For xhci-hcd platform device, all the DMA parameters are not configured properly, notably dma ops for dwc3 devices. The idea here is that you pass in the parent of_node along with the child device pointer, so it would behave exactly like the parent already does. The difference is that it also handles all the other attributes besides the mask. Sriram Dash (3): usb: dwc3: host: inherit dma configuration from parent dev usb: dwc3: host: Do not use dma_set_coherent_mask usb: dwc3: host: Do not use dma_coerce_mask_and_coherent drivers/usb/chipidea/core.c | 3 --- drivers/usb/chipidea/host.c | 3 ++- drivers/usb/chipidea/udc.c | 10 +++++---- drivers/usb/core/buffer.c | 12 +++++------ drivers/usb/core/hcd.c | 48 +++++++++++++++++++++++++----------------- drivers/usb/core/usb.c | 18 ++++++++-------- drivers/usb/dwc3/core.c | 28 ++++++++++++------------ drivers/usb/dwc3/core.h | 1 + drivers/usb/dwc3/dwc3-exynos.c | 10 --------- drivers/usb/dwc3/dwc3-st.c | 1 - drivers/usb/dwc3/ep0.c | 8 +++---- drivers/usb/dwc3/gadget.c | 37 ++++++++++++++++---------------- drivers/usb/dwc3/host.c | 12 ++++------- drivers/usb/host/ehci-fsl.c | 4 ++-- drivers/usb/host/xhci-mem.c | 12 +++++------ drivers/usb/host/xhci-plat.c | 33 +++++++++++++++++++++++------ drivers/usb/host/xhci.c | 15 +++++++++---- include/linux/usb.h | 1 + include/linux/usb/hcd.h | 3 +++ 19 files changed, 144 insertions(+), 115 deletions(-) -- 2.1.0 -- 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