diff options
| -rw-r--r-- | drivers/gpu/drm/bridge/panel.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_panel.c | 3 |
2 files changed, 21 insertions, 4 deletions
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 7cbaba213ef6..37baa79e95c3 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -134,8 +134,8 @@ static const struct drm_bridge_funcs panel_bridge_bridge_funcs = { }; /** - * drm_panel_bridge_add - Creates a drm_bridge and drm_connector that - * just calls the appropriate functions from drm_panel. + * drm_panel_bridge_add - Creates a &drm_bridge and &drm_connector that + * just calls the appropriate functions from &drm_panel. * * @panel: The drm_panel being wrapped. Must be non-NULL. * @connector_type: The DRM_MODE_CONNECTOR_* for the connector to be @@ -149,9 +149,12 @@ static const struct drm_bridge_funcs panel_bridge_bridge_funcs = { * passed to drm_bridge_attach(). The drm_panel_prepare() and related * functions can be dropped from the encoder driver (they're now * called by the KMS helpers before calling into the encoder), along - * with connector creation. When done with the bridge, - * drm_bridge_detach() should be called as normal, then + * with connector creation. When done with the bridge (after + * drm_mode_config_cleanup() if the bridge has already been attached), then * drm_panel_bridge_remove() to free it. + * + * See devm_drm_panel_bridge_add() for an automatically manged version of this + * function. */ struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel, u32 connector_type) @@ -210,6 +213,17 @@ static void devm_drm_panel_bridge_release(struct device *dev, void *res) drm_panel_bridge_remove(*bridge); } +/** + * devm_drm_panel_bridge_add - Creates a managed &drm_bridge and &drm_connector + * that just calls the appropriate functions from &drm_panel. + * @dev: device to tie the bridge lifetime to + * @panel: The drm_panel being wrapped. Must be non-NULL. + * @connector_type: The DRM_MODE_CONNECTOR_* for the connector to be + * created. + * + * This is the managed version of drm_panel_bridge_add() which automatically + * calls drm_panel_bridge_remove() when @dev is unbound. + */ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, struct drm_panel *panel, u32 connector_type) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index c33f95e08e1b..dbd5b873e8f2 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -36,6 +36,9 @@ static LIST_HEAD(panel_list); * The DRM panel helpers allow drivers to register panel objects with a * central registry and provide functions to retrieve those panels in display * drivers. + * + * For easy integration into drivers using the &drm_bridge infrastructure please + * take look at drm_panel_bridge_add() and devm_drm_panel_bridge_add(). */ /** |