Merge tag 'usb-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

USB changes for v4.21

So it looks like folks are interested in dwc3 again. Almost 64% of the
changes are in dwc3 this time around with some other bits in gadget
functions and dwc2.

There are two important parts here: a. removal of the waitqueue from
dwc3's dequeue implementation, which will guarantee that gadget
functions can dequeue from any context and; b. better method for
starting isochronous transfers to avoid, as much as possible, missed
isoc frames.

Apart from these, we have the usual set of non-critical fixes and new
features all over the place.

* tag 'usb-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (56 commits)
  usb: dwc2: Fix disable all EP's on disconnect
  usb: dwc3: gadget: Disable CSP for stream OUT ep
  usb: dwc2: disable power_down on Amlogic devices
  Revert "usb: dwc3: pci: Use devm functions to get the phy GPIOs"
  USB: gadget: udc: s3c2410_udc: convert to DEFINE_SHOW_ATTRIBUTE
  usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler
  usb: dwc3: trace: add missing break statement to make compiler happy
  usb: dwc3: gadget: Report isoc transfer frame number
  usb: gadget: Introduce frame_number to usb_request
  usb: renesas_usbhs: Use SIMPLE_DEV_PM_OPS macro
  usb: renesas_usbhs: Remove dummy runtime PM callbacks
  usb: dwc2: host: use hrtimer for NAK retries
  usb: mtu3: clear SOFTCONN when clear USB3_EN if work as HS mode
  usb: mtu3: enable SETUPENDISR interrupt
  usb: mtu3: fix the issue about SetFeature(U1/U2_Enable)
  usb: mtu3: enable hardware remote wakeup from L1 automatically
  usb: mtu3: remove QMU checksum
  usb/mtu3: power down device ip at setup
  usb: dwc2: Disable power down feature on Samsung SoCs
  usb: dwc3: Correct the logic for checking TRB full in __dwc3_prepare_one_trb()
  ...

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