thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2...

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>

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index c68fe1222c16aa111e6734c6aa21432461f47c76..20a41f7de76f687d39329c2f4ea58ae30dc8fc6d 100644 (file)
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -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,}
 };