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| author | Jiang Liu <jiang.liu@huawei.com> | 2012-07-24 17:20:06 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-08-23 09:41:37 -0600 |
| commit | 59875ae489609b2267548dc85160c5f0f0c6f9d4 (patch) | |
| tree | efadf88450c3d239806b0020c2b16b56c16f598d /drivers/pci/probe.c | |
| parent | 8c0d3a02c1309eb6112d2e7c8172e8ceb26ecfca (diff) | |
| download | op-kernel-dev-59875ae489609b2267548dc85160c5f0f0c6f9d4.zip op-kernel-dev-59875ae489609b2267548dc85160c5f0f0c6f9d4.tar.gz | |
PCI/core: Use PCI Express Capability accessors
Use PCI Express Capability access functions to simplify core.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8bcc985..d8f513b 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -603,10 +603,10 @@ static void pci_set_bus_speed(struct pci_bus *bus) u32 linkcap; u16 linksta; - pci_read_config_dword(bridge, pos + PCI_EXP_LNKCAP, &linkcap); + pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap); bus->max_bus_speed = pcie_link_speed[linkcap & 0xf]; - pci_read_config_word(bridge, pos + PCI_EXP_LNKSTA, &linksta); + pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta); pcie_update_link_speed(bus, linksta); } } @@ -936,17 +936,9 @@ void set_pcie_port_type(struct pci_dev *pdev) void set_pcie_hotplug_bridge(struct pci_dev *pdev) { - int pos; - u16 reg16; u32 reg32; - pos = pci_pcie_cap(pdev); - if (!pos) - return; - pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, ®16); - if (!(reg16 & PCI_EXP_FLAGS_SLOT)) - return; - pci_read_config_dword(pdev, pos + PCI_EXP_SLTCAP, ®32); + pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, ®32); if (reg32 & PCI_EXP_SLTCAP_HPC) pdev->is_hotplug_bridge = 1; } @@ -1160,8 +1152,7 @@ int pci_cfg_space_size(struct pci_dev *dev) if (class == PCI_CLASS_BRIDGE_HOST) return pci_cfg_space_size_ext(dev); - pos = pci_pcie_cap(dev); - if (!pos) { + if (!pci_is_pcie(dev)) { pos = pci_find_capability(dev, PCI_CAP_ID_PCIX); if (!pos) goto fail; |
