lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/radeon/atombios_dp.c
View File

@@ -627,11 +627,12 @@ void dp_link_train(struct drm_encoder *encoder,
/* set initial vs/emph */ /* set initial vs/emph */
memset(train_set, 0, 4); memset(train_set, 0, 4);
dp_update_dpvs_emph(radeon_connector, encoder, train_set);
udelay(400); udelay(400);
/* set training pattern 1 on the sink */ /* set training pattern 1 on the sink */
dp_set_training(radeon_connector, DP_TRAINING_PATTERN_1); dp_set_training(radeon_connector, DP_TRAINING_PATTERN_1);
dp_update_dpvs_emph(radeon_connector, encoder, train_set);
/* clock recovery loop */ /* clock recovery loop */
clock_recovery = false; clock_recovery = false;
tries = 0; tries = 0;