diff options
Diffstat (limited to 'drivers/usb/host/xhci-plat.c')
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 412fe8d167cf..be5e70d2300c 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -14,6 +14,8 @@ #include <linux/platform_device.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/of.h> +#include <linux/dma-mapping.h> #include "xhci.h" @@ -104,6 +106,15 @@ static int xhci_plat_probe(struct platform_device *pdev) if (!res) return -ENODEV; + /* Initialize dma_mask and coherent_dma_mask to 32-bits */ + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; + else + dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) return -ENOMEM; @@ -211,12 +222,21 @@ static const struct dev_pm_ops xhci_plat_pm_ops = { #define DEV_PM_OPS NULL #endif /* CONFIG_PM */ +#ifdef CONFIG_OF +static const struct of_device_id usb_xhci_of_match[] = { + { .compatible = "xhci-platform" }, + { }, +}; +MODULE_DEVICE_TABLE(of, usb_xhci_of_match); +#endif + static struct platform_driver usb_xhci_driver = { .probe = xhci_plat_probe, .remove = xhci_plat_remove, .driver = { .name = "xhci-hcd", .pm = DEV_PM_OPS, + .of_match_table = of_match_ptr(usb_xhci_of_match), }, }; MODULE_ALIAS("platform:xhci-hcd"); |