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 at codeaurora.org>
---
 drivers/gpu/drm/msm/dsi/dsi.c           | 10 +++++-----
 drivers/gpu/drm/msm/dsi/dsi_manager.c   |  6 +++++-
 drivers/gpu/drm/msm/edp/edp_connector.c |  2 ++
 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 28d1f95..ad50b80 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 ee3ebca..0a40f3c 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 d8812e8..b4d1b46 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:
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

Reply via email to