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usb: dwc3: gadget: Fix PCM1 for ISOC EP with ep->mult less than 3 

For isochronous endpoints with ep->mult less than 3, PCM1 value of
trb->size in set incorrectly.
For ep->mult = 2, this is set to 0/-1 and for ep->mult = 1, this is
set to -2. This is because the initial mult is set to ep->mult - 1
instead of 2.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Manu Gautam 2017-12-06 12:49:04 +05:30 committed by Felipe Balbi
parent a0d8c4cfdf
commit ec5bb87e4e
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc3/gadget.c
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@ -912,7 +912,7 @@ static void __dwc3_prepare_one_trb(struct dwc3_ep *dep, struct dwc3_trb *trb,
*/
if (speed == USB_SPEED_HIGH) {
struct usb_ep *ep = &dep->endpoint;
unsigned int mult = ep->mult - 1;
unsigned int mult = 2;
unsigned int maxp = usb_endpoint_maxp(ep->desc);
if (length <= (2 * maxp))