Merge tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the "big" set of USB and Thunderbolt driver changes for
  5.18-rc1. For the most part it's been a quiet development cycle for
  the USB core, but there are the usual "hot spots" of development
  activity.

  Included in here are:

   - Thunderbolt driver updates:
       - fixes for devices without displayport adapters
       - lane bonding support and improvements
       - other minor changes based on device testing

   - dwc3 gadget driver changes.

     It seems this driver will never be finished given that the IP core
     is showing up in zillions of new devices and each implementation
     decides to do something different with it...

   - uvc gadget driver updates as more devices start to use and rely on
     this hardware as well

   - usb_maxpacket() api changes to remove an unneeded and unused
     parameter.

   - usb-serial driver device id updates and small cleanups

   - typec cleanups and fixes based on device testing

   - device tree updates for usb properties

   - lots of other small fixes and driver updates.

  All of these have been in linux-next for weeks with no reported
  problems"

* tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
  USB: new quirk for Dell Gen 2 devices
  usb: dwc3: core: Add error log when core soft reset failed
  usb: dwc3: gadget: Move null pinter check to proper place
  usb: hub: Simplify error and success path in port_over_current_notify
  usb: cdns3: allocate TX FIFO size according to composite EP number
  usb: dwc3: Fix ep0 handling when getting reset while doing control transfer
  usb: Probe EHCI, OHCI controllers asynchronously
  usb: isp1760: Fix out-of-bounds array access
  xhci: Don't defer primary roothub registration if there is only one roothub
  USB: serial: option: add Quectel BG95 modem
  USB: serial: pl2303: fix type detection for odd device
  xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
  xhci: Remove quirk for over 10 year old evaluation hardware
  xhci: prevent U2 link power state if Intel tier policy prevented U1
  xhci: use generic command timer for stop endpoint commands.
  usb: host: xhci-plat: omit shared hcd if either root hub has no ports
  usb: host: xhci-plat: prepare operation w/o shared hcd
  usb: host: xhci-plat: create shared hcd after having added main hcd
  xhci: prepare for operation w/o shared hcd
  xhci: factor out parts of xhci_gen_setup()
  ...

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 1064be5518f6..5d642660fd15 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -218,7 +218,7 @@ out:
 	return ret;
 }
 
-static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
+void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
 {
 	struct dwc3_ep		*dep;
 
@@ -813,7 +813,7 @@ static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
 	int ret = -EINVAL;
 	u32 len;
 
-	if (!dwc->gadget_driver)
+	if (!dwc->gadget_driver || !dwc->connected)
 		goto out;
 
 	trace_dwc3_ctrl_req(ctrl);
@@ -1080,6 +1080,7 @@ void dwc3_ep0_send_delayed_status(struct dwc3 *dwc)
 	unsigned int direction = !dwc->ep0_expect_in;
 
 	dwc->delayed_status = false;
+	dwc->clear_stall_protocol = 0;
 
 	if (dwc->ep0state != EP0_STATUS_PHASE)
 		return;
@@ -1087,13 +1088,18 @@ void dwc3_ep0_send_delayed_status(struct dwc3 *dwc)
 	__dwc3_ep0_do_control_status(dwc, dwc->eps[direction]);
 }
 
-static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
+void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 	u32			cmd;
 	int			ret;
 
-	if (!dep->resource_index)
+	/*
+	 * For status/DATA OUT stage, TRB will be queued on ep0 out
+	 * endpoint for which resource index is zero. Hence allow
+	 * queuing ENDXFER command for ep0 out endpoint.
+	 */
+	if (!dep->resource_index && dep->number)
 		return;
 
 	cmd = DWC3_DEPCMD_ENDTRANSFER;