drm/i915: Kill intel_dp->{link_bw, rate_select}

We only need the link_bw/rate_select parameters when starting link
training, and they should be computed based on the currently active
config, so throw them out from intel_dp and just compute on demand.

Toss in an extra debug print to see rate_select in addition to link_bw,
as the latter may be 0 for eDP 1.4.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index fdb5e31..1dd2b37 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -38,7 +38,7 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
 	struct drm_atomic_state *state;
 	int bpp, i;
-	int lane_count, slots, rate;
+	int lane_count, slots;
 	struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
 	struct drm_connector *drm_connector;
 	struct intel_connector *connector, *found = NULL;
@@ -55,20 +55,11 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
 	 */
 	lane_count = drm_dp_max_lane_count(intel_dp->dpcd);
 
-	rate = intel_dp_max_link_rate(intel_dp);
-
-	if (intel_dp->num_sink_rates) {
-		intel_dp->link_bw = 0;
-		intel_dp->rate_select = intel_dp_rate_select(intel_dp, rate);
-	} else {
-		intel_dp->link_bw = drm_dp_link_rate_to_bw_code(rate);
-		intel_dp->rate_select = 0;
-	}
 
 	pipe_config->lane_count = lane_count;
 
 	pipe_config->pipe_bpp = 24;
-	pipe_config->port_clock = rate;
+	pipe_config->port_clock = intel_dp_max_link_rate(intel_dp);
 
 	state = pipe_config->base.state;