Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: use hardcoded dig encoder to transmitter mapping for DCE4.1
  drm/radeon/kms: fix dp_detect handling for DP bridge chips
  drm/radeon/kms: retry aux transactions if there are status flags

drivers/gpu/drm/radeon/atombios_dp.c

@@ -129,7 +129,9 @@ static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector,
 	for (retry = 0; retry < 4; retry++) {
 		ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
 					    msg, msg_bytes, NULL, 0, delay, &ack);
-		if (ret < 0)
+		if (ret == -EBUSY)
+			continue;
+		else if (ret < 0)
 			return ret;
 		if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
 			return send_bytes;
@@ -160,7 +162,9 @@ static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector,
 	for (retry = 0; retry < 4; retry++) {
 		ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
 					    msg, msg_bytes, recv, recv_bytes, delay, &ack);
-		if (ret < 0)
+		if (ret == -EBUSY)
+			continue;
+		else if (ret < 0)
 			return ret;
 		if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
 			return ret;
@@ -236,7 +240,9 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 	for (retry = 0; retry < 4; retry++) {
 		ret = radeon_process_aux_ch(auxch,
 					    msg, msg_bytes, reply, reply_bytes, 0, &ack);
-		if (ret < 0) {
+		if (ret == -EBUSY)
+			continue;
+		else if (ret < 0) {
 			DRM_DEBUG_KMS("aux_ch failed %d\n", ret);
 			return ret;
 		}

drivers/gpu/drm/radeon/radeon_connectors.c

@@ -1303,23 +1303,14 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 		/* get the DPCD from the bridge */
 		radeon_dp_getdpcd(radeon_connector);
 
-		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
-			ret = connector_status_connected;
-		else {
-			/* need to setup ddc on the bridge */
-			if (encoder)
-				radeon_atom_ext_encoder_setup_ddc(encoder);
+		if (encoder) {
+			/* setup ddc on the bridge */
+			radeon_atom_ext_encoder_setup_ddc(encoder);
 			if (radeon_ddc_probe(radeon_connector,
-					     radeon_connector->requires_extended_probe))
+					     radeon_connector->requires_extended_probe)) /* try DDC */
 				ret = connector_status_connected;
-		}
-
-		if ((ret == connector_status_disconnected) &&
-		    radeon_connector->dac_load_detect) {
-			struct drm_encoder *encoder = radeon_best_single_encoder(connector);
-			struct drm_encoder_helper_funcs *encoder_funcs;
-			if (encoder) {
-				encoder_funcs = encoder->helper_private;
+			else if (radeon_connector->dac_load_detect) { /* try load detection */
+				struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
 				ret = encoder_funcs->detect(encoder, connector);
 			}
 		}

drivers/gpu/drm/radeon/radeon_encoders.c

@@ -1755,9 +1755,12 @@ static int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder)
 	/* DCE4/5 */
 	if (ASIC_IS_DCE4(rdev)) {
 		dig = radeon_encoder->enc_priv;
-		if (ASIC_IS_DCE41(rdev))
-			return radeon_crtc->crtc_id;
-		else {
+		if (ASIC_IS_DCE41(rdev)) {
+			if (dig->linkb)
+				return 1;
+			else
+				return 0;
+		} else {
 			switch (radeon_encoder->encoder_id) {
 			case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
 				if (dig->linkb)