drm/radeon/kms/atom/dce3: call transmitter init on mode set

Generally this is done at post, but might not always be done
with softboot or for connectors on docking stations.

Could probably be done once when the driver loads/resumes
rather than on each mode set.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_encoders.c

@@ -722,14 +722,17 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
 	atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev);
 
 	args.v1.ucAction = action;
-
+	if (action == ATOM_TRANSMITTER_ACTION_INIT) {
+		args.v1.usInitInfo = radeon_connector->connector_object_id;
+	} else {
+		if (radeon_encoder->pixel_clock > 165000)
+			args.v1.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
+		else
+			args.v1.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
+	}
 	if (ASIC_IS_DCE32(rdev)) {
-		if (radeon_encoder->pixel_clock > 165000) {
+		if (radeon_encoder->pixel_clock > 165000)
 			args.v2.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
-			args.v2.acConfig.fDualLinkConnector = 1;
-		} else {
-			args.v2.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
-		}
 		if (dig->dig_block)
 			args.v2.acConfig.ucEncoderSel = 1;
 
@@ -754,10 +757,6 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
 		}
 	} else {
 		args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;
-		if (radeon_encoder->pixel_clock > 165000)
-			args.v1.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
-		else
-			args.v1.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
 
 		switch (radeon_encoder->encoder_id) {
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
@@ -1140,6 +1139,7 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 
 		/* setup and enable the encoder and transmitter */
 		atombios_dig_encoder_setup(encoder, ATOM_ENABLE);
+		atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_INIT);
 		atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP);
 		atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE);
 		break;