[0/8] usb: cdns3: improve the sg use case

Message

Peter Chen Sept. 1, 2020, 8:44 a.m. UTC

For sg use cases, there will be serveral TRBs in TD, and the short transfer
may occur during the TD, current code doesn't handle it well, improve it
through this series. Tested by Android MTP and ADB use case.

Peter Chen (8):
  usb: cdns3: gadget: using correct sg operations
  usb: cdns3: gadget: improve the dump TRB operation at
    cdns3_ep_run_transfer
  usb: cdns3: gadget: calculate TDL correctly
  usb: cdns3: gadget: add CHAIN and ISP bit for sg list use case
  usb: cdns3: gadget: handle sg list use case at completion correctly
  usb: cdns3: gadget: need to handle sg case for WA2 case
  usb: cdns3: gadget: sg_support is only for DEV_VER_V2 or above
  usb: cdns3: gadget: enlarge the TRB ring length

 drivers/usb/cdns3/gadget.c | 205 +++++++++++++++++++++++++------------
 drivers/usb/cdns3/gadget.h |  11 +-
 2 files changed, 151 insertions(+), 65 deletions(-)