diff -Naur c/drivers/i2c/busses/i2c-piix4.c d/drivers/i2c/busses/i2c-piix4.c
--- c/drivers/i2c/busses/i2c-piix4.c	2005-10-28 02:02:08.000000000 +0200
+++ d/drivers/i2c/busses/i2c-piix4.c	2005-11-05 21:20:02.801161750 +0100
@@ -423,6 +423,12 @@
 	  .driver_data = 3 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3),
 	  .driver_data = 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4353),
+	  .driver_data = 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4363),
+	  .driver_data = 0 },	
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4372),
+	  .driver_data = 0 },
 	{ 0, }
 };