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    • Nathan Sullivan's avatar
      Documentation: bindings: add doc for zynq USB · c1ceb5ff
      Nathan Sullivan authored 
      

Document the binding for the zynq specific chipidea UDC binding.

Signed-off-by: default avatarNathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
      c1ceb5ff
    • Nathan Sullivan's avatar
      usb: chipidea: add xilinx zynq platform data · 84bc70f9
      Nathan Sullivan authored 
      

Due to having hardware tx buffers less than 512 bytes in size, streaming
must be enabled on the Zynq for the udc to work at all.  Add platform data
specific to the Zynq udc, which does not set the CI_HDRC_DISABLE_STREAMING
flag.

Based on a patch by the same name from the Xilinx vendor tree.

Signed-off-by: default avatarNathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
      84bc70f9
    • Peter Chen's avatar
      usb: chipidea: udc: using the correct stall implementation · 56ffa1d1
      Peter Chen authored 
      

According to spec, there are functional and protocol stalls.

For functional stall, it is for bulk and interrupt endpoints,
below are cases for it:
- Host sends SET_FEATURE request for Set-Halt, the udc driver
needs to set stall, and return true unconditionally.
- The gadget driver may call usb_ep_set_halt to stall certain
endpoints, if there is a transfer in pending, the udc driver
should not set stall, and return -EAGAIN accordingly.
These two kinds of stall need to be cleared by host using CLEAR_FEATURE
request (Clear-Halt).

For protocol stall, it is for control endpoint, this stall will
be set if the control request has failed. This stall will be
cleared by next setup request (hardware will do it).

It fixed usbtest (drivers/usb/misc/usbtest.c) Test 13 "set/clear halt"
test failure, meanwhile, this change has been verified by
USB2 CV Compliance Test and MSC Tests.

Cc: <stable@vger.kernel.org> #3.10+
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
      56ffa1d1
  17. Sep 14, 2015
  19. Sep 13, 2015
    • Linus Torvalds's avatar
      Linux 4.3-rc1 · 6ff33f39
      Linus Torvalds authored
      6ff33f39
    • Linus Torvalds's avatar
      Merge tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris · 6917b51d
      Linus Torvalds authored 
      Pull CRIS updates from Jesper Nilsson:
 "Mostly removal of old cruft of which we can use a generic version, or
  fixes for code not commonly run in the cris port, but also additions
  to enable some good debug"

* tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: (25 commits)
  CRISv10: delete unused lib/dmacopy.c
  CRISv10: delete unused lib/old_checksum.c
  CRIS: fix switch_mm() lockdep splat
  CRISv32: enable LOCKDEP_SUPPORT
  CRIS: add STACKTRACE_SUPPORT
  CRISv32: annotate irq enable in idle loop
  CRISv32: add support for irqflags tracing
  CRIS: UAPI: use generic types.h
  CRIS: UAPI: use generic shmbuf.h
  CRIS: UAPI: use generic msgbuf.h
  CRIS: UAPI: use generic socket.h
  CRIS: UAPI: use generic sembuf.h
  CRIS: UAPI: use generic sockios.h
  CRIS: UAPI: use generic auxvec.h
  CRIS: UAPI: use generic headers via Kbuild
  CRIS: UAPI: fix elf.h export
  CRIS: don't make asm/elf.h depend on asm/user.h
  CRIS: UAPI: fix ptrace.h
  CRISv32: Squash compile warnings for axisflashmap
  CRISv32: Add GPIO driver to the default configs
  ...
      6917b51d