Hi Robert, When I trace the s3c-gadget driver, I found that the driver did not use DMA mode because of the 32bit align problem. Have you solved this problem ? I think just do one more time copy when meet the unalign buffer address can make the DMA mode work correctly. Does any body have more suggestions on this issue? on 2014/6/23 15:51, Robert Baldyga wrote: > Hello, > > This patchset contains fixes for dwc2 gadget driver. It touches PHY, > FIFO configuration, initialization sequence and adds many other small fixes. > > Best regards > Robert Baldyga > Samsung R&D Institute Poland > > Andrzej Pietrasiewicz (1): > usb: dwc2/gadget: Fix comment text > > Kamil Debski (3): > usb: dwc2/gadget: fix phy disable sequence > usb: dwc2/gadget: fix phy initialization sequence > usb: dwc2/gadget: move phy bus legth initialization > > Marek Szyprowski (5): > usb: dwc2/gadget: hide some not really needed debug messages > usb: dwc2/gadget: ensure that all fifos have correct memory buffers > usb: dwc2/gadget: break infinite loop in endpoint disable code > usb: dwc2/gadget: do not call disconnect method in pullup > usb: dwc2/gadget: delay enabling irq once hardware is configured > properly > > Robert Baldyga (2): > usb: dwc2/gadget: assign TX FIFO dynamically > usb: dwc2/gadget: disable clock when it's not needed > > drivers/usb/dwc2/core.h | 2 + > drivers/usb/dwc2/gadget.c | 150 ++++++++++++++++++++++++++++------------------ > 2 files changed, 93 insertions(+), 59 deletions(-) > -- -------- Roy Li @ Rockchip -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html