Hello,
while playing around with gadgetfs and the ci13xxx_udc driver on mx28
I found some problems regarding locking and DMA handling. Another problem
arises when using the ci13xxx_udc driver on mx28, because it has only 8
compared to 16 endpoints as the driver expects.
With these patches g_ether and gadgetfs work on the mx28, however I was
not able to test these patches on any other hardware. Voluntaries welcome.
The driver still suffers from a segfault if a gadget driver is unloaded, but
I failed to fix it properly, the bugreport/RFC patch will follow in a
seperate mail.
Please review and consider to apply.
regards, Marc
These patches target gregkh/usb.git usb-next but also apply to any recent
v3.1-rcX.
The following changes since commit 74bdf22b5c3858b06af46f19d05c23e76c40a3bb:
USB: ftdi_sio: add PID for Sony Ericsson Urban (2011-10-04 10:27:31 -0700)
are available in the git repository at:
git.pengutronix.de:/git/mkl/linux-2.6.git for-usb-next
Marc Kleine-Budde (6):
USB: gadgetfs: gadgetfs_disconnect: fix inconsistent lock state
USB: ci13xxx_udc: fix deadlock during rmmod
USB: ci13xxx_udc: fix debug trace code
USB: ci13xxx_udc: make suspend and resume in gadget driver optional
USB: ci13xxx_udc: handle controllers with less than 16 EPs
USB: ci13xxx_msm: add module license
Michael Grzeschik (1):
USB: ci13xxx_udc: fix logic to mark request dma addresses as invalid
drivers/usb/gadget/ci13xxx_msm.c | 2 +
drivers/usb/gadget/ci13xxx_udc.c | 48 ++++++++++++++++++++++++-------------
drivers/usb/gadget/ci13xxx_udc.h | 2 +-
drivers/usb/gadget/inode.c | 5 ++-
4 files changed, 37 insertions(+), 20 deletions(-)
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