[AGP] VIA VT8235/P4X400 GART support

(based upon 2.4 patch from Richard Baverstock <beaver@gto.net>)

drivers/char/agp/via-agp.c

@@ -202,6 +202,11 @@ static struct agp_device_ids via_agp_device_ids[] __initdata =
 		.chipset	= VIA_VT8605,
 		.chipset_name	= "Apollo ProSavage PM133"
 	},
+	{
+		.device_id	= PCI_DEVICE_ID_VIA_8235_0,
+		.chipset	= VIA_P4X400,
+		.chipset_name	= "P4X400"
+	},
 	{ }, /* dummy final entry, always present */
 };
 

include/linux/agp_backend.h

@@ -63,6 +63,7 @@ enum chipset_type {
 	VIA_APOLLO_KT400_3,
 	VIA_APOLLO_PRO_266,
 	VIA_VT8605,
+	VIA_P4X400,
 	SIS_GENERIC,
 	AMD_GENERIC,
 	AMD_IRONGATE,

include/linux/pci_ids.h

@@ -1092,6 +1092,7 @@
 #define PCI_DEVICE_ID_VIA_8233C_0	0x3109
 #define PCI_DEVICE_ID_VIA_8361		0x3112 
 #define PCI_DEVICE_ID_VIA_8233A		0x3147
+#define PCI_DEVICE_ID_VIA_8235_0	0x3168
 #define PCI_DEVICE_ID_VIA_8235		0x3177
 #define PCI_DEVICE_ID_VIA_8377_0	0x3189
 #define PCI_DEVICE_ID_VIA_86C100A	0x6100