drm/bridge: ti-tfp410: Set connector type based on DT connector node

The TI TFP410 is a DVI encoder, not a full HDMI encoder. Its output can
be routed to a DVI-D connector, even if in many cases embedded systems
will use an HDMI connector to carry the DVI signals.

Instead of hardcoding the connector type to HDMI, retrieve the connector
type from its DT node.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/bridge/ti-tfp410.c

@@ -27,6 +27,7 @@
 struct tfp410 {
 	struct drm_bridge	bridge;
 	struct drm_connector	connector;
+	unsigned int		connector_type;
 
 	struct i2c_adapter	*ddc;
 	struct gpio_desc	*hpd;
@@ -126,7 +127,7 @@ static int tfp410_attach(struct drm_bridge *bridge)
 	drm_connector_helper_add(&dvi->connector,
 				 &tfp410_con_helper_funcs);
 	ret = drm_connector_init(bridge->dev, &dvi->connector,
-				 &tfp410_con_funcs, DRM_MODE_CONNECTOR_HDMIA);
+				 &tfp410_con_funcs, dvi->connector_type);
 	if (ret) {
 		dev_err(dvi->dev, "drm_connector_init() failed: %d\n", ret);
 		return ret;
@@ -172,6 +173,11 @@ static int tfp410_get_connector_properties(struct tfp410 *dvi)
 	if (!connector_node)
 		return -ENODEV;
 
+	if (of_device_is_compatible(connector_node, "hdmi-connector"))
+		dvi->connector_type = DRM_MODE_CONNECTOR_HDMIA;
+	else
+		dvi->connector_type = DRM_MODE_CONNECTOR_DVID;
+
 	dvi->hpd = fwnode_get_named_gpiod(&connector_node->fwnode,
 					"hpd-gpios", 0, GPIOD_IN, "hpd");
 	if (IS_ERR(dvi->hpd)) {