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

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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 */