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| author | Matthew Garrett <mjg@redhat.com> | 2012-12-05 14:33:27 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-05 14:38:26 -0700 |
| commit | eca0d4676d8e29c209ddce0c0c1755472ffc70a6 (patch) | |
| tree | 0455ac26c96f0a383665fe353d28dbeaa3e1f14b | |
| parent | dd5fc854de5fd37adfcef8a366cd21a55aa01d3d (diff) | |
| download | lwn-eca0d4676d8e29c209ddce0c0c1755472ffc70a6.tar.gz lwn-eca0d4676d8e29c209ddce0c0c1755472ffc70a6.zip | |
PCI: Add pcibios_add_device
Platforms may want to provide architecture-specific functionality during
PCI enumeration. Add a pcibios_add_device() call that architectures can
override to do so.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
| -rw-r--r-- | drivers/pci/bus.c | 5 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 13 | ||||
| -rw-r--r-- | include/linux/pci.h | 1 |
3 files changed, 19 insertions, 0 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 6241fd05bd41..4f22fa16a3ba 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -170,6 +170,11 @@ int pci_bus_add_device(struct pci_dev *dev) int retval; pci_fixup_device(pci_fixup_final, dev); + + retval = pcibios_add_device(dev); + if (retval) + return retval; + retval = device_add(&dev->dev); if (retval) return retval; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 54858838f098..fa0ddd51a216 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1333,6 +1333,19 @@ void pcim_pin_device(struct pci_dev *pdev) dr->pinned = 1; } +/* + * pcibios_add_device - provide arch specific hooks when adding device dev + * @dev: the PCI device being added + * + * Permits the platform to provide architecture specific functionality when + * devices are added. This is the default implementation. Architecture + * implementations can override this. + */ +int __weak pcibios_add_device (struct pci_dev *dev) +{ + return 0; +} + /** * pcibios_disable_device - disable arch specific PCI resources for device dev * @dev: the PCI device to disable diff --git a/include/linux/pci.h b/include/linux/pci.h index ee2179546c63..195c2593bd31 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1592,6 +1592,7 @@ void pcibios_disable_device(struct pci_dev *dev); void pcibios_set_master(struct pci_dev *dev); int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); +int pcibios_add_device(struct pci_dev *dev); #ifdef CONFIG_PCI_MMCONFIG extern void __init pci_mmcfg_early_init(void); |