From: Crane Cai <[email protected]>

Use driver to detect SMBus devices with Vendor ID AMD and class code is
SMBus.

Signed-off-by: Crane Cai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 drivers/i2c/busses/i2c-piix4.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff -puN 
drivers/i2c/busses/i2c-piix4.c~i2c-add-support-for-new-amd-smbus-devices 
drivers/i2c/busses/i2c-piix4.c
--- a/drivers/i2c/busses/i2c-piix4.c~i2c-add-support-for-new-amd-smbus-devices
+++ a/drivers/i2c/busses/i2c-piix4.c
@@ -479,6 +479,10 @@ static struct pci_device_id piix4_ids[] 
        { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS) },
        { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) },
        { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) },
+       /* AMD Generic, PCI class code and Vendor ID for SMBus */
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
+         .class = PCI_CLASS_SERIAL_SMBUS << 8,
+         .class_mask = 0xffffff },
        { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
                     PCI_DEVICE_ID_SERVERWORKS_OSB4) },
        { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
@@ -499,9 +503,10 @@ static int __devinit piix4_probe(struct 
 {
        int retval;
 
-       if ((dev->vendor == PCI_VENDOR_ID_ATI) &&
+       if (((dev->vendor == PCI_VENDOR_ID_ATI) &&
            (dev->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS) &&
-           (dev->revision >= 0x40))
+           (dev->revision >= 0x40)) ||
+           dev->vendor == PCI_VENDOR_ID_AMD)
                /* base address location etc changed in SB800 */
                retval = piix4_setup_sb800(dev, id);
        else
_
--
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