drm/bridge/panel.c

19 	struct drm_bridge bridge;
26 drm_bridge_to_panel_bridge(struct drm_bridge *bridge)
28 	return container_of(bridge, struct panel_bridge, bridge);
58 static int panel_bridge_attach(struct drm_bridge *bridge,
61 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
68 	if (!bridge->encoder) {
76 	ret = drm_connector_init(bridge->dev, connector,
84 	drm_panel_bridge_set_orientation(connector, bridge);
87 					  bridge->encoder);
89 	if (bridge->dev->registered) {
98 static void panel_bridge_detach(struct drm_bridge *bridge)
100 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
108 	 * drm_device pointer can only be retrieved when the bridge is attached.
114 static void panel_bridge_atomic_pre_enable(struct drm_bridge *bridge,
117 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
119 	struct drm_encoder *encoder = bridge->encoder;
134 static void panel_bridge_atomic_enable(struct drm_bridge *bridge,
137 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
139 	struct drm_encoder *encoder = bridge->encoder;
154 static void panel_bridge_atomic_disable(struct drm_bridge *bridge,
157 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
159 	struct drm_encoder *encoder = bridge->encoder;
174 static void panel_bridge_atomic_post_disable(struct drm_bridge *bridge,
177 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
179 	struct drm_encoder *encoder = bridge->encoder;
194 static int panel_bridge_get_modes(struct drm_bridge *bridge,
197 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
202 static void panel_bridge_debugfs_init(struct drm_bridge *bridge,
205 	struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
231  * @bridge: The drm_bridge to be checked.
233  * Returns true if the bridge is a panel bridge, or false otherwise.
235 bool drm_bridge_is_panel(const struct drm_bridge *bridge)
237 	return bridge->funcs == &panel_bridge_bridge_funcs;
251  * wrap that panel in the new bridge, and the result can then be
255  * with connector creation.  When done with the bridge (after
256  * drm_mode_config_cleanup() if the bridge has already been attached), then
304 	panel_bridge->bridge.funcs = &panel_bridge_bridge_funcs;
305 	panel_bridge->bridge.of_node = panel->dev->of_node;
306 	panel_bridge->bridge.ops = DRM_BRIDGE_OP_MODES;
307 	panel_bridge->bridge.type = connector_type;
309 	drm_bridge_add(&panel_bridge->bridge);
311 	return &panel_bridge->bridge;
319  * @bridge: The drm_bridge being freed.
321 void drm_panel_bridge_remove(struct drm_bridge *bridge)
325 	if (!bridge)
328 	if (bridge->funcs != &panel_bridge_bridge_funcs)
331 	panel_bridge = drm_bridge_to_panel_bridge(bridge);
333 	drm_bridge_remove(bridge);
334 	devm_kfree(panel_bridge->panel->dev, bridge);
340  * from the bridge that can be transformed to panel bridge.
343  * @bridge: The drm_bridge to be transformed to panel bridge.
348 				     struct drm_bridge *bridge)
352 	panel_bridge = drm_bridge_to_panel_bridge(bridge);
361 	struct drm_bridge **bridge = res;
363 	drm_panel_bridge_remove(*bridge);
369  * @dev: device to tie the bridge lifetime to
389  * @dev: device to tie the bridge lifetime to
404 	struct drm_bridge **ptr, *bridge;
411 	bridge = drm_panel_bridge_add_typed(panel, connector_type);
412 	if (IS_ERR(bridge)) {
414 		return bridge;
417 	bridge->pre_enable_prev_first = panel->prepare_prev_first;
419 	*ptr = bridge;
422 	return bridge;
428 	struct drm_bridge *bridge = ptr;
430 	drm_panel_bridge_remove(bridge);
438  * @drm: DRM device to tie the bridge lifetime to
448 	struct drm_bridge *bridge;
451 	bridge = drm_panel_bridge_add_typed(panel, panel->connector_type);
452 	if (IS_ERR(bridge))
453 		return bridge;
456 				       bridge);
460 	bridge->pre_enable_prev_first = panel->prepare_prev_first;
462 	return bridge;
467  * drm_panel_bridge_connector - return the connector for the panel bridge
468  * @bridge: The drm_bridge.
475 struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge)
479 	panel_bridge = drm_bridge_to_panel_bridge(bridge);
487  * devm_drm_of_get_bridge - Return next bridge in the chain
488  * @dev: device to tie the bridge lifetime to
494  * and returns the associated bridge if any, or creates and returns a
495  * drm panel bridge instance if a panel is connected.
497  * Returns a pointer to the bridge if successful, or an error pointer
504 	struct drm_bridge *bridge;
509 					  &panel, &bridge);
514 		bridge = devm_drm_panel_bridge_add(dev, panel);
516 	return bridge;
521  * drmm_of_get_bridge - Return next bridge in the chain
522  * @drm: device to tie the bridge lifetime to
528  * and returns the associated bridge if any, or creates and returns a
529  * drm panel bridge instance if a panel is connected.
531  * Returns a drmm managed pointer to the bridge if successful, or an error
538 	struct drm_bridge *bridge;
543 					  &panel, &bridge);
548 		bridge = drmm_panel_bridge_add(drm, panel);
550 	return bridge;