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path: root/drivers/pci/pci.c
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-rw-r--r--drivers/pci/pci.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1027f180792c..b717680377a9 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4072,6 +4072,7 @@ phys_addr_t pci_pio_to_address(unsigned long pio)
return address;
}
+EXPORT_SYMBOL_GPL(pci_pio_to_address);
unsigned long __weak pci_address_to_pio(phys_addr_t address)
{
@@ -4474,6 +4475,23 @@ void pci_clear_mwi(struct pci_dev *dev)
EXPORT_SYMBOL(pci_clear_mwi);
/**
+ * pci_disable_parity - disable parity checking for device
+ * @dev: the PCI device to operate on
+ *
+ * Disable parity checking for device @dev
+ */
+void pci_disable_parity(struct pci_dev *dev)
+{
+ u16 cmd;
+
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ if (cmd & PCI_COMMAND_PARITY) {
+ cmd &= ~PCI_COMMAND_PARITY;
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+ }
+}
+
+/**
* pci_intx - enables/disables PCI INTx for device dev
* @pdev: the PCI device to operate on
* @enable: boolean: whether to enable or disable PCI INTx