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path: root/drivers/pci/pci.c
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Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 183fddaa38b7..a4445b7210bf 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -314,24 +314,6 @@ int pci_find_ht_capability(struct pci_dev *dev, int ht_cap)
314} 314}
315EXPORT_SYMBOL_GPL(pci_find_ht_capability); 315EXPORT_SYMBOL_GPL(pci_find_ht_capability);
316 316
317void pcie_wait_pending_transaction(struct pci_dev *dev)
318{
319 int pos;
320 u16 reg16;
321
322 pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
323 if (!pos)
324 return;
325 while (1) {
326 pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &reg16);
327 if (!(reg16 & PCI_EXP_DEVSTA_TRPND))
328 break;
329 cpu_relax();
330 }
331
332}
333EXPORT_SYMBOL_GPL(pcie_wait_pending_transaction);
334
335/** 317/**
336 * pci_find_parent_resource - return resource region of parent bus of given region 318 * pci_find_parent_resource - return resource region of parent bus of given region
337 * @dev: PCI device structure contains resources to be searched 319 * @dev: PCI device structure contains resources to be searched
@@ -936,9 +918,6 @@ pci_disable_device(struct pci_dev *dev)
936 if (atomic_sub_return(1, &dev->enable_cnt) != 0) 918 if (atomic_sub_return(1, &dev->enable_cnt) != 0)
937 return; 919 return;
938 920
939 /* Wait for all transactions are finished before disabling the device */
940 pcie_wait_pending_transaction(dev);
941
942 pci_read_config_word(dev, PCI_COMMAND, &pci_command); 921 pci_read_config_word(dev, PCI_COMMAND, &pci_command);
943 if (pci_command & PCI_COMMAND_MASTER) { 922 if (pci_command & PCI_COMMAND_MASTER) {
944 pci_command &= ~PCI_COMMAND_MASTER; 923 pci_command &= ~PCI_COMMAND_MASTER;