linux-kernel - [PATCH 5.14 009/151] usb: typec: tipd: Remove dependency on "connector" child fwnode

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Message-Id: <20211011134518.148420921@linuxfoundation.org>
Date:   Mon, 11 Oct 2021 15:44:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        "Regupathy, Rajaram" <rajaram.regupathy@...el.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: [PATCH 5.14 009/151] usb: typec: tipd: Remove dependency on "connector" child fwnode

From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

commit b87d8d0d4c43c29ccdc57d15b2ebc1df886a34b4 upstream.

There is no "connector" child node available on every
platform, so the driver can't fail to probe when it's
missing.

Fixes: 57560ee95cb7 ("usb: typec: tipd: Don't block probing of consumer of "connector" nodes")
Cc: stable@...r.kernel.org # 5.14+
Reported-by: "Regupathy, Rajaram" <rajaram.regupathy@...el.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Link: https://lore.kernel.org/r/20210930124758.23233-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/typec/tipd/core.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -625,10 +625,6 @@ static int tps6598x_probe(struct i2c_cli
 	if (ret < 0)
 		return ret;
 
-	fwnode = device_get_named_child_node(&client->dev, "connector");
-	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.
@@ -636,7 +632,9 @@ static int tps6598x_probe(struct i2c_cli
 	 * with existing DT files, we work around this by deleting any
 	 * fwnode_links to/from this fwnode.
 	 */
-	fw_devlink_purge_absent_suppliers(fwnode);
+	fwnode = device_get_named_child_node(&client->dev, "connector");
+	if (fwnode)
+		fw_devlink_purge_absent_suppliers(fwnode);
 
 	tps->role_sw = fwnode_usb_role_switch_get(fwnode);
 	if (IS_ERR(tps->role_sw)) {