Commit 7441c2d6 authored Dec 06, 2017 by Sriharsha Allenki

usb: dwc3: Fix incorrect PCM value for mult less than 2



For isochronous endpoints with mult less than 2, the
PCM value of the trb->size in set incorrectly.
For case of mult = 1, this is set to 0/-1 and for
mult = 0, this is set to -2.
This is because the initial mult is set to
ep->mult - 1. Fix this by setting the value of
initial value of mult to 2.

Change-Id: Ifa63d8c65564108303ce7c0d6e0cafeccf2ba47d
Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org>

parent c1c8fe5e

drivers/usb/dwc3/gadget.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -989,7 +989,7 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
		*/
		if (speed == USB_SPEED_HIGH) {
		struct usb_ep *ep = &dep->endpoint;
		unsigned int mult = ep->mult - 1;
		unsigned int mult = 2;
		unsigned int maxp;

		maxp = usb_endpoint_maxp(ep->desc) & 0x07ff;