drm/radeon/kms: make displayport work by reorganising vsemph setup.

This fix reorganises the initial DP link training slightly, and
actually makes DP work under kms here.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 65c82395c8e0..28741d40bf66 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -627,11 +627,12 @@ void dp_link_train(struct drm_encoder *encoder,
 
         /* set initial vs/emph */
         memset(train_set, 0, 4);
-        dp_update_dpvs_emph(radeon_connector, encoder, train_set);
         udelay(400);
         /* set training pattern 1 on the sink */
         dp_set_training(radeon_connector, DP_TRAINING_PATTERN_1);
 
+        dp_update_dpvs_emph(radeon_connector, encoder, train_set);
+
         /* clock recovery loop */
         clock_recovery = false;
         tries = 0;