Message ID | 20200916065122.1776-4-koba.ko@canonical.com |
---|---|
State | New |
Headers | show |
Series | Get the extended DPCD according to the related field in the DPCD registers | expand |
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 8484b8d1688e..c273bd8d46de 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3517,9 +3517,9 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms WARN_ON(mgr->mst_primary); /* get dpcd info */ - ret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd, DP_RECEIVER_CAP_SIZE); - if (ret != DP_RECEIVER_CAP_SIZE) { - DRM_DEBUG_KMS("failed to read DPCD\n"); + ret = drm_dp_read_dpcd_caps(mgr->aux, mgr->dpcd); + if (ret < 0) { + drm_dbg_kms(mgr->dev, "failed to read DPCD, ret %d\n", ret); goto out_unlock; }