From: Dave Tubbs <dave.tu...@portalislc.com>
Make sure each c67x00 TD has been executed or retry using the existing
retry mechanism. Reference Cypress Semiconductor BIOS User's Manual 1.2,
page 3-16
Signed-off-by: Dave Tubbs <dave.tu...@portalislc.com>
---
drivers/usb/c67x00/c67x00-sched.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/c67x00/c67x00-sched.c
b/drivers/usb/c67x00/c67x00-sched.c
index aa49162..dd5bdb4 100644
--- a/drivers/usb/c67x00/c67x00-sched.c
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -1033,6 +1033,12 @@ static inline void c67x00_check_td_list(struct
c67x00_hcd *c67x00)
!td_acked(td))
goto cont;
+ /* at this point, there are no errors, but it's still possible
that the
+ * td wasn't executed by the c67x00. Confirm it was executed or
force a
+ * retry */
+ if(((td->retry_cnt) & TD_RETRYCNTMASK_ACT_FLG) && (td->status
== 0))
+ goto cont;
+
/* Sequence ok and acked, don't need to fix toggle */
ack_ok = 1;
--
1.7.1
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