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path: root/drivers/pci/quirks.c
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Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c57
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
/*