usb: typec: tipd: Don't block probing of consumer of "connector" nodes

commit 57560ee95cb7f91cf0bc31d4ae8276e0dcfe17aa 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@vger.kernel.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Link: https://lore.kernel.org/r/20210714061807.5737-1-martin.kepplinger@puri.sm
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 938219bc1b4beab3c2648f14508656c83d917fd3..21b3ae25c76d2c210396af4d9f6dc6eeabf25a33 100644 (file)
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -629,6 +629,15 @@ static int tps6598x_probe(struct i2c_client *client)
        if (!fwnode)
                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 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);
+
        tps->role_sw = fwnode_usb_role_switch_get(fwnode);
        if (IS_ERR(tps->role_sw)) {
                ret = PTR_ERR(tps->role_sw);