forked from Minki/linux
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: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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@ -2527,6 +2527,13 @@ static void dwc2_hsotg_complete_in(struct dwc2_hsotg *hsotg,
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/* Finish ZLP handling for IN EP0 transactions */
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if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_IN) {
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dev_dbg(hsotg->dev, "zlp packet sent\n");
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/*
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* While send zlp for DWC2_EP0_STATUS_IN EP direction was
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* changed to IN. Change back to complete OUT transfer request
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*/
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hs_ep->dir_in = 0;
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dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
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if (hsotg->test_mode) {
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int ret;
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