diff --git a/[refs] b/[refs]
index 9a2e3393994a..b819c7558a0f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: aea6a433f50cd89b9cbd10850fd0b32f961f9883
+refs/heads/master: f122392f679ebed39db08074f935d770504623eb
diff --git a/trunk/drivers/pci/quirks.c b/trunk/drivers/pci/quirks.c
index ebfc1de7579e..31f680f238c8 100644
--- a/trunk/drivers/pci/quirks.c
+++ b/trunk/drivers/pci/quirks.c
@@ -1651,6 +1651,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RD580, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RX790, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS690, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
 
diff --git a/trunk/include/linux/pci_ids.h b/trunk/include/linux/pci_ids.h
index 80c27d7bf021..f77944e432f2 100644
--- a/trunk/include/linux/pci_ids.h
+++ b/trunk/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