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Merge "USB: dwc: Reduce TxFIFO of non burst Bulk In endpoint to 1K from 3K"

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2013-03-04 06:46:38 -08:00
committed by Gerrit - the friendly Code Review server
parent bcbcbb0f9a daf082ced4
commit 909c192794
1 changed files with 6 additions and 4 deletions
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drivers/usb/dwc3/gadget.c
+6 -4
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@@ -191,7 +191,8 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc)
* FIXME For now we will only allocate 1 wMaxPacketSize space
* for each enabled endpoint, later patches will come to
* improve this algorithm so that we better use the internal
* FIFO space
* FIFO space. Also consider the case where TxFIFO RAM space
* may change dynamically based on the USB configuration.
*/
for (num = 0; num < DWC3_ENDPOINTS_NUM; num++) {
struct dwc3_ep *dep = dwc->eps[num];
@@ -205,7 +206,8 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc)
if (!(dep->flags & DWC3_EP_ENABLED))
continue;
if (usb_endpoint_xfer_bulk(dep->endpoint.desc)
if (((dep->endpoint.maxburst > 1) &&
usb_endpoint_xfer_bulk(dep->endpoint.desc))
|| usb_endpoint_xfer_isoc(dep->endpoint.desc))
mult = 3;
@@ -215,8 +217,8 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc)
* Make sure that's true somehow and change FIFO allocation
* accordingly.
*
* If we have Bulk or Isochronous endpoints, we want
* them to be able to be very, very fast. So we're giving
* If we have Bulk (burst only) or Isochronous endpoints, we
* want them to be able to be very, very fast. So we're giving
* those endpoints a fifo_size which is enough for 3 full
* packets
*/