drm/amdgpu: replace drm_detect_hdmi_monitor() with drm_display_info.is_hdmi

Once EDID is parsed, the monitor HDMI support information is available
through drm_display_info.is_hdmi. The amdgpu driver still calls
drm_detect_hdmi_monitor() to retrieve the same information, which
is less efficient. Change to drm_display_info.is_hdmi

This is a TODO task in Documentation/gpu/todo.rst
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Claudio Suarez <cssk@net-c.es>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c

@@ -108,7 +108,7 @@ int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB:
 		if (amdgpu_connector->use_digital) {
-			if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+			if (connector->display_info.is_hdmi) {
 				if (connector->display_info.bpc)
 					bpc = connector->display_info.bpc;
 			}
@@ -116,7 +116,7 @@ int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 		break;
 	case DRM_MODE_CONNECTOR_DVID:
 	case DRM_MODE_CONNECTOR_HDMIA:
-		if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+		if (connector->display_info.is_hdmi) {
 			if (connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 		}
@@ -125,7 +125,7 @@ int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 		dig_connector = amdgpu_connector->con_priv;
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
-		    drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+		    connector->display_info.is_hdmi) {
 			if (connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 		}
@@ -149,7 +149,7 @@ int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 		break;
 	}
 
-	if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+	if (connector->display_info.is_hdmi) {
 		/*
 		 * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make
 		 * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at
@@ -1180,7 +1180,7 @@ static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector
 		    (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
 		    (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B)) {
 			return MODE_OK;
-		} else if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+		} else if (connector->display_info.is_hdmi) {
 			/* HDMI 1.3+ supports max clock of 340 Mhz */
 			if (mode->clock > 340000)
 				return MODE_CLOCK_HIGH;
@@ -1472,7 +1472,7 @@ static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector
 		    (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
 			return amdgpu_atombios_dp_mode_valid_helper(connector, mode);
 		} else {
-			if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+			if (connector->display_info.is_hdmi) {
 				/* HDMI 1.3+ supports max clock of 340 Mhz */
 				if (mode->clock > 340000)
 					return MODE_CLOCK_HIGH;

drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

@@ -1364,7 +1364,7 @@ bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
 		if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
 		    ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) ||
 		     ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) &&
-		      drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) &&
+		      connector->display_info.is_hdmi &&
 		      amdgpu_display_is_hdtv_mode(mode)))) {
 			if (amdgpu_encoder->underscan_hborder != 0)
 				amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder;

drivers/gpu/drm/amd/amdgpu/amdgpu_encoders.c

@@ -222,7 +222,7 @@ bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
 	case DRM_MODE_CONNECTOR_HDMIB:
 		if (amdgpu_connector->use_digital) {
 			/* HDMI 1.3 supports up to 340 Mhz over single link */
-			if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+			if (connector->display_info.is_hdmi) {
 				if (pixel_clock > 340000)
 					return true;
 				else
@@ -244,7 +244,7 @@ bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
 			return false;
 		else {
 			/* HDMI 1.3 supports up to 340 Mhz over single link */
-			if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
+			if (connector->display_info.is_hdmi) {
 				if (pixel_clock > 340000)
 					return true;
 				else

drivers/gpu/drm/amd/amdgpu/atombios_encoders.c

@@ -469,7 +469,7 @@ int amdgpu_atombios_encoder_get_encoder_mode(struct drm_encoder *encoder)
 			if (amdgpu_connector->use_digital &&
 			    (amdgpu_connector->audio == AMDGPU_AUDIO_ENABLE))
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) &&
+			else if (connector->display_info.is_hdmi &&
 				 (amdgpu_connector->audio == AMDGPU_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else if (amdgpu_connector->use_digital)
@@ -488,7 +488,7 @@ int amdgpu_atombios_encoder_get_encoder_mode(struct drm_encoder *encoder)
 		if (amdgpu_audio != 0) {
 			if (amdgpu_connector->audio == AMDGPU_AUDIO_ENABLE)
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) &&
+			else if (connector->display_info.is_hdmi &&
 				 (amdgpu_connector->audio == AMDGPU_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else
@@ -506,7 +506,7 @@ int amdgpu_atombios_encoder_get_encoder_mode(struct drm_encoder *encoder)
 		} else if (amdgpu_audio != 0) {
 			if (amdgpu_connector->audio == AMDGPU_AUDIO_ENABLE)
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) &&
+			else if (connector->display_info.is_hdmi &&
 				 (amdgpu_connector->audio == AMDGPU_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

@@ -83,10 +83,12 @@ static int amdgpu_dm_patch_edid_caps(struct dc_edid_caps *edid_caps)
  *	void
  * */
 enum dc_edid_status dm_helpers_parse_edid_caps(
-		struct dc_context *ctx,
+		struct dc_link *link,
 		const struct dc_edid *edid,
 		struct dc_edid_caps *edid_caps)
 {
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	struct drm_connector *connector = &aconnector->base;
 	struct edid *edid_buf = (struct edid *) edid->raw_edid;
 	struct cea_sad *sads;
 	int sad_count = -1;
@@ -114,8 +116,7 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
 				  edid_caps->display_name,
 				  AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
 
-	edid_caps->edid_hdmi = drm_detect_hdmi_monitor(
-			(struct edid *) edid->raw_edid);
+	edid_caps->edid_hdmi = connector->display_info.is_hdmi;
 
 	sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads);
 	if (sad_count <= 0)
@@ -647,14 +648,8 @@ enum dc_edid_status dm_helpers_read_local_edid(
 		/* We don't need the original edid anymore */
 		kfree(edid);
 
-		/* connector->display_info will be parsed from EDID and saved
-		 * into drm_connector->display_info from edid by call stack
-		 * below:
-		 * drm_parse_ycbcr420_deep_color_info
-		 * drm_parse_hdmi_forum_vsdb
-		 * drm_parse_cea_ext
-		 * drm_add_display_info
-		 * drm_connector_update_edid_property
+		/* connector->display_info is parsed from EDID and saved
+		 * into drm_connector->display_info
 		 *
 		 * drm_connector->display_info will be used by amdgpu_dm funcs,
 		 * like fill_stream_properties_from_drm_display_mode
@@ -662,7 +657,7 @@ enum dc_edid_status dm_helpers_read_local_edid(
 		amdgpu_dm_update_connector_after_detect(aconnector);
 
 		edid_status = dm_helpers_parse_edid_caps(
-						ctx,
+						link,
 						&sink->dc_edid,
 						&sink->edid_caps);
 

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -3448,7 +3448,7 @@ struct dc_sink *dc_link_add_remote_sink(
 		goto fail_add_sink;
 
 	edid_status = dm_helpers_parse_edid_caps(
-			link->ctx,
+			link,
 			&dc_sink->dc_edid,
 			&dc_sink->edid_caps);
 

drivers/gpu/drm/amd/display/dc/dm_helpers.h

@@ -59,7 +59,7 @@ void dm_helpers_free_gpu_mem(
 		void *pvMem);
 
 enum dc_edid_status dm_helpers_parse_edid_caps(
-	struct dc_context *ctx,
+	struct dc_link *link,
 	const struct dc_edid *edid,
 	struct dc_edid_caps *edid_caps);