From 6a7c7df993bd3c90014453ec59a7b455613cf0e4 Mon Sep 17 00:00:00 2001 From: Dan Vacura Date: Wed, 20 Apr 2022 13:33:38 -0500 Subject: [PATCH] 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 Link: https://lore.kernel.org/r/20220420183338.445622-1-w36195@motorola.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/gadget.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 66a256c475148..c3d95f9b010b1 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -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 */ -- 2.49.0