From: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>
commit 6b63376722d9e1b915a2948e9b30f4ba2712e3f5 upstream.
Similar as with tcpm this patch lets fw_devlink know not to wait on the
fwnode to be populated as a struct device.
Without this patch, USB functionality can be broken on some previously
supported boards.
Fixes: 28ec344bb891 ("usb: typec: tcpm: Don't block probing of consumers of "connector" nodes")
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210716120718.20398-3-amelie.delaunay@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/typec/stusb160x.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/usb/typec/stusb160x.c
+++ b/drivers/usb/typec/stusb160x.c
@@ -686,6 +686,15 @@ static int stusb160x_probe(struct i2c_cl
return -ENODEV;
/*
+ * This fwnode has a "compatible" property, but is never populated as a
+ * struct device. Instead we simply parse it to read the properties.
+ * This it breaks fw_devlink=on. To maintain backward compatibility
+ * with existing DT files, we work around this by deleting any
+ * fwnode_links to/from this fwnode.
+ */
+ fw_devlink_purge_absent_suppliers(fwnode);
+
+ /*
* When both VDD and VSYS power supplies are present, the low power
* supply VSYS is selected when VSYS voltage is above 3.1 V.
* Otherwise VDD is selected.
