diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index f875183..756a9b6 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -659,9 +659,7 @@
 
 		/* Special case for SiS630 : 630S/ET is ATA_100a */
 		if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
-			u8 hostrev;
-			pci_read_config_byte(host, PCI_REVISION_ID, &hostrev);
-			if (hostrev >= 0x30)
+			if (host->revision >= 0x30)
 				chipset_family = ATA_100a;
 		}
 		pci_dev_put(host);
@@ -702,7 +700,6 @@
 			u16 trueid;
 			u8 prefctl;
 			u8 idecfg;
-			u8 sbrev;
 
 			pci_read_config_byte(dev, 0x4a, &idecfg);
 			pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
@@ -712,11 +709,10 @@
 			if (trueid == 0x5517) { /* SiS 961/961B */
 
 				lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */
-				pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
 				pci_read_config_byte(dev, 0x49, &prefctl);
 				pci_dev_put(lpc_bridge);
 
-				if (sbrev == 0x10 && (prefctl & 0x80)) {
+				if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
 					printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
 					chipset_family = ATA_133a;
 				} else {