svn commit: r356632 - head/sys/dev/usb/controller

[Hans Petter Selasky]

Author: hselasky
Date: Sat Jan 11 11:38:02 2020
New Revision: 356632
URL: https://svnweb.freebsd.org/changeset/base/356632

Log:
  Revert r356598 for now because it breaks some AMD based XHCI controllers.
  
  Reported by:	jkim @
  MFC after:	1 week
  Sponsored by:	Mellanox Technologies

Modified:
  head/sys/dev/usb/controller/xhci.c

Modified: head/sys/dev/usb/controller/xhci.c
==============================================================================
--- head/sys/dev/usb/controller/xhci.c	Sat Jan 11 09:18:58 2020	(r356631)
+++ head/sys/dev/usb/controller/xhci.c	Sat Jan 11 11:38:02 2020	(r356632)
@@ -1598,26 +1598,10 @@ static usb_error_t
 xhci_cmd_stop_ep(struct xhci_softc *sc, uint8_t suspend,
     uint8_t ep_id, uint8_t slot_id)
 {
-	struct usb_page_search buf_dev;
-	struct xhci_dev_ctx *pdev;
 	struct xhci_trb trb;
 	uint32_t temp;
 
 	DPRINTF("\n");
-
-	usbd_get_page(&sc->sc_hw.devs[slot_id].device_pc, 0, &buf_dev);
-	pdev = buf_dev.buffer;
-	usb_pc_cpu_invalidate(&sc->sc_hw.devs[slot_id].device_pc);
-
-	switch (XHCI_EPCTX_0_EPSTATE_GET(pdev->ctx_ep[ep_id - 1].dwEpCtx0)) {
-	case XHCI_EPCTX_0_EPSTATE_DISABLED:
-	case XHCI_EPCTX_0_EPSTATE_STOPPED:
-		DPRINTF("Endpoint %u on slot %u is already stopped\n",
-		    ep_id, slot_id);
-		return (USB_ERR_NORMAL_COMPLETION);
-	default:
-		break;
-	}
 
 	trb.qwTrb0 = 0;
 	trb.dwTrb2 = 0;