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

3 files changed, 21 insertions, 21 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 4da23889fea6..79e8ebc05307 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/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;
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index bce63fd329d4..449c3d8c6836 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/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);
                         }
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 13690f3eb4a4..8a171b21b453 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/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)