From 6eed521dea096fc64780820a6d1899e6c48ba4e5 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 23 Aug 2012 12:36:41 -0400 Subject: [PATCH] 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 Signed-off-by: Bjorn Helgaas --- drivers/pci/bus.c | 5 +++++ drivers/pci/pci.c | 13 +++++++++++++ include/linux/pci.h | 1 + 3 files changed, 19 insertions(+) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 4b0970b46e0b..e2f447ed8bc9 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -166,6 +166,11 @@ 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 f3ea977a5b1b..c58701268dea 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1385,6 +1385,19 @@ 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 5faa8310eec9..6a2625c63507 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1582,6 +1582,7 @@ 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); -- 2.39.5