[PATCH 09/11] drm/i915/dp: don't call the link parameters sink parameters

[Jani Nikula]

If we modify these on the fly depending on the link conditions, don't
pretend they are sink properties.

Some link vs. sink confusion still remains, but we'll take care of them
in follow-up patches.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c  | 23 +++++++++++------------
 drivers/gpu/drm/i915/intel_drv.h |  8 ++++----
 2 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index ad62effafaed..8c9049fa5d2c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -170,7 +170,7 @@ static u8 intel_dp_max_lane_count(struct intel_dp *intel_dp)
 	u8 source_max, sink_max;
 
 	source_max = intel_dig_port->max_lanes;
-	sink_max = intel_dp->max_sink_lane_count;
+	sink_max = intel_dp->max_link_lane_count;
 
 	return min(source_max, sink_max);
 }
@@ -323,11 +323,11 @@ int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 				   intel_dp->num_common_rates,
 				   link_rate);
 	if (index > 0) {
-		intel_dp->max_sink_link_rate = intel_dp->common_rates[index - 1];
-		intel_dp->max_sink_lane_count = lane_count;
+		intel_dp->max_link_rate = intel_dp->common_rates[index - 1];
+		intel_dp->max_link_lane_count = lane_count;
 	} else if (lane_count > 1) {
-		intel_dp->max_sink_link_rate = intel_dp_max_sink_rate(intel_dp);
-		intel_dp->max_sink_lane_count = lane_count >> 1;
+		intel_dp->max_link_rate = intel_dp_max_sink_rate(intel_dp);
+		intel_dp->max_link_lane_count = lane_count >> 1;
 	} else {
 		DRM_ERROR("Link Training Unsuccessful\n");
 		return -1;
@@ -1562,8 +1562,7 @@ intel_dp_max_link_rate(struct intel_dp *intel_dp)
 {
 	int len;
 
-	len = intel_dp_common_len_rate_limit(intel_dp,
-					     intel_dp->max_sink_link_rate);
+	len = intel_dp_common_len_rate_limit(intel_dp, intel_dp->max_link_rate);
 	if (WARN_ON(len <= 0))
 		return 162000;
 
@@ -1633,7 +1632,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 	uint8_t link_bw, rate_select;
 
 	common_len = intel_dp_common_len_rate_limit(intel_dp,
-						    intel_dp->max_sink_link_rate);
+						    intel_dp->max_link_rate);
 
 	/* No common link rates between source and sink */
 	WARN_ON(common_len <= 0);
@@ -4529,11 +4528,11 @@ intel_dp_long_pulse(struct intel_connector *intel_connector)
 		      yesno(intel_dp_source_supports_hbr2(intel_dp)),
 		      yesno(drm_dp_tps3_supported(intel_dp->dpcd)));
 
-	/* Set the max lane count for sink */
-	intel_dp->max_sink_lane_count = drm_dp_max_lane_count(intel_dp->dpcd);
+	/* Set the max lane count for link */
+	intel_dp->max_link_lane_count = drm_dp_max_lane_count(intel_dp->dpcd);
 
-	/* Set the max link rate for sink */
-	intel_dp->max_sink_link_rate = intel_dp_max_sink_rate(intel_dp);
+	/* Set the max link rate for link */
+	intel_dp->max_link_rate = intel_dp_max_sink_rate(intel_dp);
 
 	intel_dp_print_rates(intel_dp);
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a33691b3500b..240f3cebe920 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -924,10 +924,10 @@ struct intel_dp {
 	/* intersection of source and sink rates */
 	int num_common_rates;
 	int common_rates[DP_MAX_SUPPORTED_RATES];
-	/* Max lane count for the sink as per DPCD registers */
-	uint8_t max_sink_lane_count;
-	/* Max link BW for the sink as per DPCD registers */
-	int max_sink_link_rate;
+	/* Max lane count for the current link */
+	int max_link_lane_count;
+	/* Max rate for the current link */
+	int max_link_rate;
 	/* sink or branch descriptor */
 	struct intel_dp_desc desc;
 	struct drm_dp_aux aux;
-- 
2.1.4