Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c3b22fe2 authored by Razmik Karapetyan's avatar Razmik Karapetyan Committed by Felipe Balbi
Browse files

usb: dwc2: Fix Control Write issue in DMA mode 



While sending zlp for DWC2_EP0_STATUS_IN EP direction was changed to IN.
Change it back to complete OUT transfer request.

This affects only on DMA mode, because DMA buffer map/unmap function is
direction sensitive.

Signed-off-by: default avatarRazmik Karapetyan <razmik@synopsys.com>
Signed-off-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 729e6574

drivers/usb/dwc2/gadget.c

+7 −0
Original line number Diff line number Diff line
@@ -2527,6 +2527,13 @@ static void dwc2_hsotg_complete_in(struct dwc2_hsotg *hsotg, 
	/* Finish ZLP handling for IN EP0 transactions */

	if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_IN) {

		dev_dbg(hsotg->dev, "zlp packet sent\n");



		/*

		 * While send zlp for DWC2_EP0_STATUS_IN EP direction was

		 * changed to IN. Change back to complete OUT transfer request

		 */

		hs_ep->dir_in = 0;



		dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);

		if (hsotg->test_mode) {

			int ret;