diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_dp_mst.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c index 2b98ed3e684d..257b10be5cda 100644 --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c @@ -663,12 +663,17 @@ int radeon_dp_mst_probe(struct radeon_connector *radeon_connector) { struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; + struct drm_device *dev = radeon_connector->base.dev; + struct radeon_device *rdev = dev->dev_private; int ret; u8 msg[1]; if (!radeon_mst) return 0; + if (!ASIC_IS_DCE5(rdev)) + return 0; + if (dig_connector->dpcd[DP_DPCD_REV] < 0x12) return 0; |