diff options
| author | Shubhangi Shrivastava <shubhangi.shrivastava@intel.com> | 2015-10-14 14:56:49 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-17 16:09:45 +0100 |
| commit | 14631e9d740a2353c4b5734716c84a84e0b1c075 (patch) | |
| tree | 2a60d7910eb7b7adde4384e736d117057aba12cf /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 4df6960e0960387d4d3b5085f6639ec14a1f76b7 (diff) | |
| download | linux-14631e9d740a2353c4b5734716c84a84e0b1c075.tar.bz2 | |
drm/i915: force link training when requested by Sink
Compliance test 4.3.1.11 requires source to perform link training
always if the automated test requests for it. This patch
enforces this requirement.
Signed-off-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Shubhangi Shrivastava <shubhangi.shrivastava@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 92504fce53ae..e35a0b8284e5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4316,7 +4316,9 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); } - if (!drm_dp_channel_eq_ok(link_status, intel_dp->lane_count)) { + /* if link training is requested we should perform it always */ + if ((intel_dp->compliance_test_type == DP_TEST_LINK_TRAINING) || + (!drm_dp_channel_eq_ok(link_status, intel_dp->lane_count))) { DRM_DEBUG_KMS("%s: channel EQ not ok, retraining\n", intel_encoder->base.name); intel_dp_start_link_train(intel_dp); |