From: John Youn <johny...@synopsys.com>
Now that all the infrastructure is in place, we can
clear events in the top-half handler in order to
bring IRQ line low ASAP.
This is also a necessary step in order to implement
workaround for known erratum in follow-up patches.
Signed-off-by: John Youn <johny...@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.ba...@linux.intel.com>
---
drivers/usb/dwc3/gadget.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 0481cb7d7142..3d5ba4106979 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2836,8 +2836,6 @@ static irqreturn_t dwc3_process_event_buf(struct
dwc3_event_buffer *evt)
*/
evt->lpos = (evt->lpos + 4) % evt->length;
left -= 4;
-
- dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 4);
}
evt->count = 0;
@@ -2899,6 +2897,8 @@ static irqreturn_t dwc3_check_event_buf(struct
dwc3_event_buffer *evt)
if (amount < count)
memcpy(evt->cache, evt->buf, count - amount);
+ dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), count);
+
return IRQ_WAKE_THREAD;
}
--
2.10.1
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