USB: dwc3: gadget: Increase TX fifo size for isochronous endpoint



Increase TX Fifo size for isochronous endpoint in case maxburst
is greater than 6 for better performance.

Change-Id: I0da45f5a9e2f77947a67776b3e41fd2bb920fca2
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>

parent 9093207f

drivers/usb/dwc3/gadget.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -230,6 +230,10 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 dwc, struct dwc3_ep dep)
		&& dwc3_is_usb31(dwc))
		mult = 6;

		if ((dep->endpoint.maxburst > 6) &&
		usb_endpoint_xfer_isoc(dep->endpoint.desc))
		mult = 6;

		tmp = ((max_packet + mdwidth) * mult) + mdwidth;
		fifo_size = DIV_ROUND_UP(tmp, mdwidth);
		dep->fifo_depth = fifo_size;