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authorGavin Shan <gwshan@linux.vnet.ibm.com>2014-06-19 17:22:44 +1000
committerBjorn Helgaas <bhelgaas@google.com>2014-07-03 16:39:14 -0600
commit9e33002fd1791bcab626b19301670484c1cb6d50 (patch)
treec082812cab6251a1653550a81870a0fdad0bf627 /drivers/pci
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
downloadop-kernel-dev-9e33002fd1791bcab626b19301670484c1cb6d50.zip
op-kernel-dev-9e33002fd1791bcab626b19301670484c1cb6d50.tar.gz
PCI: Make resetting secondary bus logic common
Commit d92a208d086 ("powerpc/pci: Mask linkDown on resetting PCI bus") implemented same logic (resetting PCI secondary bus by bridge's config register PCI_BRIDGE_CTL_BUS_RESET) in PCI core and arch-dependent code. To avoid the duplication, move the logic to pci_reset_secondary_bus(). That commit did not declare the pcibios_reset_secondary_bus() interface in linux/include/pci.h. Add the declaration. No functional change. Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 63a54a3..758f1d8 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3193,7 +3193,7 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
return 0;
}
-void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
+void pci_reset_secondary_bus(struct pci_dev *dev)
{
u16 ctrl;
@@ -3219,6 +3219,11 @@ void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
ssleep(1);
}
+void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
+{
+ pci_reset_secondary_bus(dev);
+}
+
/**
* pci_reset_bridge_secondary_bus - Reset the secondary bus on a PCI bridge.
* @dev: Bridge device
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