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usb: dwc3: gadget: increase tx fifo size for ss isoc endpoints 

Improve performance of isoc transfers in superspeed by increasing the
number of possible endpoints available, matching that of what was
configured for bulk transfers.

Signed-off-by: Dan Vacura <w36195@motorola.com>
Link: https://lore.kernel.org/r/20220420183338.445622-1-w36195@motorola.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Vacura 2022-04-20 13:33:38 -05:00 committed by Greg Kroah-Hartman
parent a85f023022
commit 6a7c7df993
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/dwc3/gadget.c
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@ -782,7 +782,8 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep)
num_fifos = 3;
if (dep->endpoint.maxburst > 6 &&
usb_endpoint_xfer_bulk(dep->endpoint.desc) && DWC3_IP_IS(DWC31))
(usb_endpoint_xfer_bulk(dep->endpoint.desc) ||
usb_endpoint_xfer_isoc(dep->endpoint.desc)) && DWC3_IP_IS(DWC31))
num_fifos = dwc->tx_fifo_resize_max_num;
/* FIFO size for a single buffer */