drm/radeon/kms: avoid oops on mac r4xx cards

[net-next-2.6.git] / drivers / gpu / drm / radeon / radeon_asic.c

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 87f7e2cc52d4ef81be592d50891769740d9bf4e8..646f96f97c77d8538919325be4bde664a7f3df8b 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -780,6 +780,13 @@ int radeon_asic_init(struct radeon_device *rdev)
        case CHIP_R423:
        case CHIP_RV410:
                rdev->asic = &r420_asic;
+               /* handle macs */
+               if (rdev->bios == NULL) {
+                       rdev->asic->get_engine_clock = &radeon_legacy_get_engine_clock;
+                       rdev->asic->set_engine_clock = &radeon_legacy_set_engine_clock;
+                       rdev->asic->get_memory_clock = &radeon_legacy_get_memory_clock;
+                       rdev->asic->set_memory_clock = NULL;
+               }
                break;
        case CHIP_RS400:
        case CHIP_RS480: