This series improves the performance of the uvc video gadget by adding a
zero copy routine using the scatter list interface of the gadget. The
series also increases the amount of allocated requests depending of the
speed and it also reduces the interrupt load by only trigger on every
16th request in case of super-speed.

Michael Grzeschik (5):
  usb: dwc3: gadget: set gadgets parent to the right controller
  usb: gadget: uvc: make uvc_num_requests depend on gadget speed
  usb: gadget: uvc: set v4l2_dev->dev in f_uvc
  usb: gadget: uvc: add scatter gather support
  usb: gadget: uvc: decrease the interrupt load to a quarter

 drivers/usb/dwc3/gadget.c               |   2 +-
 drivers/usb/gadget/Kconfig              |   1 +
 drivers/usb/gadget/function/f_uvc.c     |   1 +
 drivers/usb/gadget/function/uvc.h       |  15 ++-
 drivers/usb/gadget/function/uvc_queue.c |  28 ++++-
 drivers/usb/gadget/function/uvc_queue.h |   7 +-
 drivers/usb/gadget/function/uvc_video.c | 155 +++++++++++++++++++-----
 drivers/usb/gadget/legacy/Kconfig       |   1 +
 8 files changed, 175 insertions(+), 35 deletions(-)

-- 
2.30.2