drm/i915: Add DSC/FEC support info to debugfs

[shantam.yashashvi at intel.com]

From: Shantam Yashashvi <shantam.yashashvi at intel.com>

Signed-off-by: Shantam Yashashvi <shantam.yashashvi at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_debugfs.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 057a8ce0c2c97..b8d3a438a34d9 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -276,6 +276,7 @@ static void intel_connector_info(struct seq_file *m,
 	struct intel_encoder *encoder =
 		to_intel_encoder(conn_state->best_encoder);
 	const struct drm_display_mode *mode;
+	struct intel_dp *intel_dp;
 
 	seq_printf(m, "[CONNECTOR:%d:%s]: status: %s\n",
 		   connector->base.id, connector->name,
@@ -301,6 +302,16 @@ static void intel_connector_info(struct seq_file *m,
 			intel_dp_mst_info(m, intel_connector);
 		else
 			intel_dp_info(m, intel_connector);
+
+		/* Add DSC and FEC Support Information for DisplayPort / eDP Connectors */
+		intel_dp = intel_attached_dp(intel_connector);
+		if (intel_dp){
+			seq_printf(m, "\tDSC_Sink_Support: %s\n",
+                str_yes_no(drm_dp_sink_supports_dsc(intel_connector->dp.dsc_dpcd)));
+			if (!intel_dp_is_edp(intel_dp))
+				    seq_printf(m, "\tFEC_Sink_Support: %s\n",
+				        str_yes_no(drm_dp_sink_supports_fec(intel_connector->dp.fec_capability)));
+		}
 		break;
 	case DRM_MODE_CONNECTOR_HDMIA:
 		if (encoder->type == INTEL_OUTPUT_HDMI ||
-- 
2.25.1