diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 80c27d7..f77944e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -361,6 +361,7 @@
 #define PCI_DEVICE_ID_ATI_RS400_200     0x5a33
 #define PCI_DEVICE_ID_ATI_RS480         0x5950
 #define PCI_DEVICE_ID_ATI_RD580		0x5952
+#define PCI_DEVICE_ID_ATI_RX790		0x5957
 #define PCI_DEVICE_ID_ATI_RS690		0x7910
 /* ATI IXP Chipset */
 #define PCI_DEVICE_ID_ATI_IXP200_IDE	0x4349