diff options
Diffstat (limited to 'drivers/usb/dwc3/host.c')
| -rw-r--r-- | drivers/usb/dwc3/host.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 626d87d..f1b9827 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -17,6 +17,8 @@ #include <linux/platform_device.h> +#include <linux/of_device.h> + #include "core.h" int dwc3_host_init(struct dwc3 *dwc) @@ -73,12 +75,21 @@ int dwc3_host_init(struct dwc3 *dwc) return -ENOMEM; } - dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); + if (IS_ENABLED(CONFIG_OF) && dwc->dev->of_node) + of_dma_configure(&xhci->dev, dwc->dev->of_node); + else + dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); - xhci->dev.parent = dwc->dev; + xhci->dev.parent = dwc->dev; xhci->dev.dma_mask = dwc->dev->dma_mask; xhci->dev.dma_parms = dwc->dev->dma_parms; + /* set DMA operations */ + if (dwc->dev->of_node && of_dma_is_coherent(dwc->dev->of_node)) { + xhci->dev.archdata.dma_ops = dwc->dev->archdata.dma_ops; + dev_dbg(dwc->dev, "set dma_ops for usb\n"); + } + dwc->xhci = xhci; ret = platform_device_add_resources(xhci, dwc->xhci_resources, |