From: Crane Cai <crane.cai@xxxxxxx>
Use driver to detect SMBus devices with Vendor ID AMD and class code is
SMBus.
Signed-off-by: Crane Cai <crane.cai@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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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