Since we are saving the event count and handling the events in the threaded interrupt handler, we can write and clear out the eventcount in the hard interrupt handler itself. This behavior will be required for IP 3.00a cores that need to use interrupt moderation as a workaround for an RTL issue were the interrupt line cannot be masked between the hard/soft interrupt handler. Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx> --- 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 a9c1d75..ac9eb39 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2877,8 +2877,6 @@ static irqreturn_t dwc3_process_event_buf(struct dwc3_event_buffer *evt) */ evt->lpos = (evt->lpos + 4) % DWC3_EVENT_BUFFERS_SIZE; left -= 4; - - dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 4); } evt->count = 0; @@ -2928,6 +2926,8 @@ static irqreturn_t dwc3_check_event_buf(struct dwc3_event_buffer *evt) evt->count = count; evt->flags |= DWC3_EVENT_PENDING; + dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), count); + /* Mask interrupt */ reg = dwc3_readl(dwc->regs, DWC3_GEVNTSIZ(0)); reg |= DWC3_GEVNTSIZ_INTMASK; -- 2.10.0 -- 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
