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

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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>
This commit is contained in:
Dave Airlie 2009-11-26 08:55:18 +10:00
parent 54d9cb47dd
commit 5fbfce7fc9
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/radeon/atombios_dp.c
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@ -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;