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PCI: Add pcibios_add_device

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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>
This commit is contained in:
Matthew Garrett 2012-12-05 14:33:27 -07:00 committed by Bjorn Helgaas
parent dd5fc854de
commit eca0d4676d
3 changed files with 19 additions and 0 deletions
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5
drivers/pci/bus.c
View File

@ -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;

13
drivers/pci/pci.c
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@ -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

1
include/linux/pci.h
View File

@ -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);