d7302f6f9b6245f34927ec20d26c12 upstream.

Increase ohci watchout delay to 275 ms. Previous delay was 250 ms
with 20 ms of slack, after removing slack time some ohci controllers don't
respond in time. Logs from systems with controllers that have the
issue would show "HcDoneHead not written back; disabled"

Signed-off-by: Bryan Paluch <bryanpaluch@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 760cb57e954e..9d1192aea9d0 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -72,7 +72,7 @@
 static const char	hcd_name [] = "ohci_hcd";
 
 #define	STATECHANGE_DELAY	msecs_to_jiffies(300)
-#define	IO_WATCHDOG_DELAY	msecs_to_jiffies(250)
+#define	IO_WATCHDOG_DELAY	msecs_to_jiffies(275)
 
 #include "ohci.h"
 #include "pci-quirks.h"