Merge tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for 6.3-rc1.

  Nothing major in here, just lots of good development, including:

   - Thunderbolt additions for new device support and features

   - xhci driver updates and cleanups

   - USB gadget media driver updates (includes media core changes that
     were acked by the v4l2 maintainers)

   - lots of other USB gadget driver updates for new features

   - dwc3 driver updates and fixes

   - minor debugfs leak fixes

   - typec driver updates and additions

   - dt-bindings conversions to yaml

   - other small bugfixes and driver updates

  All have been in linux-next for a while with no reported issues"

* tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (237 commits)
  usb: dwc3: xilinx: Remove unused of_gpio,h
  usb: typec: pd: Add higher capability sysfs for sink PDO
  usb: typec: pd: Remove usb_suspend_supported sysfs from sink PDO
  usb: dwc3: pci: add support for the Intel Meteor Lake-M
  usb: gadget: u_ether: Don't warn in gether_setup_name_default()
  usb: gadget: u_ether: Convert prints to device prints
  usb: gadget: u_serial: Add null pointer check in gserial_resume
  usb: gadget: uvc: fix missing mutex_unlock() if kstrtou8() fails
  xhci: host: potential NULL dereference in xhci_generic_plat_probe()
  dt-bindings: usb: amlogic,meson-g12a-usb-ctrl: make G12A usb3-phy0 optional
  usb: host: fsl-mph-dr-of: reuse device_set_of_node_from_dev
  of: device: Do not ignore error code in of_device_uevent_modalias
  of: device: Ignore modalias of reused nodes
  usb: gadget: configfs: Fix set but not used variable warning
  usb: gadget: uvc: Use custom strings if available
  usb: gadget: uvc: Allow linking function to string descs
  usb: gadget: uvc: Pick up custom string descriptor IDs
  usb: gadget: uvc: Allow linking XUs to string descriptors
  usb: gadget: configfs: Attach arbitrary strings to cdev
  usb: gadget: configfs: Support arbitrary string descriptors
  ...

3 files changed, 9 insertions, 2 deletions

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 80236e7b0895..c0264d5426bf 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -133,10 +133,9 @@ static int mtu3_ep_disable(struct mtu3_ep *mep)
 {
 	struct mtu3 *mtu = mep->mtu;
 
-	mtu3_qmu_stop(mep);
-
 	/* abort all pending requests */
 	nuke(mep, -ESHUTDOWN);
+	mtu3_qmu_stop(mep);
 	mtu3_deconfig_ep(mtu, mep);
 	mtu3_gpd_ring_free(mep);
 
diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h
index 519a58301f45..ee30ae0a4b54 100644
--- a/drivers/usb/mtu3/mtu3_hw_regs.h
+++ b/drivers/usb/mtu3/mtu3_hw_regs.h
@@ -128,6 +128,7 @@
 #define TX_FIFOEMPTY		BIT(24)
 #define TX_SENTSTALL		BIT(22)
 #define TX_SENDSTALL		BIT(21)
+#define TX_FLUSHFIFO		BIT(20)
 #define TX_TXPKTRDY		BIT(16)
 #define TX_TXMAXPKTSZ_MSK	GENMASK(10, 0)
 #define TX_TXMAXPKTSZ(x)	((x) & TX_TXMAXPKTSZ_MSK)
diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c
index 2ea3157ddb6e..a2fdab8b63b2 100644
--- a/drivers/usb/mtu3/mtu3_qmu.c
+++ b/drivers/usb/mtu3/mtu3_qmu.c
@@ -388,6 +388,9 @@ void mtu3_qmu_stop(struct mtu3_ep *mep)
 	}
 	mtu3_writel(mbase, qcsr, QMU_Q_STOP);
 
+	if (mep->is_in)
+		mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_FLUSHFIFO);
+
 	ret = readl_poll_timeout_atomic(mbase + qcsr, value,
 			!(value & QMU_Q_ACTIVE), 1, 1000);
 	if (ret) {
@@ -395,6 +398,10 @@ void mtu3_qmu_stop(struct mtu3_ep *mep)
 		return;
 	}
 
+	/* flush fifo again to make sure the fifo is empty */
+	if (mep->is_in)
+		mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_FLUSHFIFO);
+
 	dev_dbg(mtu->dev, "%s's qmu stop now!\n", mep->name);
 }