Keep the link rate const at 2.7 Gpbs, lane count =4 and do not fallback on link training. See if kms_atomic_transition test passes in constant configuration
Signed-off-by: Manasi Navare <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++-- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 6 +++--- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index d6295eb20b63..070d8f83a28a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -425,6 +425,9 @@ static void intel_dp_set_common_rates(struct intel_dp *intel_dp) intel_dp->common_rates[0] = 162000; intel_dp->num_common_rates = 1; } + /* Hack for VLK-7806 testing */ + intel_dp->common_rates[0] = 270000; + intel_dp->num_common_rates = 1; } static bool intel_dp_link_params_valid(struct intel_dp *intel_dp, int link_rate, @@ -2284,8 +2287,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, limits.min_clock = 0; limits.max_clock = common_len - 1; - limits.min_lane_count = 1; - limits.max_lane_count = intel_dp_max_lane_count(intel_dp); + limits.min_lane_count = 4; + limits.max_lane_count = 4;/*intel_dp_max_lane_count(intel_dp);*/ limits.min_bpp = intel_dp_min_bpp(pipe_config); limits.max_bpp = intel_dp_compute_bpp(intel_dp, pipe_config); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index f2c8b56be9ea..0653ace2b62a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -415,12 +415,12 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) drm_dbg_kms(&dp_to_i915(intel_dp)->drm, "Link Training failed with HOBL active, not enabling it from now on"); intel_dp->hobl_failed = true; - } else if (intel_dp_get_link_train_fallback_values(intel_dp, + }/* else if (intel_dp_get_link_train_fallback_values(intel_dp, intel_dp->link_rate, intel_dp->lane_count)) { return; - } + }*/ /* Schedule a Hotplug Uevent to userspace to start modeset */ - schedule_work(&intel_connector->modeset_retry_work); + //schedule_work(&intel_connector->modeset_retry_work); } -- 2.19.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
