This patch series comprises several improvements for Exynos4 USB code.
The most notable is transmission speed improvement (measured on Trats):
From 9.51 MiB/s up to 27 MiB/s
This is due to UDC driver optimizations.
Also a code cleanup for THOR gadget has been included.
Lukasz Majewski (6): usb:gadget:ums: Replace malloc calls with memalign to fix cache buffer alignment usb:udc:samsung: Remove redundant cache operation from Samsung UDC driver usb:udc:samsung: Allow burst transfers for non EP0 endpints usb:udc:samsung: Zero copy approach for data passed to Samsung's UDC driver usb:gadget:f_thor: Allocate request up to THOR_PACKET_SIZE not ep->maxpacket usb:gadget:f_thor: cosmetic: Remove debug memset
drivers/usb/gadget/f_mass_storage.c | 4 +- drivers/usb/gadget/f_thor.c | 4 +- drivers/usb/gadget/s3c_udc_otg.c | 19 +++---- drivers/usb/gadget/s3c_udc_otg_xfer_dma.c | 87 ++++++++++++----------------- include/usb/s3c_udc.h | 5 +- 5 files changed, 49 insertions(+), 70 deletions(-)