diff options
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 2a589b6d6ed8..01f23e30bd8f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3673,63 +3673,6 @@ static void quirk_apple_poweroff_thunderbolt(struct pci_dev *dev) DECLARE_PCI_FIXUP_SUSPEND_LATE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C, quirk_apple_poweroff_thunderbolt); - -/* - * Apple: Wait for the Thunderbolt controller to reestablish PCI tunnels - * - * During suspend the Thunderbolt controller is reset and all PCI - * tunnels are lost. The NHI driver will try to reestablish all tunnels - * during resume. We have to manually wait for the NHI since there is - * no parent child relationship between the NHI and the tunneled - * bridges. - */ -static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev) -{ - struct pci_dev *sibling = NULL; - struct pci_dev *nhi = NULL; - - if (!x86_apple_machine) - return; - if (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM) - return; - - /* - * Find the NHI and confirm that we are a bridge on the Thunderbolt - * host controller and not on a Thunderbolt endpoint. - */ - sibling = pci_get_slot(dev->bus, 0x0); - if (sibling == dev) - goto out; /* we are the downstream bridge to the NHI */ - if (!sibling || !sibling->subordinate) - goto out; - nhi = pci_get_slot(sibling->subordinate, 0x0); - if (!nhi) - goto out; - if (nhi->vendor != PCI_VENDOR_ID_INTEL - || (nhi->device != PCI_DEVICE_ID_INTEL_LIGHT_RIDGE && - nhi->device != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C && - nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_NHI && - nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI) - || nhi->class != PCI_CLASS_SYSTEM_OTHER << 8) - goto out; - pci_info(dev, "quirk: waiting for Thunderbolt to reestablish PCI tunnels...\n"); - device_pm_wait_for_dev(&dev->dev, &nhi->dev); -out: - pci_dev_put(nhi); - pci_dev_put(sibling); -} -DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_LIGHT_RIDGE, - quirk_apple_wait_for_thunderbolt); -DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C, - quirk_apple_wait_for_thunderbolt); -DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE, - quirk_apple_wait_for_thunderbolt); -DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE, - quirk_apple_wait_for_thunderbolt); #endif /* |