drm/amd/display: USB-c DP-HDMI dongle shows garbage on Sony TV

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1951,14 +1951,33 @@ static void get_active_converter_info(
 			link->dpcd_caps.dongle_type =
 				DISPLAY_DONGLE_DP_HDMI_CONVERTER;
 
+			link->dpcd_caps.dongle_caps.dongle_type = link->dpcd_caps.dongle_type;
 			if (ds_port.fields.DETAILED_CAPS) {
 
 				union dwnstream_port_caps_byte3_hdmi
 					hdmi_caps = {.raw = det_caps[3] };
+				union dwnstream_port_caps_byte1
+					hdmi_color_caps = {.raw = det_caps[2] };
+				link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk =
+					det_caps[1] * 25000;
 
-				link->dpcd_caps.is_dp_hdmi_s3d_converter =
+				link->dpcd_caps.dongle_caps.is_dp_hdmi_s3d_converter =
 					hdmi_caps.bits.FRAME_SEQ_TO_FRAME_PACK;
+				link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_pass_through =
+					hdmi_caps.bits.YCrCr422_PASS_THROUGH;
+				link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_pass_through =
+					hdmi_caps.bits.YCrCr420_PASS_THROUGH;
+				link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_converter =
+					hdmi_caps.bits.YCrCr422_CONVERSION;
+				link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_converter =
+					hdmi_caps.bits.YCrCr420_CONVERSION;
+
+				link->dpcd_caps.dongle_caps.dp_hdmi_max_bpc =
+					hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT;
+
+				link->dpcd_caps.dongle_caps.extendedCapValid = true;
 			}
+
 			break;
 		}
 	}

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

@@ -623,7 +623,7 @@ struct dpcd_caps {
 	union sink_count sink_count;
 	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
 	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
-	bool is_dp_hdmi_s3d_converter;
+	struct dc_dongle_caps dongle_caps;
 
 	bool allow_invalid_MSA_timing_param;
 	bool panel_mode_edp;

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

@@ -255,7 +255,7 @@ enum dpcd_downstream_port_detailed_type {
 	DOWN_STREAM_DETAILED_DP_PLUS_PLUS
 };
 
-union dwnstream_port_caps_byte2 {
+union dwnstream_port_caps_byte1 {
 	struct {
 		uint8_t MAX_BITS_PER_COLOR_COMPONENT:2;
 		uint8_t RESERVED:6;
@@ -287,7 +287,11 @@ union dwnstream_port_caps_byte3_dvi {
 union dwnstream_port_caps_byte3_hdmi {
 	struct {
 		uint8_t FRAME_SEQ_TO_FRAME_PACK:1;
-		uint8_t RESERVED:7;
+		uint8_t YCrCr422_PASS_THROUGH:1;
+		uint8_t YCrCr420_PASS_THROUGH:1;
+		uint8_t YCrCr422_CONVERSION:1;
+		uint8_t YCrCr420_CONVERSION:1;
+		uint8_t RESERVED:3;
 	} bits;
 	uint8_t raw;
 };

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

@@ -338,6 +338,26 @@ enum {
 	LAYER_INDEX_PRIMARY = -1,
 };
 
+enum dpcd_downstream_port_max_bpc {
+	DOWN_STREAM_MAX_8BPC = 0,
+	DOWN_STREAM_MAX_10BPC,
+	DOWN_STREAM_MAX_12BPC,
+	DOWN_STREAM_MAX_16BPC
+};
+struct dc_dongle_caps {
+	/* dongle type (DP converter, CV smart dongle) */
+	enum display_dongle_type dongle_type;
+	bool extendedCapValid;
+	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
+	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
+	bool is_dp_hdmi_s3d_converter;
+	bool is_dp_hdmi_ycbcr422_pass_through;
+	bool is_dp_hdmi_ycbcr420_pass_through;
+	bool is_dp_hdmi_ycbcr422_converter;
+	bool is_dp_hdmi_ycbcr420_converter;
+	uint32_t dp_hdmi_max_bpc;
+	uint32_t dp_hdmi_max_pixel_clk;
+};
 /* Scaling format */
 enum scaling_transformation {
 	SCALING_TRANSFORMATION_UNINITIALIZED,