diff options
| author | Felipe Balbi <balbi@ti.com> | 2013-12-13 14:19:33 -0600 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-03-05 09:44:49 -0600 |
| commit | f3af36511e60669a2b5644d17378c7ea4e42d8b1 (patch) | |
| tree | 6202c1f125fbb03d9297a13b524361d9f1155d87 /drivers/usb/dwc3 | |
| parent | 0e06bcac79ce6bb49adee22a991206933b7ea52d (diff) | |
| download | linux-f3af36511e60669a2b5644d17378c7ea4e42d8b1.tar.bz2 | |
usb: dwc3: gadget: always enable IOC on bulk/interrupt transfers
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 <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 2da0a5a2803a..9e878d9bc909 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -771,9 +771,6 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST; else trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS; - - if (!req->request.no_interrupt && !chain) - trb->ctrl |= DWC3_TRB_CTRL_IOC; break; case USB_ENDPOINT_XFER_BULK: @@ -788,6 +785,9 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, BUG(); } + if (!req->request.no_interrupt && !chain) + trb->ctrl |= DWC3_TRB_CTRL_IOC; + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { trb->ctrl |= DWC3_TRB_CTRL_ISP_IMI; trb->ctrl |= DWC3_TRB_CTRL_CSP; @@ -1855,9 +1855,6 @@ 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; } |