agp/via: fixup pci ids

add a new PCI ID and remove an old dodgy one, include the explaination
in the commented code so nobody readds later.

(davej also sent the pci id addition).

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
index 0ecc54d..7b36476 100644 (file)
--- a/drivers/char/agp/via-agp.c
+++ b/drivers/char/agp/via-agp.c
@@ -389,11 +389,20 @@ static struct agp_device_ids via_agp_device_ids[] __devinitdata =
                .device_id  = PCI_DEVICE_ID_VIA_VT3324,
                .chipset_name   = "CX700",
        },
-       /* VT3336 */
+       /* VT3336 - this is a chipset for AMD Athlon/K8 CPU. Due to K8's unique
+        * architecture, the AGP resource and behavior are different from
+        * the traditional AGP which resides only in chipset. AGP is used
+        * by 3D driver which wasn't available for the VT3336 and VT3364
+        * generation until now.  Unfortunately, by testing, VT3364 works
+        * but VT3336 doesn't. - explaination from via, just leave this as
+        * as a placeholder to avoid future patches adding it back in.
+        */
+#if 0
        {
                .device_id  = PCI_DEVICE_ID_VIA_VT3336,
                .chipset_name   = "VT3336",
        },
+#endif
        /* P4M890 */
        {
                .device_id  = PCI_DEVICE_ID_VIA_P4M890,
@@ -546,8 +555,8 @@ static const struct pci_device_id agp_via_pci_table[] = {
        ID(PCI_DEVICE_ID_VIA_3296_0),
        ID(PCI_DEVICE_ID_VIA_P4M800CE),
        ID(PCI_DEVICE_ID_VIA_VT3324),
-       ID(PCI_DEVICE_ID_VIA_VT3336),
        ID(PCI_DEVICE_ID_VIA_P4M890),
+       ID(PCI_DEVICE_ID_VIA_VT3364),
        { }
 };