USB: OHCI: use pci_dev->revision

Commit ab1666c1364a209e6141d7c14e47a42b5f00eca2 (USB: quirk PLL power down mode)
added code that reads the revision ID from the PCI configuration register while
it's stored by PCI subsystem in the 'revision' field of 'struct pci_dev'...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 9816a28..d84d6f0 100644 (file)
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -151,7 +151,7 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd)
 {
        struct ohci_hcd *ohci = hcd_to_ohci(hcd);
        struct pci_dev *amd_smbus_dev;
-       u8 rev = 0;
+       u8 rev;
 
        if (usb_amd_find_chipset_info())
                ohci->flags |= OHCI_QUIRK_AMD_PLL;
@@ -161,7 +161,7 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd)
        if (!amd_smbus_dev)
                return 0;
 
-       pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev);
+       rev = amd_smbus_dev->revision;
 
        /* SB800 needs pre-fetch fix */
        if ((rev >= 0x40) && (rev <= 0x4f)) {