xHCI驱动在usb/host中，主要初始化xHCI。xHCI作为usb host部分的驱动。
1. xhci driver与device的匹配
usb/host/xhci-plat.c：
static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe,
.remove = xhci_plat_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "xhci-hcd",
.pm = &xhci_plat_pm_ops,
.of_match_table = of_match_ptr(usb_xhci_of_match),
.acpi_match_table = ACPI_PTR(usb_xhci_acpi_match),
},
};
MODULE_ALIAS("platform:xhci-hcd");
static int __init xhci_plat_init(void)
{
xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides);
return platform_driver_register(&usb_xhci_driver);
}
module_init(xhci_plat_init);
从usb_xhci_driver可以看出有两种匹配方式去执行xhci_plat_probe：
1.1 driver.name
platform_driver.driver.name
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