agp/ati: Use PCI_COMMAND instead of hard-coded 4
authorBjorn Helgaas <bhelgaas@google.com>
Mon, 6 Jan 2014 23:15:31 +0000 (16:15 -0700)
committerBjorn Helgaas <bhelgaas@google.com>
Tue, 7 Jan 2014 18:37:27 +0000 (11:37 -0700)
We're accessing the PCI_COMMAND register here, so use the appropriate
#define.  The bit we're writing (1 << 14) isn't defined by the PCI or PCIe
spec, so we don't have a name for it.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
drivers/char/agp/ati-agp.c

index ba83c11..18a7a6b 100644 (file)
@@ -221,8 +221,8 @@ static int ati_configure(void)
        readl(ati_generic_private.registers+ATI_GART_FEATURE_ID);       /* PCI Posting.*/
 
        /* SIGNALED_SYSTEM_ERROR @ NB_STATUS */
-       pci_read_config_dword(agp_bridge->dev, 4, &temp);
-       pci_write_config_dword(agp_bridge->dev, 4, temp | (1<<14));
+       pci_read_config_dword(agp_bridge->dev, PCI_COMMAND, &temp);
+       pci_write_config_dword(agp_bridge->dev, PCI_COMMAND, temp | (1<<14));
 
        /* Write out the address of the gatt table */
        writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE);