1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 797c8bcbb6a4..e4594676a07c 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1553,9 +1553,12 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                            (rdev->pdev->subsystem_device == 0x4a48)) {
                         /* Mac X800 */
                         rdev->mode_info.connector_table = CT_MAC_X800;
-                } else if (of_machine_is_compatible("PowerMac7,2") ||
-                           of_machine_is_compatible("PowerMac7,3")) {
-                        /* Mac G5 9600 */
+                } else if ((of_machine_is_compatible("PowerMac7,2") ||
+                            of_machine_is_compatible("PowerMac7,3")) &&
+                           (rdev->pdev->device == 0x4150) &&
+                           (rdev->pdev->subsystem_vendor == 0x1002) &&
+                           (rdev->pdev->subsystem_device == 0x4150)) {
+                        /* Mac G5 tower 9600 */
                         rdev->mode_info.connector_table = CT_MAC_G5_9600;
                 } else
 #endif /* CONFIG_PPC_PMAC */