drm/bridge/display-connector.c

21 	struct drm_bridge	bridge;
31 to_display_connector(struct drm_bridge *bridge)
33 	return container_of(bridge, struct display_connector, bridge);
36 static int display_connector_attach(struct drm_bridge *bridge,
43 display_connector_detect(struct drm_bridge *bridge)
45 	struct display_connector *conn = to_display_connector(bridge);
54 	if (conn->bridge.ddc && drm_probe_ddc(conn->bridge.ddc))
57 	switch (conn->bridge.type) {
84 static const struct drm_edid *display_connector_edid_read(struct drm_bridge *bridge,
87 	struct display_connector *conn = to_display_connector(bridge);
89 	return drm_edid_read_ddc(connector, conn->bridge.ddc);
93  * Since this bridge is tied to the connector, it acts like a passthrough,
95  * previous bridge or return fallback data like done in the bridge function:
97  * This supports negotiation if the bridge chain has all bits in place.
99 static u32 *display_connector_get_output_bus_fmts(struct drm_bridge *bridge,
105 	struct drm_bridge *prev_bridge = drm_bridge_get_prev_bridge(bridge);
135  * Since this bridge is tied to the connector, it acts like a passthrough,
137  * previous bridge or MEDIA_BUS_FMT_FIXED (like select_bus_fmt_recursive())
139  * This supports negotiation if the bridge chain has all bits in place.
141 static u32 *display_connector_get_input_bus_fmts(struct drm_bridge *bridge,
148 	struct drm_bridge *prev_bridge = drm_bridge_get_prev_bridge(bridge);
186 	struct drm_bridge *bridge = &conn->bridge;
188 	drm_bridge_hpd_notify(bridge, display_connector_detect(bridge));
228 			conn->bridge.type = DRM_MODE_CONNECTOR_DVIA;
230 			conn->bridge.type = DRM_MODE_CONNECTOR_DVID;
232 			conn->bridge.type = DRM_MODE_CONNECTOR_DVII;
252 			conn->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
254 			conn->bridge.type = DRM_MODE_CONNECTOR_HDMIB;
266 		conn->bridge.type = type;
271 	conn->bridge.interlace_allowed = true;
316 			conn->bridge.ddc = of_get_i2c_adapter_by_node(phandle);
318 			if (!conn->bridge.ddc)
360 	conn->bridge.funcs = &display_connector_bridge_funcs;
361 	conn->bridge.of_node = pdev->dev.of_node;
363 	if (conn->bridge.ddc)
364 		conn->bridge.ops |= DRM_BRIDGE_OP_EDID
367 		conn->bridge.ops |= DRM_BRIDGE_OP_DETECT;
369 		conn->bridge.ops |= DRM_BRIDGE_OP_HPD;
373 		drm_get_connector_type_name(conn->bridge.type),
375 		conn->bridge.ddc ? "with" : "without",
377 		conn->bridge.ops);
379 	drm_bridge_add(&conn->bridge);
394 	drm_bridge_remove(&conn->bridge);
396 	if (!IS_ERR(conn->bridge.ddc))
397 		i2c_put_adapter(conn->bridge.ddc);