On certain platforms (e.g. ARM64) the dma_ops needs to be explicitly set to be able to do DMA allocations, so use the of_dma_configure() helper to populate the dma properties and assign an appropriate dma_ops. Signed-off-by: Rajesh Bhagat <rajesh.bhagat@xxxxxxx> Reviewed-by: Yang-Leo Li <leoyang.li@xxxxxxx> --- drivers/usb/dwc3/host.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index c679f63..4d5b783 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -17,6 +17,7 @@ #include <linux/platform_device.h> #include <linux/usb/xhci_pdriver.h> +#include <linux/of_device.h> #include "core.h" @@ -32,6 +33,9 @@ int dwc3_host_init(struct dwc3 *dwc) return -ENOMEM; } + if (IS_ENABLED(CONFIG_OF) && dwc->dev->of_node) + of_dma_configure(&xhci->dev, dwc->dev->of_node); + dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); xhci->dev.parent = dwc->dev; -- 2.6.2.198.g614a2ac -- 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
