host.c

Go to the documentation of this file.

#include <linux/platform_device.h>

#include "core.h"

int dwc3_host_init(struct dwc3 *dwc)
{
    struct platform_device  *xhci;
    int         ret;

    xhci = platform_device_alloc("xhci-hcd", -1);
    if (!xhci) {
        dev_err(dwc->dev, "couldn't allocate xHCI device\n");
        ret = -ENOMEM;
        goto err0;
    }

    dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);

    xhci->dev.parent    = dwc->dev;
    xhci->dev.dma_mask  = dwc->dev->dma_mask;
    xhci->dev.dma_parms = dwc->dev->dma_parms;

    dwc->xhci = xhci;

    ret = platform_device_add_resources(xhci, dwc->xhci_resources,
                        DWC3_XHCI_RESOURCES_NUM);
    if (ret) {
        dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
        goto err1;
    }

    ret = platform_device_add(xhci);
    if (ret) {
        dev_err(dwc->dev, "failed to register xHCI device\n");
        goto err1;
    }

    return 0;

err1:
    platform_device_put(xhci);

err0:
    return ret;
}

void dwc3_host_exit(struct dwc3 *dwc)
{
    platform_device_unregister(dwc->xhci);
}