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drm/tegra: dp: Track link capabilities alongside settings

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Store capabilities in max_* fields and add separate fields for the
currently selected settings.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2015-07-21 16:33:48 +02:00
parent 1abd6b3304
commit c728e2d4a6
4 changed files with 39 additions and 28 deletions
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8
drivers/gpu/drm/tegra/dpaux.c
View file

@ -849,14 +849,14 @@ int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
if (tp == DP_TRAINING_PATTERN_DISABLE)
return 0;
for (i = 0; i < link->num_lanes; i++)
for (i = 0; i < link->lanes; i++)
values[i] = DP_TRAIN_MAX_PRE_EMPHASIS_REACHED |
DP_TRAIN_PRE_EMPH_LEVEL_0 |
DP_TRAIN_MAX_SWING_REACHED |
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
err = drm_dp_dpcd_write(aux, DP_TRAINING_LANE0_SET, values,
link->num_lanes);
link->lanes);
if (err < 0)
return err;
@ -868,13 +868,13 @@ int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
switch (tp) {
case DP_TRAINING_PATTERN_1:
if (!drm_dp_clock_recovery_ok(status, link->num_lanes))
if (!drm_dp_clock_recovery_ok(status, link->lanes))
return -EAGAIN;
break;
case DP_TRAINING_PATTERN_2:
if (!drm_dp_channel_eq_ok(status, link->num_lanes))
if (!drm_dp_channel_eq_ok(status, link->lanes))
return -EAGAIN;
break;