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drm/nouveau/dp: preserve non-pattern bits in DP_TRAINING_PATTERN_SET

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-08-05 15:56:53 +10:00
parent 2834f86864
commit 5b3eb95fd8
1 changed files with 8 additions and 1 deletions
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9
drivers/gpu/drm/nouveau/nouveau_dp.c
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@ -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 };