by setting IOC always, we can recycle TRBs a lot sooner at the expense of some increased CPU load.
The extra load seems to be quite minimal on OMAP5 devices (instead of 1 IRQ for one MSC transfer, we get CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS). Signed-off-by: Felipe Balbi <[email protected]> --- drivers/usb/dwc3/gadget.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 5401b2b..4d72152 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -778,7 +778,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, case USB_ENDPOINT_XFER_BULK: case USB_ENDPOINT_XFER_INT: - trb->ctrl = DWC3_TRBCTL_NORMAL; + trb->ctrl = DWC3_TRBCTL_NORMAL + | DWC3_TRB_CTRL_IOC; break; default: /* @@ -1858,9 +1859,6 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, return 1; } - if ((event->status & DEPEVT_STATUS_IOC) && - (trb->ctrl & DWC3_TRB_CTRL_IOC)) - return 0; return 1; } -- 1.8.4.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
