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drm/display: bridge-connector: attach the encoder to the created connector

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Currently all users of the bridge-connector must call
drm_connector_attach_encoder() immediately after a successful
drm_bridge_connector_init().

This is an unnecessary burden for users. Move the call to the end of
drm_bridge_connector_init() so all callers can be simplified.

Update documentation accordingly, rewording a bit the whole paragraph which
would otherwise become poorly readable due to the growing list of actions.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20260423-drm-bridge-connector-attach_encoder-v2-1-2ae6ca69b390@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
Luca Ceresoli 2026-04-23 11:16:55 +02:00
parent a5640267d6
commit dcad6dd16e
1 changed files with 9 additions and 2 deletions
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11
drivers/gpu/drm/display/drm_bridge_connector.c
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@ -773,8 +773,11 @@ static void drm_bridge_connector_put_bridges(struct drm_device *dev, void *data)
* @drm: the DRM device
* @encoder: the encoder where the bridge chain starts
*
* Allocate, initialise and register a &drm_bridge_connector with the @drm
* device. The connector is associated with a chain of bridges that starts at
* Create a new &drm_bridge_connector for the @drm device. The connector is
* allocated, initialised, registered with the @drm device and attached to
* @encoder.
*
* The connector is associated with a chain of bridges that starts at
* the @encoder. All bridges in the chain shall report bridge operation flags
* (&drm_bridge->ops) and bridge output type (&drm_bridge->type), and none of
* them may create a DRM connector directly.
@ -1055,6 +1058,10 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
IS_ENABLED(CONFIG_DRM_DISPLAY_HDCP_HELPER))
drm_connector_attach_content_protection_property(connector, true);
ret = drm_connector_attach_encoder(connector, encoder);
if (ret)
return ERR_PTR(ret);
return connector;
}
EXPORT_SYMBOL_GPL(drm_bridge_connector_init);