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path: root/drivers/pci/access.c
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Diffstat (limited to 'drivers/pci/access.c')
-rw-r--r--drivers/pci/access.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 1cc23661f79b..0857ca981fae 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -475,37 +475,33 @@ static inline int pcie_cap_version(const struct pci_dev *dev)
return pcie_caps_reg(dev) & PCI_EXP_FLAGS_VERS;
}
-static inline bool pcie_cap_has_devctl(const struct pci_dev *dev)
-{
- return true;
-}
-
static inline bool pcie_cap_has_lnkctl(const struct pci_dev *dev)
{
int type = pci_pcie_type(dev);
- return pcie_cap_version(dev) > 1 ||
+ return type == PCI_EXP_TYPE_ENDPOINT ||
+ type == PCI_EXP_TYPE_LEG_END ||
type == PCI_EXP_TYPE_ROOT_PORT ||
- type == PCI_EXP_TYPE_ENDPOINT ||
- type == PCI_EXP_TYPE_LEG_END;
+ type == PCI_EXP_TYPE_UPSTREAM ||
+ type == PCI_EXP_TYPE_DOWNSTREAM ||
+ type == PCI_EXP_TYPE_PCI_BRIDGE ||
+ type == PCI_EXP_TYPE_PCIE_BRIDGE;
}
static inline bool pcie_cap_has_sltctl(const struct pci_dev *dev)
{
int type = pci_pcie_type(dev);
- return pcie_cap_version(dev) > 1 ||
- type == PCI_EXP_TYPE_ROOT_PORT ||
- (type == PCI_EXP_TYPE_DOWNSTREAM &&
- pcie_caps_reg(dev) & PCI_EXP_FLAGS_SLOT);
+ return (type == PCI_EXP_TYPE_ROOT_PORT ||
+ type == PCI_EXP_TYPE_DOWNSTREAM) &&
+ pcie_caps_reg(dev) & PCI_EXP_FLAGS_SLOT;
}
static inline bool pcie_cap_has_rtctl(const struct pci_dev *dev)
{
int type = pci_pcie_type(dev);
- return pcie_cap_version(dev) > 1 ||
- type == PCI_EXP_TYPE_ROOT_PORT ||
+ return type == PCI_EXP_TYPE_ROOT_PORT ||
type == PCI_EXP_TYPE_RC_EC;
}
@@ -520,7 +516,7 @@ static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
case PCI_EXP_DEVCAP:
case PCI_EXP_DEVCTL:
case PCI_EXP_DEVSTA:
- return pcie_cap_has_devctl(dev);
+ return true;
case PCI_EXP_LNKCAP:
case PCI_EXP_LNKCTL:
case PCI_EXP_LNKSTA: