drm/bridge/display-connector.c

45 	struct display_connector *conn = to_display_connector(bridge);
47 	if (conn->hpd_gpio) {
48 		if (gpiod_get_value_cansleep(conn->hpd_gpio))
54 	if (conn->bridge.ddc && drm_probe_ddc(conn->bridge.ddc))
57 	switch (conn->bridge.type) {
87 	struct display_connector *conn = to_display_connector(bridge);
89 	return drm_edid_read_ddc(connector, conn->bridge.ddc);
109 		struct drm_connector *conn = conn_state->connector;
117 		if (conn->display_info.num_bus_formats &&
118 		    conn->display_info.bus_formats)
119 			out_bus_fmts[0] = conn->display_info.bus_formats[0];
185 	struct display_connector *conn = arg;
186 	struct drm_bridge *bridge = &conn->bridge;
194 					struct display_connector *conn,
197 	conn->supply = devm_regulator_get_optional(&pdev->dev, name);
199 	if (conn->supply == ERR_PTR(-ENODEV))
200 		conn->supply = NULL;
202 	return PTR_ERR_OR_ZERO(conn->supply);
207 	struct display_connector *conn;
212 	conn = devm_kzalloc(&pdev->dev, sizeof(*conn), GFP_KERNEL);
213 	if (!conn)
216 	platform_set_drvdata(pdev, conn);
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;
283 		conn->hpd_gpio = devm_gpiod_get_optional(&pdev->dev, "hpd",
285 		if (IS_ERR(conn->hpd_gpio))
286 			return dev_err_probe(&pdev->dev, PTR_ERR(conn->hpd_gpio),
289 		conn->hpd_irq = gpiod_to_irq(conn->hpd_gpio);
291 		conn->hpd_irq = -EINVAL;
294 	if (conn->hpd_irq >= 0) {
295 		ret = devm_request_threaded_irq(&pdev->dev, conn->hpd_irq,
300 						"HPD", conn);
304 			conn->hpd_irq = -EINVAL;
316 			conn->bridge.ddc = of_get_i2c_adapter_by_node(phandle);
318 			if (!conn->bridge.ddc)
330 		ret = display_connector_get_supply(pdev, conn, "dp-pwr");
339 		conn->ddc_en = devm_gpiod_get_optional(&pdev->dev, "ddc-en",
342 		if (IS_ERR(conn->ddc_en)) {
344 			return PTR_ERR(conn->ddc_en);
347 		ret = display_connector_get_supply(pdev, conn, "hdmi-pwr");
352 	if (conn->supply) {
353 		ret = regulator_enable(conn->supply);
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
366 	if (conn->hpd_gpio)
367 		conn->bridge.ops |= DRM_BRIDGE_OP_DETECT;
368 	if (conn->hpd_irq >= 0)
369 		conn->bridge.ops |= DRM_BRIDGE_OP_HPD;
373 		drm_get_connector_type_name(conn->bridge.type),
375 		conn->bridge.ddc ? "with" : "without",
376 		conn->hpd_gpio ? "with" : "without",
377 		conn->bridge.ops);
379 	drm_bridge_add(&conn->bridge);
386 	struct display_connector *conn = platform_get_drvdata(pdev);
388 	if (conn->ddc_en)
389 		gpiod_set_value(conn->ddc_en, 0);
391 	if (conn->supply)
392 		regulator_disable(conn->supply);
394 	drm_bridge_remove(&conn->bridge);
396 	if (!IS_ERR(conn->bridge.ddc))
397 		i2c_put_adapter(conn->bridge.ddc);