Il 22/03/23 11:46, Pin-yen Lin ha scritto:
From: Prashant Malani <pmal...@chromium.org>
When using OF graph, the fw_devlink code will create links between the
individual port driver (cros-ec-typec here) and the parent device for
a Type-C switch (like mode-switch). Since the mode-switch will in turn
have the usb-c-connector (i.e the child of the port driver) as a
supplier, fw_devlink will not be able to resolve the cyclic dependency
correctly.
As a result, the mode-switch driver probe() never runs, so mode-switches
are never registered. Because of that, the port driver probe constantly
fails with -EPROBE_DEFER, because the Type-C connector class requires all
switch devices to be registered prior to port registration.
To break this deadlock and allow the mode-switch registration to occur,
purge all the usb-c-connector nodes' absent suppliers. This eliminates
the connector as a supplier for a switch and allows it to be probed.
Signed-off-by: Prashant Malani <pmal...@chromium.org>
Signed-off-by: Pin-yen Lin <treapk...@chromium.org>
Reviewed-by: Chen-Yu Tsai <we...@chromium.org>
Tested-by: Chen-Yu Tsai <we...@chromium.org>
Acked-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Reviewed-by: AngeloGioacchino Del Regno
<angelogioacchino.delre...@collabora.com>
