PCI: Add pcibios_pm_ops for optional arch-specific hibernate functionality
Platforms may want to provide architecture-specific functionality when
a PCI device is doing a hibernate transition. Add a weak symbol
pcibios_pm_ops that architectures can override to do so.
[bhelgaas: fold in return value checks from v2 patch]
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0fd1f15..89ed123 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1648,6 +1648,10 @@
int pcibios_add_device(struct pci_dev *dev);
void pcibios_release_device(struct pci_dev *dev);
+#ifdef CONFIG_HIBERNATE_CALLBACKS
+extern struct dev_pm_ops pcibios_pm_ops;
+#endif
+
#ifdef CONFIG_PCI_MMCONFIG
void __init pci_mmcfg_early_init(void);
void __init pci_mmcfg_late_init(void);