From: John Youn <johnyoun@xxxxxxxxxxxx> 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 <johnyoun@xxxxxxxxxxxx> Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
