drm/bridge: tc358767: read display_props in get_modes()

We need to know the link bandwidth to filter out modes we cannot
support, so we need to have read the display props before doing the
filtering.

To ensure we have up to date display props, call tc_get_display_props()
in the beginning of tc_connector_get_modes().

Signed-off-by: Tomi Valkeinen <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Signed-off-by: Andrzej Hajda <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: tomba

drivers/gpu/drm/bridge/tc358767.c

@@ -1188,6 +1188,13 @@ static int tc_connector_get_modes(struct drm_connector *connector)
 	struct tc_data *tc = connector_to_tc(connector);
 	struct edid *edid;
 	unsigned int count;
+	int ret;
+
+	ret = tc_get_display_props(tc);
+	if (ret < 0) {
+		dev_err(tc->dev, "failed to read display props: %d\n", ret);
+		return 0;
+	}
 
 	if (tc->panel && tc->panel->funcs && tc->panel->funcs->get_modes) {
 		count = tc->panel->funcs->get_modes(tc->panel);