agp/ati: Use PCI_COMMAND instead of hard-coded 4

bjorn-helgaas · bjorn-helgaas · commit 167b1f049008 · 2014-01-07T11:37:27.000-07:00
We're accessing the PCI_COMMAND register here, so use the appropriate
#define.  The bit we're writing (1 &lt;&lt; 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 &lt;bhelgaas@google.com&gt;
diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
@@ -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);
