select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
select DRM_GEM_CMA_HELPER
+ select DRM_BRIDGE
+ select DRM_PANEL_BRIDGE
select VIDEOMODE_HELPERS
select BACKLIGHT_CLASS_DEVICE
select BACKLIGHT_LCD_SUPPORT
int tilcdc_attach_external_device(struct drm_device *ddev)
{
struct tilcdc_drm_private *priv = ddev->dev_private;
- struct device_node *remote_node;
struct drm_bridge *bridge;
+ struct drm_panel *panel;
int ret;
- remote_node = of_graph_get_remote_node(ddev->dev->of_node, 0, 0);
- if (!remote_node)
+ ret = drm_of_find_panel_or_bridge(ddev->dev->of_node, 0, 0,
+ &panel, &bridge);
+ if (ret == -ENODEV)
return 0;
-
- bridge = of_drm_find_bridge(remote_node);
- of_node_put(remote_node);
- if (!bridge)
- return -EPROBE_DEFER;
+ else if (ret)
+ return ret;
priv->external_encoder = devm_kzalloc(ddev->dev,
sizeof(*priv->external_encoder),
return ret;
}
+ if (panel) {
+ bridge = devm_drm_panel_bridge_add(ddev->dev, panel,
+ DRM_MODE_CONNECTOR_DPI);
+ if (IS_ERR(bridge)) {
+ ret = PTR_ERR(bridge);
+ goto err_encoder_cleanup;
+ }
+ }
+
ret = tilcdc_attach_bridge(ddev, bridge);
if (ret)
- drm_encoder_cleanup(priv->external_encoder);
+ goto err_encoder_cleanup;
+
+ return 0;
+err_encoder_cleanup:
+ drm_encoder_cleanup(priv->external_encoder);
return ret;
}