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| author | Ben Skeggs <bskeggs@redhat.com> | 2011-08-05 15:56:53 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-09-20 16:11:09 +1000 |
| commit | 5b3eb95fd83861a8520a50aee517209b8c8b0505 (patch) | |
| tree | 55004cd974363d78ecf8b2f36cc41ab9c6c24ae3 /drivers/gpu/drm/nouveau/nouveau_dp.c | |
| parent | 2834f86864a10a1cbad1e0543f68b4edb2e03bc7 (diff) | |
drm/nouveau/dp: preserve non-pattern bits in DP_TRAINING_PATTERN_SET
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index 7eb841c8ddd9..d3552e766647 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -337,9 +337,16 @@ dp_set_link_config(struct drm_device *dev, struct dp_state *dp) static void dp_set_training_pattern(struct drm_device *dev, struct dp_state *dp, u8 tp) { + u8 sink_tp; + NV_DEBUG_KMS(dev, "training pattern %d\n", tp); + nv_mask(dev, NV50_SOR_DP_CTRL(dp->or, dp->link), 0x0f000000, tp << 24); - auxch_tx(dev, dp->auxch, 8, DP_TRAINING_PATTERN_SET, &tp, 1); + + auxch_tx(dev, dp->auxch, 9, DP_TRAINING_PATTERN_SET, &sink_tp, 1); + sink_tp &= ~DP_TRAINING_PATTERN_MASK; + sink_tp |= tp; + auxch_tx(dev, dp->auxch, 8, DP_TRAINING_PATTERN_SET, &sink_tp, 1); } static const u8 nv50_lane_map[] = { 16, 8, 0, 24 }; |