diff options
| author | Keith Packard <keithp@keithp.com> | 2011-11-02 10:17:59 -0700 |
|---|---|---|
| committer | Eugeni Dodonov <eugeni.dodonov@intel.com> | 2012-02-08 18:23:25 -0200 |
| commit | 8661da068f7fbf195d1c7cb0667c366930301400 (patch) | |
| tree | d4158cb3e58a77758dc31a45218eb101051095b7 | |
| parent | ca69d3beecf62d8a3d5f8153f7ee28aa6a87b95b (diff) | |
drm/i915: Initiate DP link training only on the lanes we'll be using
Limit the link training setting command to the lanes needed for the
current mode. It seems vaguely possible that a monitor will try to
train the other lanes and fail in some way, so this seems like the
safer plan.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 3c3f6893f10..e7c0eac8100 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1552,8 +1552,9 @@ intel_dp_set_link_train(struct intel_dp *intel_dp, ret = intel_dp_aux_native_write(intel_dp, DP_TRAINING_LANE0_SET, - intel_dp->train_set, 4); - if (ret != 4) + intel_dp->train_set, + intel_dp->lane_count); + if (ret != intel_dp->lane_count) return false; return true; |