diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 74a657ae131a..9d8132dd4cc5 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -66,7 +66,6 @@ #include "intel_panel.h" #include "intel_pps.h" #include "intel_psr.h" -#include "intel_sideband.h" #include "intel_tc.h" #include "intel_vdsc.h" #include "intel_vrr.h" @@ -140,6 +139,9 @@ static void intel_dp_set_sink_rates(struct intel_dp *intel_dp) return; } + /* + * Sink rates for 8b/10b. + */ max_rate = drm_dp_bw_code_to_link_rate(intel_dp->dpcd[DP_MAX_LINK_RATE]); max_lttpr_rate = drm_dp_lttpr_max_link_rate(intel_dp->lttpr_common_caps); if (max_lttpr_rate) @@ -163,6 +165,21 @@ static void intel_dp_set_sink_rates(struct intel_dp *intel_dp) drm_dp_dpcd_readb(&intel_dp->aux, DP_128B132B_SUPPORTED_LINK_RATES, &uhbr_rates); + if (drm_dp_lttpr_count(intel_dp->lttpr_common_caps)) { + /* We have a repeater */ + if (intel_dp->lttpr_common_caps[0] >= 0x20 && + intel_dp->lttpr_common_caps[DP_MAIN_LINK_CHANNEL_CODING_PHY_REPEATER - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV] & + DP_PHY_REPEATER_128B132B_SUPPORTED) { + /* Repeater supports 128b/132b, valid UHBR rates */ + uhbr_rates &= intel_dp->lttpr_common_caps[DP_PHY_REPEATER_128B132B_RATES - + DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]; + } else { + /* Does not support 128b/132b */ + uhbr_rates = 0; + } + } + if (uhbr_rates & DP_UHBR10) intel_dp->sink_rates[i++] = 1000000; if (uhbr_rates & DP_UHBR13_5) @@ -2649,7 +2666,7 @@ intel_dp_can_mst(struct intel_dp *intel_dp) struct drm_i915_private *i915 = dp_to_i915(intel_dp); return i915->params.enable_dp_mst && - intel_dp->can_mst && + intel_dp_mst_source_support(intel_dp) && drm_dp_read_mst_cap(&intel_dp->aux, intel_dp->dpcd); } @@ -2664,10 +2681,10 @@ intel_dp_configure_mst(struct intel_dp *intel_dp) drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] MST support: port: %s, sink: %s, modparam: %s\n", encoder->base.base.id, encoder->base.name, - yesno(intel_dp->can_mst), yesno(sink_can_mst), + yesno(intel_dp_mst_source_support(intel_dp)), yesno(sink_can_mst), yesno(i915->params.enable_dp_mst)); - if (!intel_dp->can_mst) + if (!intel_dp_mst_source_support(intel_dp)) return; intel_dp->is_mst = sink_can_mst && @@ -5067,7 +5084,7 @@ void intel_dp_mst_suspend(struct drm_i915_private *dev_priv) intel_dp = enc_to_intel_dp(encoder); - if (!intel_dp->can_mst) + if (!intel_dp_mst_source_support(intel_dp)) continue; if (intel_dp->is_mst) @@ -5091,7 +5108,7 @@ void intel_dp_mst_resume(struct drm_i915_private *dev_priv) intel_dp = enc_to_intel_dp(encoder); - if (!intel_dp->can_mst) + if (!intel_dp_mst_source_support(intel_dp)) continue; ret = drm_dp_mst_topology_mgr_resume(&intel_dp->mst_mgr, |