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PCI: Add pcibios_release_device() 

Platforms may want to provide architecture-specific functionality when
a PCI device is released.  Add a pcibios_release_device() call that
architectures can override to do so.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
hifive-unleashed-5.1
Sebastian Ott 2013-06-04 19:18:14 +02:00 committed by Bjorn Helgaas
parent 9a994e8ec7
commit 6ae32c539c
3 changed files with 12 additions and 0 deletions
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10
drivers/pci/pci.c
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@ -1334,6 +1334,16 @@ int __weak pcibios_add_device (struct pci_dev *dev)
return 0;
}
/**
* pcibios_release_device - provide arch specific hooks when releasing device dev
* @dev: the PCI device being released
*
* Permits the platform to provide architecture specific functionality when
* devices are released. This is the default implementation. Architecture
* implementations can override this.
*/
void __weak pcibios_release_device(struct pci_dev *dev) {}
/**
* pcibios_disable_device - disable arch specific PCI resources for device dev
* @dev: the PCI device to disable

1
drivers/pci/probe.c
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@ -1132,6 +1132,7 @@ static void pci_release_dev(struct device *dev)
pci_dev = to_pci_dev(dev);
pci_release_capabilities(pci_dev);
pci_release_of_node(pci_dev);
pcibios_release_device(pci_dev);
kfree(pci_dev);
}

1
include/linux/pci.h
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@ -1643,6 +1643,7 @@ 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);
void pcibios_release_device(struct pci_dev *dev);
#ifdef CONFIG_PCI_MMCONFIG
void __init pci_mmcfg_early_init(void);