Merge tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...

[linux-2.6-microblaze.git] / drivers / pci / pci.c

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1027f18..b717680 100644 (file)
--- 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)
 {
@@ -4473,6 +4474,23 @@ 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