On Thu, Nov 13, 2014 at 12:36:09PM -0600, Mark Langsdorf wrote:

On 11/04/2014 11:12 AM, Greg KH wrote:

quoted

On Tue, Nov 04, 2014 at 10:50:33AM -0600, Mark Langsdorf wrote:

  #endif

quoted

quoted

+#ifdef CONFIG_ACPI
+static const struct acpi_device_id usb_xhci_acpi_match[] = {
+	/* APM X-Gene USB Controller */
+	{ "PNP0D10", },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+#endif

That looks like a very "generic" PNP value, are you sure it is assigned
only to this specific device?

Although this is a generic PNP device, the specific implementation
I'm testing has issues with USB3. Is there a flag or function
call that will disable the USB3 host while keeping the USB2
host?? My naive attempts in finding one mostly hung the machine.

If this is an xhci chip, there is no stand-along USB 2 controller
anymore, sorry.

greg k-h