thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2...
authorKnuth Posern <knuth@posern.org>
Sun, 20 Sep 2015 19:25:22 +0000 (21:25 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 20 Sep 2015 22:20:11 +0000 (15:20 -0700)
The pci device ids listed in the thunderbolt driver are to restrictive,
which prevents the driver from being loaded on recent Apple MacBooks
using a thunderbolt 2 controller. In particular this prevented any
hot-plugging functionality for thunderbolt based ethernet dongles
(i.e. Apples thunderbolt gigabit ethernet broadcom tg3 based dongle
Model A1433 EMC 2590).

Changing the subvendor and subdevice to PCI_ANY_ID the thunderbolt driver
loads and binds to the pci device 07:00.0 System peripheral:
Intel Corporation Device 156c which is the thunderbolt 2 controller on
the MacBookPro12,1.

Successfully tested on MacBookPro12,1. With the patch the thunderbolt
module gets now loaded on boot. And it provides hot-plugging support both
for a cold-plugged and a warm-plugged ethernet dongle.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Acked-by: Knuth Posern <knuth@posern.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/thunderbolt/nhi.c

index c68fe1222c16aa111e6734c6aa21432461f47c76..20a41f7de76f687d39329c2f4ea58ae30dc8fc6d 100644 (file)
@@ -643,7 +643,7 @@ static struct pci_device_id nhi_ids[] = {
        {
                .class = PCI_CLASS_SYSTEM_OTHER << 8, .class_mask = ~0,
                .vendor = PCI_VENDOR_ID_INTEL, .device = 0x156c,
-               .subvendor = 0x2222, .subdevice = 0x1111,
+               .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID,
        },
        { 0,}
 };