On Sat, Feb 04, 2023 at 09:30:36PM +0800, Pin-yen Lin wrote:
> The output port endpoints can be connected to USB-C connectors.
> Running drm_of_find_panel_or_bridge() with such endpoints leads to
> a continuous return value of -EPROBE_DEFER, even though there is
> no panel present.
>
> To avoid this, check for the existence of a "mode-switch" property in
> the port endpoint, and skip panel registration completely if so.
...
> + /*
> + * Don't bother finding a panel if a Type-C `mode-switch` property is
> + * present in one of the endpoints.
> + */
> + for_each_endpoint_of_node(np, sw) {
> + if (of_property_read_bool(sw, "mode-switch")) {
Might be that the same helper can be used here. Dunno if the endpoint traverse
should be used for the other driver as well.
> + of_node_put(sw);
> + return 0;
> + }
> + }
--
With Best Regards,
Andy Shevchenko
