drm/radeon/kms: store sink type in atom dig connector

This will be used laster when the encoder and transmitters
are set up.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/atombios_dp.c

@@ -78,8 +78,8 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
 	return true;
 }
 
-int radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clock,
-			      uint8_t ucconfig, uint8_t lane_num)
+static u8 radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clock,
+				    uint8_t ucconfig, uint8_t lane_num)
 {
 	DP_ENCODER_SERVICE_PARAMETERS args;
 	int index = GetIndexIntoMasterTable(COMMAND, DPEncoderService);
@@ -95,7 +95,7 @@ int radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clo
 	return args.ucStatus;
 }
 
-int radeon_dp_getsinktype(struct radeon_connector *radeon_connector)
+u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector)
 {
 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
 	struct drm_device *dev = radeon_connector->base.dev;

drivers/gpu/drm/radeon/radeon_connectors.c

@@ -908,13 +908,9 @@ static int radeon_dp_get_modes(struct drm_connector *connector)
 static enum drm_connector_status radeon_dp_detect(struct drm_connector *connector)
 {
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
-	struct drm_encoder *encoder = NULL;
-	struct drm_encoder_helper_funcs *encoder_funcs;
-	struct drm_mode_object *obj;
-	int i;
 	enum drm_connector_status ret = connector_status_disconnected;
-	int sink_type;
-	bool dret;
+	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+	u8 sink_type;
 
 	if (radeon_connector->edid) {
 		kfree(radeon_connector->edid);
@@ -924,8 +920,17 @@ static enum drm_connector_status radeon_dp_detect(struct drm_connector *connecto
 	sink_type = radeon_dp_getsinktype(radeon_connector);
 	if (sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
 		radeon_dp_getdpcd(radeon_connector);
+		radeon_dig_connector->dp_sink_type = sink_type;
 		ret = connector_status_connected;
+	} else {
+		radeon_i2c_do_lock(radeon_connector->ddc_bus, 1);
+		if (radeon_ddc_probe(radeon_connector)) {
+			radeon_dig_connector->dp_sink_type = sink_type;
+			ret = connector_status_connected;
+		}
+		radeon_i2c_do_lock(radeon_connector->ddc_bus, 0);
 	}
+
 	return ret;
 }
 

drivers/gpu/drm/radeon/radeon_mode.h

@@ -339,8 +339,10 @@ struct radeon_encoder {
 struct radeon_connector_atom_dig {
 	uint32_t igp_lane_info;
 	bool linkb;
+	/* displayport */
 	struct radeon_i2c_chan *dp_i2c_bus;
 	u8 dpcd[8];
+	u8 dp_sink_type;
 };
 
 struct radeon_connector {
@@ -364,7 +366,7 @@ struct radeon_framebuffer {
 	struct drm_gem_object *obj;
 };
 
-extern int radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
+extern u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
 extern void radeon_dp_getdpcd(struct radeon_connector *radeon_connector);
 extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 				uint8_t write_byte, uint8_t *read_byte);