drm/msm: Attach assigned encoder to eDP and DSI connectors

drm_mode_connector_attach_encoder() function call is missing
during eDP and DSI connector initialization. As a result,
no encoder is returned by DRM_IOCTL_MODE_GETCONNECTOR system
call. This change is to fix this issue.

Signed-off-by: Hai Li <hali@codeaurora.org>

3 files changed, 12 insertions, 6 deletions

diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 28d1f95a90cc..ad50b80225f5 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -177,6 +177,11 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
                 goto fail;
         }
 
+        for (i = 0; i < MSM_DSI_ENCODER_NUM; i++) {
+                encoders[i]->bridge = msm_dsi->bridge;
+                msm_dsi->encoders[i] = encoders[i];
+        }
+
         msm_dsi->connector = msm_dsi_manager_connector_init(msm_dsi->id);
         if (IS_ERR(msm_dsi->connector)) {
                 ret = PTR_ERR(msm_dsi->connector);
@@ -185,11 +190,6 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
                 goto fail;
         }
 
-        for (i = 0; i < MSM_DSI_ENCODER_NUM; i++) {
-                encoders[i]->bridge = msm_dsi->bridge;
-                msm_dsi->encoders[i] = encoders[i];
-        }
-
         priv->bridges[priv->num_bridges++]       = msm_dsi->bridge;
         priv->connectors[priv->num_connectors++] = msm_dsi->connector;
 
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index ee3ebcaa33f5..0a40f3c64e8b 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -462,7 +462,7 @@ struct drm_connector *msm_dsi_manager_connector_init(u8 id)
         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
         struct drm_connector *connector = NULL;
         struct dsi_connector *dsi_connector;
-        int ret;
+        int ret, i;
 
         dsi_connector = devm_kzalloc(msm_dsi->dev->dev,
                                 sizeof(*dsi_connector), GFP_KERNEL);
@@ -495,6 +495,10 @@ struct drm_connector *msm_dsi_manager_connector_init(u8 id)
         if (ret)
                 goto fail;
 
+        for (i = 0; i < MSM_DSI_ENCODER_NUM; i++)
+                drm_mode_connector_attach_encoder(connector,
+                                                msm_dsi->encoders[i]);
+
         return connector;
 
 fail:
diff --git a/drivers/gpu/drm/msm/edp/edp_connector.c b/drivers/gpu/drm/msm/edp/edp_connector.c
index d8812e84da54..b4d1b469862a 100644
--- a/drivers/gpu/drm/msm/edp/edp_connector.c
+++ b/drivers/gpu/drm/msm/edp/edp_connector.c
@@ -151,6 +151,8 @@ struct drm_connector *msm_edp_connector_init(struct msm_edp *edp)
         if (ret)
                 goto fail;
 
+        drm_mode_connector_attach_encoder(connector, edp->encoder);
+
         return connector;
 
 fail: